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AT Shift Lock System


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                                                  AT SHIFT LOCK SYSTEM
                                                                                                              CONTROL SYSTEMS

3. AT Shift Lock System
A: ELECTRICAL SPECIFICATION




                                     TO   B280                                             TO B281




                       8    7    6        5   4   3   2   1                  10 9    8    7   6   5   4   3   2   1
                      16 15 14 13 12 11 10 9                                 20 19 18 17 16 15 14 13 12 11




                                                                                                                            CS-00086


                                          To Connector                                          Input/Output signal
           Contents                                           Terminal No.
                                              No.                                   Measured value and measuring conditions
    Battery power supply                      B280                 2                                 9 -- 16 V
    Ignition power supply                     B281                19           10 -- 15 V when ignition switch is at ON or START.
    Ignition power supply                     B281                10            10 -- 15 V when ignition switch is at ACC or ON.
                                                                                       0 V when select lever is in "P" range.
  Inhibitor Switch ("P" range)                B281                 5          9 -- 16 V when select lever is in other ranges than "P"
                                                                                                       range.
                                                                                      9 -- 16 V when stop light switch is ON.
       Stop light switch                      B281                 9
                                                                                         0 V when stop light switch is OFF.
                                                                                       0 V when select lever is in "P" range.
       "P" range switch                       B281                 6          9 -- 16 V when select lever is in other ranges than "P"
                                                                                                       range.
                                                                                      8.5 -- 16 V when shift lock is released.
   Shift lock solenoid signal                 B280                 9
                                                                                          0 V when shift lock is operating.
                                                                                          9 -- 16 V when key is inserted.
  Key warning switch signal                   B281                20
                                                                                             0 V when key is removed.
                                                                             Pulse is output when switching key lock between locked
   Key lock solenoid signal                   B280                 3                               and unlocked.
                                                                                        0 V at other conditions than above.
            Ground                            B280                 4                                     --
            Ground                            B280                13                                     --




                                                                  CS-9
                            AT SHIFT LOCK SYSTEM
CONTROL SYSTEMS

B: WIRING DIAGRAM



              OFF ACC ON




                                                                                     CS-00012


 (1)   Ignition switch      (4)   Body integrated unit   (7)   Shift lock solenoid
 (2)   Stop light switch    (5)   Inhibitor switch       (8)   "P" range switch
 (3)   Key warning switch   (6)   Key lock solenoid      (9)   Battery




                                          CS-10
                                       AT SHIFT LOCK SYSTEM
                                                                                              CONTROL SYSTEMS

C: INSPECTION
1. SHIFT LOCK OPERATION

                      Step                                 Check                          Yes               No
1     CHECK SHIFT LOCK.                        While the brake pedal is not       Inspect "SELECT   Go to step 2.
      1) Turn the ignition switch ON.          depressed, can select lever        LEVER SHIFT
      2) Move the select lever to "P" range.   move from "P" range to other       LOCK CANNOT
                                               ranges?                            BE RELEASED".
                                                                                  
2     CHECK SHIFT LOCK.                        While the brake pedal is           Go to step 3.     Inspect "SELECT
                                               depressed, can select lever                          LEVER CANNOT
                                               move from "P" range to other                         BE SHIFT
                                               ranges?                                              LOCKED". 
3     CHECK KEY INTERLOCK.                     When the select lever is in      Inspect "KEY        Go to step 4.
                                               other than "P" range, does igni- INTERLOCK
                                               tion switch turn to "LOCK"       DOES NOT BE
                                               position?                        LOCKED OR
                                                                                RELEASED. 
4     CHECK KEY INTERLOCK.                      When the select lever is in "P" AT shift lock sys- Inspect "KEY
                                               range, does ignition switch turn tem is normal.     INTERLOCK
                                               to "LOCK" position?                                 DOES NOT BE
                                                                                                   LOCKED OR
                                                                                                   RELEASED. 




                                                CS-11
                                             AT SHIFT LOCK SYSTEM
CONTROL SYSTEMS

2. BODY INTEGRATED UNIT POWER SUPPLY AND GROUND LINE
WIRING DIAGRAM:

   IGNITION
   SWITCH
         OFF ACC ON
                                    FBS-4                                                                                   FBS-1
    B
   ACC
    IG                                                                                                                      FBS-6




                                                             No.18




                                                                                   No.4




                                                                                                          No.3
                                                                                                                                    BATTERY




                                                                                                                             A13
                                                                     B19




                                                                                          B10




                                                                                                                 A2




                                                                                                                       A4
                                                                               A: B280
                                                                                                BODY INTEGRATED UNIT
                                                                               B: B281
                                                                                                                                              E




                B281                        B280


    1 2 3 4 5 6 7 8 9 10            1 2 3 4 5 6 7 8
    11 12 13 14 15 16 17 18 19 20   9 10 11 12 13 14 15 16




                                                                                                                                              CS-00087




                                                                           CS-12
                                    AT SHIFT LOCK SYSTEM
                                                                                                  CONTROL SYSTEMS

                  Step                                         Check                       Yes                   No
1   CHECK FUSE.                                   Is the fuse (No. 3, 4 and 18)   Replace the fuse Go to step 2.
    Remove the fuse (No. 3, 4 and 18).            blown out?                      (No. 3, 4 and 18).
                                                                                  If the replaced
                                                                                  fuse (No. 3, 4 and
                                                                                  18) has blown out
                                                                                  easily, repair short
                                                                                  circuit in harness
                                                                                  between fuse and
                                                                                  body integrated
                                                                                  unit.
2   CHECK HARNESS CONNECTOR BETWEEN Is the resistance less than 1                 Go to step 3.        Repair the open
    BODY INTEGRATED UNIT AND BODY              ?                                                       circuit in harness
    GROUND.                                                                                            between body inte-
    1) Turn the ignition switch to OFF.                                                                grated unit and
    2) Measure the resistance of harness                                                               body ground.
    between body integrated unit and chassis
    ground.
     Connector & terminal
       (B280) No. 4 -- Chassis ground:
       (B280) No. 13 -- Chassis ground:
3   CHECK BATTERY POWER SUPPLY.                Is the voltage more than 9 V?      Go to step 4.       Repair the open
    1) Turn the ignition switch to ON (engine                                                         circuit harness
    OFF).                                                                                             between battery
    2) Measure the voltages between body inte-                                                        and body inte-
    grated unit and chassis ground.                                                                   grated unit, and
     Connector & terminal                                                                             poor contact in
       (B280) No. 2 (+) -- Chassis ground (-):                                                        coupling connec-
                                                                                                      tor.
4   CHECK IGNITION POWER SUPPLY CIR-              Is the voltage more than 9 V?   Go to step 5.       Repair the open
    CUIT.                                                                                             circuit harness
    1) Turn the ignition switch to ACC.                                                               between battery
    2) Measure the voltage between body inte-                                                         and body inte-
    grated unit and chassis ground.                                                                   grated unit, and
     Connector & terminal                                                                             poor contact in
       (B281) No. 10 (+) -- Chassis ground (-):                                                       coupling connec-
                                                                                                      tor.
5   CHECK IGNITION POWER SUPPLY CIR-              Is the voltage more than 9 V?   Go to step 6.       Repair the open
    CUIT.                                                                                             circuit harness
    1) Turn the ignition switch to ON (engine                                                         between battery
    OFF).                                                                                             and body inte-
    2) Measure the voltage between body inte-                                                         grated unit, and
    grated unit and chassis ground.                                                                   poor contact in
     Connector & terminal                                                                             coupling connec-
       (B281) No. 19 (+) -- Chassis ground (-):                                                       tor.
6   CHECK POOR CONTACT.                           Is there poor contact in con-   Repair the poor     Replace the body
                                                  nector?                         contact.            integrated unit.




                                                   CS-13
                                                  AT SHIFT LOCK SYSTEM
CONTROL SYSTEMS

3. SELECT LEVER CANNOT BE SHIFT LOCKED
WIRING DIAGRAM:

                                                                         SBF-1




                                     FBS-2
                                                                                                       BATTERY




                                    No.16




                                                                                                        STOP LIGHT SWITCH
                                                                                                        OC WC
                                                                                                         1  2
                                                                                                         2  3

                                                                                                           B64    : OC
                                             B9




                                                                                                           B65    : WC   TB


                         A: B280
                                   BODY INTEGRATED UNIT
                         B: B281
                                             A9




                                                                                                           DIODE
                                                                                                            3

                                                                                                            4

                                                                                                           B112
                                                            TB




                                                                                 TB




        WITH CRUISE                                                                                        SHIFT LOCK SOLENOID
   WC : CONTROL SYSTEM
                                                                 NA       NA                                4
   OC    : WITHOUT CRUISE
           CONTROL SYSTEM                                                                                   5

   TB    : TURBO MODEL
                                                                                                           B117



    NA   : NON-TURBO MODEL


    TB   : TURBO MODEL                       E




           B64               B65                   B117                        B: B281 (GRAY)                            A: B280 (BLUE)

           1 2               1 2                  1     2              1 2 3 4 5 6 7 8 9 10                          1 2 3 4 5 6 7 8
                             3 4                  3 4 5 6              11 12 13 14 15 16 17 18 19 20                 9 10 11 12 13 14 15 16


          B112


         1 2 3 4

                                                                                                                                              CS-00337




                                                                      CS-14
                                    AT SHIFT LOCK SYSTEM
                                                                                                    CONTROL SYSTEMS

                     Step                                       Check                      Yes                    No
1   CHECK STOP LIGHT SWITCH.                        Does the stop light turn on?    Go to step 2.        Inspect the stop
    Depress the brake pedal.                                                                             light system.
2   CHECK HARNESS BETWEEN STOP LIGHT                Is the resistance more than 1   Repair the open      Go to step 3.
    SWITCH AND BODY INTEGRATED UNIT.                M?                              circuit in harness
    1) Turn the ignition switch to OFF.                                             between body inte-
    2) Disconnect the body integrated unit and                                      grated unit and
    stoplight switch connector.                                                     stop light switch.
    3) Measure the resistance of harness
    between stop light switch and body integrated
    unit.
      Connector & terminal
        Without cruise control system
          (B64) No. 2 -- (B281) No. 9:
        With cruise control system
          (B65) No. 3 -- (B281) No. 9:
3   CHECK HARNESS BETWEEN STOP LIGHT                Is the resistance less than 1   Repair the short   Go to step 4.
    SWITCH AND BODY INTEGRATED UNIT.                ?                               circuit in harness
    Measure the resistance of harness between                                       between body inte-
    stop light switch and chassis ground.                                           grated unit and
      Connector & terminal                                                          stop light switch.
        Without cruise control system
          (B64) No. 2 -- Chassis ground:
        With cruise control system
          (B65) No. 3 -- Chassis ground:
4   CHECK HARNESS BETWEEN BODY INTE-                Is the resistance more than 1   Repair the open      Go to step 5.
    GRATED UNIT AND SHIFT LOCK SOLE-                M?                              circuit in harness
    NOID.                                                                           between body inte-
    1) Disconnect the shift lock solenoid connec-                                   grated unit and
    tor.                                                                            shift lock solenoid.
    2) Measure the resistance of harness
    between body integrated unit and shift lock
    solenoid.
      Connector & terminal
        (B117) No. 4 -- (B280) No. 9:
5   CHECK HARNESS BETWEEN BODY INTE-                Is the resistance less than 1   Repair the short     Go to step 6.
    GRATED UNIT AND SHIFT LOCK SOLE-                ?                               circuit in harness
    NOID.                                                                           between body inte-
    Measure the resistance of harness between                                       grated unit and
    shift lock solenoid and chassis ground.                                         shift lock solenoid.
      Connector & terminal
        (B117) No. 4 -- Chassis ground:
6   CHECK HARNESS BETWEEN SHIFT LOCK                Is the resistance more than 1   Repair the open    Go to step 7.
    SOLENOID AND CHASSIS GROUND.                    M?                              circuit in harness
    Measure the resistance of harness between                                       between shift lock
    shift lock solenoid and chassis ground.                                         solenoid and body
      Connector & terminal                                                          ground.
        (B117) No. 5 -- Chassis ground:
7   CHECK SHIFT LOCK SOLENOID.                      Is the resistance 20 -- 40 ?    Go to step 8.        Replace the shift
    Measure the resistance of shift lock solenoid                                                        lock solenoid.
    connector terminals.
      Terminal
        No. 4 -- No. 5:
8   CHECK SHIFT LOCK SOLENOID.                      Does the shift lock solenoid    Go to step 9.        Replace the shift
    Connect the battery with shift lock solenoid    operate properly?                                    lock solenoid.
    connector terminal and operate solenoid.
      Terminal
        No. 4 (+) -- No. 5 (-):
9   CHECK POOR CONTACT.                             Is there poor contact in con-   Repair the poor      Replace the body
                                                    nector?                         contact.             integrated unit.


                                                     CS-15
                                                    AT SHIFT LOCK SYSTEM
CONTROL SYSTEMS

4. SELECT LEVER SHIFT LOCK CANNOT BE RELEASED
WIRING DIAGRAM:

                                                                                                                                          WC : WITH CRUISE
                                                                                                                                               CONTOROL SYSTEM




                                                                    FBS-1
                                                                                                                                          OC   : WITHOUT CRUISE
                                                                                                                                                CONTOROL SYSTEM




                                                                                                             FBS-2
              BATTERY                                                                                                                     TB   : TURBO MODEL




                                                                    FBS-4
                                              IGNITION
                                              SWITCH                                                                                      NA   : NON-TURBO MODEL
                                                    OFF ACC ON
                                               B                                                                                          TB   : TURBO MODEL




                                                                                                            No.16
                                              ACC
                                              IG
 INHIBITOR SWITCH
                                                                                                                                                    STOP LIGHT SWITCH
    P
                                                                                                                                                      OC WC



                                                                    No.18
         9               3                                                                                                                             1  2
         5               4                                                                                                                             2  3

             T7     T3       B12                                                                                                                            B64   :   OC
                                                                            B19
                                         B5




                                                                                                                     B9
                                                                                                                                                            B65   :   WC    TB


                                                       A: B280
                                                                    BODY INTEGRATED UNIT
                                                       B: B281
                                                                              A9




                                                                                                                                                              DIODE
                                                                                                                                                        3

                                                                                                                                                        4

                                                                                                                                                      B112
                                                                                                TB




                                                                                                                                TB




                                                                                                                                                    SHIFT LOCK SOLENOID
                                                                                                     NA                   NA                            4

                                   E                                                                                                                    5
                                                     E
                                                                                                                                                      B117




   B64            B65                  B117                 B112                     B12                                                              A: B280
                                                                                                                      B: B281

   1 2            1 2              1     2                                         1 2 3 4                1 2 3 4 5 6 7 8 9 10                     1 2 3 4 5 6 7 8
                  3 4              3 4 5 6
                                                          1 2 3 4                  5 6 7 8                11 12 13 14 15 16 17 18 19 20            9 10 11 12 13 14 15 16
                                                                                   9 10 11 12

                                                                                                                                                                      CS-00338




                                                                                  CS-16
                                     AT SHIFT LOCK SYSTEM
                                                                                                       CONTROL SYSTEMS

                    Step                                            Check                  Yes                      No
1   CHECK INHIBITOR SWITCH.                           Are combination meter indica- Go to step 2.          Adjust the inhibi-
    1) Turn the ignition switch to ON (engine         tor light and select lever "P",                      tor switch and
    OFF).                                             "R", "N", "3", "2" and "1" cor-                      select cable.
    2) Move the select lever from "P" to "1" range.   rectly matched?
2   CHECK IGNITION POWER SUPPLY CIR-                  Is the voltage more than 9V? Go to step 3.           Repair the open
    CUIT.                                                                                                  circuit harness
    1) Turn the ignition switch to ON (engine                                                              between battery
    OFF).                                                                                                  and body inte-
    2) Measure the voltage between body inte-                                                              grated unit, and
    grated unit and chassis ground.                                                                        poor contact in
     Connector & terminal                                                                                  coupling connec-
       (B281) No. 19 (+) -- Chassis ground (-):                                                            tor.
3   CHECK HARNESS BETWEEN INHIBITOR                   Is the resistance less than 1   Repair the short     Go to step 4.
    SWITCH AND BODY INTEGRATED UNIT.                  ?                               circuit in harness
    1) Turn the ignition switch to OFF.                                               between body inte-
    2) Disconnect the connector of transmission                                       grated unit and
    harness and body integrated unit.                                                 transmission con-
    3) Measure the resistance of harness                                              nector.
    between body integrated unit and chassis
    ground.
     Connector & terminal
       (B280) No. 5 -- Chassis ground:
4   CHECK HARNESS BETWEEN INHIBITOR                   Is the resistance more than 1   Repair the open    Go to step 5.
    SWITCH AND BODY INTEGRATED UNIT.                  M?                              circuit in harness
    Measure the resistance of harness between                                         between body inte-
    body integrated unit and inhibitor switch.                                        grated unit and
     Connector & terminal                                                             transmission con-
       (B12) No. 3 -- (B281) No. 5:                                                   nector
5   CHECK HARNESS BETWEEN INHIBITOR                   Is the resistance less than 1   Go to step 6.      Repair the open
    SWITCH AND CHASSIS GROUND.                        ?                                                  circuit in harness
    Measure the resistance of harness between                                                            between body inte-
    body integrated unit and chassis ground.                                                             grated unit and
     Connector & terminal                                                                                chassis ground.
       (B12) No. 4 -- Chassis ground:
6   CHECK INHIBITOR SWITCH.                           Is the resistance more than 1   Repair or replace    Go to step 7.
    1) Move the select lever to "P" range.            M?                              the inhibitor
    2) Measure the resistance of transmission                                         switch.
    harness connector terminals.
     Connector & terminal
       (T3) No. 3 -- No. 4:
7   CHECK OUTPUT SIGNAL FOR BODY INTE-                Is the voltage 9 -- 16 V?       Go to step 8.        Go to step 16.
    GRATED UNIT.
    1) Connect all connectors.
    2) Turn the ignition switch to ON.
    3) Measure the voltage between body inte-
    grated unit and chassis ground.
     Connector & terminal
       (B281) No. 5 (+) -- Chassis ground (-):
8   CHECK STOP LIGHT SWITCH.                          Does the stop light turn on?    Go to step 9.        Inspect the stop
    Depress the brake pedal.                                                                               light system.
9   CHECK HARNESS BETWEEN STOP LIGHT                  Is the voltage more than 9 V?   Go to step 10.       Repair the open or
    SWITCH AND AT SHIFT LOCK CONTROL                                                                       short circuit in har-
    MODULE.                                                                                                ness between
    1) Depress the brake pedal.                                                                            body integrated
    2) Measure the voltage between body inte-                                                              unit and stop light
    grated unit and chassis ground.                                                                        switch.
     Connector & terminal
       (B281) No. 9 (+) -- Chassis ground (-):



                                                       CS-17
                                      AT SHIFT LOCK SYSTEM
CONTROL SYSTEMS

                       Step                                        Check                        Yes                 No
10    CHECK HARNESS BETWEEN BODY INTE-                Is the resistance more than 1    Repair the open      Go to step 11.
      GRATED UNIT AND SHIFT LOCK SOLE-                M?                               circuit in harness
      NOID.                                                                            between body inte-
      1) Turn the ignition switch to OFF.                                              grated unit and
      2) Disconnect the connector from shift lock                                      shift lock solenoid.
      solenoid and body integrated unit.
      3) Measure the resistance of harness
      between body integrated unit and shift lock
      solenoid.
       Connector & terminal
         (B280) No. 9 -- (B117) No. 4:
11    CHECK HARNESS BETWEEN BODY INTE-                Is the resistance less than 10   Go to step 12.      Repair the short
      GRATED UNIT AND SHIFT LOCK SOLE-                ?                                                    circuit in harness
      NOID.                                                                                                between body inte-
      Measure the resistance of harness between                                                            grated unit and
      shift lock solenoid and chassis ground.                                                              shift lock solenoid.
       Connector & terminal
         (B280) No. 9 -- Chassis ground:
12    CHECK HARNESS BETWEEN SHIFT LOCK                Is the resistance less than 1    Go to step 13.      Repair the open
      SOLENOID AND CHASSIS GROUND.                    ?                                                    circuit in harness
      Measure the resistance of harness between                                                            between shift lock
      shift lock solenoid and chassis ground.                                                              solenoid and chas-
       Connector & terminal                                                                                sis ground.
         (B117) No. 5 -- Chassis ground:
13    CHECK SHIFT LOCK SOLENOID.                      Is the resistance 20 -- 40 ?     Go to step 14.      Replace the shift
      Measure the resistance of shift lock solenoid                                                        lock solenoid.
      connector terminals.
       Terminal
         No. 4 -- No. 5:
14    CHECK SHIFT LOCK SOLENOID.                      Is the shift lock solenoid oper- Go to step 15.      Replace the shift
      Connect the battery with shift lock solenoid    ating properly?                                      lock solenoid.
      connector terminal and operate solenoid.
       Terminal
         No. 4 (+) -- No. 5 (-):
15    CHECK OUTPUT SIGNAL FOR AT SHIFT                Is the voltage more than 8.5 V? Go to step 16.       Replace the body
      LOCK CONTROL MODULE.                                                                                 integrated unit.
      1) Turn the ignition switch to ON (engine
      OFF).
      2) Measure the voltage between body inte-
      grated unit and chassis ground.
       Connector & terminal
         (B280) No. 9 (+) -- Chassis ground (-):
16    CHECK POOR CONTACT.                             Is there poor contact in con-    Repair the poor     Replace the body
                                                      nector?                          contact.            integrated unit.




                                                       CS-18
                                          AT SHIFT LOCK SYSTEM
                                                                                                                   CONTROL SYSTEMS

5. KEY INTERLOCK DOES NOT LOCK OR RELEASE
WIRING DIAGRAM:


                                                      SBF-2                                             SBF-1




                              No.6
                                                                                                                        BATTERY




                                                                                                                        KEY WARNING SWITCH
                                                              F44       B61

                                                                    4                                                     2
                                                                                                                          1

                                                                                                                        B74




                                                                                            B20
                                           A: B280
                                                      BODY INTEGRATED UNIT
                                           B: B281
                                     B6




                                                                                            A3
  "P"RANGE SWITCH


                  2
                  6
                                                                                                  B73
                 B117
                                                                                        1
                                                                                            2




                                     E                                   E      KEY LOCK SOLENOID




         B73            B74                  B117                              B: B281                             A:    B280

         1 2            1                   1     2                     1 2 3 4 5 6 7 8 9 10                    1 2 3 4 5 6 7 8
                        2                   3 4 5 6                     11 12 13 14 15 16 17 18 19 20           9 10 11 12 13 14 15 16


         F44

       1 2 3 4
       5 6 7 8




                                                                                                                                         CS-00339




                                                       CS-19
                                      AT SHIFT LOCK SYSTEM
CONTROL SYSTEMS

                      Step                                         Check                      Yes                   No
1     CHECK HARNESS BETWEEN BATTERY                   Is the voltage 9 -- 16 V?        Go to step 2.       Repair the open or
      AND KEY WARNING SWITCH.                                                                              short circuit in har-
      1) Disconnect the connector key warning                                                              ness between bat-
      switch.                                                                                              tery and key
      2) Measure the voltage of harness between                                                            warning switch.
      key warning switch and chassis ground.
       Connector & terminal
         (B74) No. 2 (+) -- Chassis ground (-):
2     CHECK KEY WARNING SWITCH.                       Is the resistance more than 1    Replace the key     Go to step 4.
      Measure the resistance of key warning switch    M?                               warning switch.
      connector terminals.
       Terminal
         No. 1 -- No. 2:
3     CHECK KEY WARNING SWITCH.                       Is the resistance more than 1    Go to step 4.       Replace the key
      1) Remove the key.                              M?                                                   warning switch.
      2) Measure the resistance of key warning
      switch connector terminals.
       Terminal
         No. 1 -- No. 2:
4     CHECK HARNESS BETWEEN AT SHIFT                  Is the voltage more than 9 V?    Go to step 5.       Repair the open
      LOCK CONTROL MODULE AND KEY                                                                          circuit in harness
      WARNING SWITCH.                                                                                      between body inte-
      1) Disconnect the body integrated unit con-                                                          grated unit and key
      nector.                                                                                              warning switch.
      2) Measure the voltage of harness body inte-
      grated unit and chassis ground.
       Connector & terminal
         (B281) No. 20 (+) -- Chassis ground (-):
5     CHECK HARNESS BETWEEN BODY INTE-                Is the resistance more than 1    Repair the open     Go to step 6.
      GRATED UNIT AND KEY LOCK SOLENOID.              M?                               circuit in harness
      1) Disconnect the connector of key lock sole-                                    between body inte-
      noid.                                                                            grated unit and key
      2) Measure the resistance of harness                                             lock solenoid.
      between body integrated unit and key lock
      solenoid.
       Connector & terminal
         (B73) No. 2 -- (B280) No. 3:
6     CHECK HARNESS BETWEEN BODY INTE-                Is the resistance more than 1    Go to step 7.       Repair the short
      GRATED UNIT AND KEY LOCK SOLENOID.              ?                                                    circuit in harness
      Measure the resistance of harness between                                                            between body inte-
      body integrated unit and chassis ground.                                                             grated unit and key
       Connector & terminal                                                                                lock solenoid.
         (B280) No. 3 -- Chassis ground:
7     CHECK HARNESS BETWEEN KEY LOCK                  Is the resistance less than 10   Go to step 8.       Repair the open
      SOLENOID AND CHASSIS GROUND.                    ?                                                    circuit in harness
      Measure the resistance of harness between                                                            between key lock
      key lock solenoid and chassis ground.                                                                solenoid and chas-
       Connector & terminal                                                                                sis ground.
         (B73) No. 1 -- Chassis ground:
8     CHECK KEY LOCK SOLENOID.                        Is the resistance 4 -- 8 ?       Go to step 14.      Replace the key
      Measure the resistance of key lock solenoid                                                          lock solenoid.
      connector terminals.
       Terminal
         No. 1 -- No. 2:




                                                       CS-20
                                   AT SHIFT LOCK SYSTEM
                                                                                                    CONTROL SYSTEMS

                     Step                                       Check                     Yes                    No
9    CHECK HARNESS BETWEEN "P" RANGE               Is the resistance less than 1   Go to step 10.      Repair the short
     SWITCH AND CHASSIS GROUND.                    ?                                                   circuit in harness
     Measure the resistance of harness between                                                         between "P" range
     "P" range switch and chassis ground.                                                              switch and body
       Connector & terminal                                                                            integrated unit.
        (B117) No. 2 -- Chassis ground:
10   CHECK HARNESS BETWEEN AT SHIFT                Is the resistance more than 1   Repair the open     Go to step 11.
     LOCK CONTROL MODULE AND "P" RANGE             M?                              circuit in harness
     SWITCH.                                                                       between body inte-
     1) Disconnect the connector from "P" range                                    grated unit and "P"
     switch.                                                                       range switch.
     2) Measure the resistance of harness
     between body integrated unit and "P" range
     switch.
       Connector & terminal
        (B117) No. 2 -- (B281) No. 6:
11   CHECK HARNESS BETWEEN "P" RANGE               Is the resistance less than 1   Go to step 12.      Repair the open
     SWITCH AND CHASSIS GROUND.                    M?                                                  circuit in harness
     Measure the resistance of harness "P" range                                                       between "P" range
     switch and chassis ground.                                                                        switch and chas-
       Connector & terminal                                                                            sis ground.
        (B117) No. 6 -- Chassis ground:
12   CHECK "P" RANGE SWITCH.                       Is the resistance less than 1   Go to step 13.      Replace the "P"
     1) Move the select lever to "P" range.        ?                                                   range switch.
     2) Measure resistance between "P" range
     switch connector terminals.
       Terminal
        No. 2 -- No. 6:
13   CHECK "P" RANGE SWITCH.                       Is the resistance more than 1   Go to step 14.      Replace the "P"
     1) Move the select lever to other than "P"    ?                                                   range switch.
     range.
     2) Measure resistance between "P" range
     switch connector terminals.
       Terminal
        No. 2 -- No. 6:
14   CHECK OUTPUT SIGNAL FOR BODY INTE-            Is the voltage 7.5 -- 16 V?     Go to step 15.      Replace the body
     GRATED UNIT.                                                                                      integrated unit.
     1) Connect all connectors.
     2) Turn the ignition switch to ON (engine
     OFF).
     3) Move the select lever to "P" range.
     4) Press the brake pedal.
     5) Measure the voltage between body inte-
     grated unit connector and chassis ground.
       Connector & terminal
        (B280) No. 3 (+) -- Chassis ground (-):
15   CHECK POOR CONTACT.                           Is there poor contact in con-   Repair the poor     Replace the body
                                                   nector?                         contact.            integrated unit.




                                                    CS-21



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