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Combination Meter System


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                            COMBINATION METER SYSTEM
                                                                   INSTRUMENTATION/DRIVER INFO

2. Combination Meter System
A: WIRING DIAGRAM
1. COMBINATION METER

2. OUTSIDE TEMPERATURE INDICATOR





                                             IDI-3
                                    COMBINATION METER SYSTEM
INSTRUMENTATION/DRIVER INFO

B: INSPECTION
CAUTION:
When measuring voltage and resistance of the ECM, TCM, or each sensor, use a tapered pin with a
diameter of less than 0.64 mm (0.025 in) in order to avoid poor contact. Do not insert the pin more
than 2 mm (0.08 in).
1. SYMPTOM CHART
Symptom                                           Repair order                            Reference
Combination meter assembly does not operate.      (1) Power supply                        
Speedometer does not operate.                     (1) (MT model) Vehicle speed sensor     MT model: 
                                                                                          AT model: 
Tachometer does not operate.                      (1) ECM                                 
Fuel gauge does not operate.                      (1) Fuel level sensor                   
Water temperature gauge does not operate.         (1) Engine coolant temperature sensor   
Outside temperature indicator does not operate.   (1) Ambient sensor                      




                                                          IDI-4
                                COMBINATION METER SYSTEM
                                                                                     INSTRUMENTATION/DRIVER INFO

2. CHECK POWER SUPPLY AND GROUND CIRCUIT

                      Step                                       Check                    Yes                    No
1     CHECK POWER SUPPLY FOR COMBINA-               Is the voltage more than 10 V? Go to step 2.         Check the harness
      TION METER.                                                                                        for open or short
      1) Remove the combination meter.                                                                                          nation meter.
      2) Disconnect the combination meter harness
      connector.
      3) Turn the ignition switch to ON.
      4) Measure the voltage between combination
      meter connector and chassis ground.
        Connector & terminal
         (i10) No. 9 (+) -- Chassis ground (-):
2     CHECK POWER SUPPLY FOR COMBINA-               Is the voltage more than 10 V? Go to step 3.         Check the harness
      TION METER.                                                                                        for open or short
      Measure the voltage between combination                                                            between fuse and
      meter connector and chassis ground.                                                                combination
        Connector & terminal                                                                             meter.
         (i10) No. 8 (+) -- Chassis ground (-):
3     CHECK GROUND CIRCUIT OF COMBINA-              Is the resistance less than 10    Replace the com-   Repair the wiring
      TION METER.                                   ?                                 bination meter     harness.
      1) Turn the ignition switch to OFF.                                             printed circuit.
      2) Measure the resistance of harness
      between combination meter connector and
      chassis ground.
        Connector & terminal
         (i10) No. 10 -- Chassis ground:

3. CHECK VEHICLE SPEED SENSOR

                      Step                                           Check                    Yes                No
1     CHECK VEHICLE SPEED SENSOR.                       Is the voltage 1 V   5 V?     Check the speed-   Go to step 2.
      1) Lift-up the vehicle and support it with safety                               ometer. 
      3) Drive the vehicle at a speed greater than 20
      km/h (12 MPH).
     Warning:
     Be careful not to get caught in the running
     wheels.
     4) Measure the voltage between combination
     meter connector and chassis ground.
      Connector & terminal
        (i10) No. 12 (+) -- Chassis ground (-):
2    CHECK VEHICLE SPEED SENSOR POWER Is the voltage more than 10 V? Go to step 3.                       Check the harness
     SUPPLY.                                                                                             for open or short
     1) Turn the ignition switch to OFF.                                                                 between ignition
     2) Disconnect the vehicle speed sensor har-                                                         switch and vehicle
     ness connector.                                                                                     speed sensor.
     3) Turn the ignition switch to ON.
     4) Measure the voltage between vehicle
     speed sensor connector and engine ground.
      Connector & terminal
        (B17) No. 3 (+) -- Engine ground (-):




                                                       IDI-5
                                 COMBINATION METER SYSTEM
INSTRUMENTATION/DRIVER INFO

                       Step                                        Check                      Yes                  No
3      CHECK HARNESS BETWEEN VEHICLE                  Is the resistance less than 10   Go to step 4.       Repair the wiring
       SPEED SENSOR AND ENGINE GROUND.                ?                                                    harness.
       1) Turn the ignition switch to OFF.
       2) Measure the resistance between vehicle
       speed sensor connector and engine ground.
        Connector & terminal
          (B17) No. 2 -- Engine ground:
4      CHECK HARNESS BETWEEN VEHICLE                  Is the resistance less than 10   Replace the vehi-   Repair the wiring
       SPEED SENSOR AND COMBINATION                   ?                                cle speed sensor.   harness.
       METER.
       1) Disconnect the connector from combination
       meter.
       2) Measure the resistance between vehicle
       speed sensor harness connector and combi-
       nation meter harness connector.
        Connector & terminal
          (B17) No. 1 -- (i10) No. 12:

4. CHECK TRANSMISSION CONTROL MODULE (TCM)

                       Step                                           Check                   Yes                   No
1      CHECK TCM SIGNAL.                                 Is the voltage 1 V   5 V?     Go to step 2.       Check TCM.
       1) Lift-up the vehicle and support it with safety                                                   
      Warning:
      Be careful not to get caught in the running
      wheels.
      3) Measure the voltage between TCM con-
      nector and chassis ground.
       Connector & terminal
         (B55) No. 13 (+) -- Chassis ground (-):
2     CHECK HARNESS BETWEEN TCM AND               Is the resistance less than 10       Check the speedo Repair the wiring
      COMBINATION METER.                          ?                                    meter. 
      combination meter.
      3) Measure the resistance between TCM har-
      ness connector and combination meter har-
      ness connector.
       Connector & terminal
         (B55) No. 13 -- (i10) No. 12:




                                                        IDI-6
                                  COMBINATION METER SYSTEM
                                                                                          INSTRUMENTATION/DRIVER INFO

5. CHECK ENGINE CONTROL MODULE (ECM)

                     Step                                             Check                       Yes                 No
1     CHECK ECM SIGNAL.                                  Is the voltage 0 V   14 V?        Go to step 2.     Check ECM.
      1) Start the engine.                                                                                    
          (B135) No. 27 (+) -- Engine ground (-):
2     CHECK HARNESS BETWEEN COMBINA-              Is the resistance less than 10           Check the tachom- Repair the wiring
      TION METER AND ECM.                         ?                                        eter. 
      combination meter.
      3) Measure the resistance between ECM har-
      ness connector and combination meter har-
      ness connector.
       Connector & terminal
         Non-turbo model
          (B137) No. 10 -- (i10) No. 12:
         Turbo model
          (B135) No. 27 -- (i10) No. 12:

6. CHECK FUEL LEVEL SENSOR

                      Step                                            Check                       Yes                No
1     CHECK FUEL LEVEL SENSOR.                           Is the resistance 0.5 to 2.5      Go to step 2.     Replace the fuel
      1) Remove the fuel level sensor. 
      2) Measure the resistance between fuel level
      sensor terminals when setting the float to
      FULL and EMPTY position.
        Terminals
         No. 2 -- No. 3:
2     CHECK FUEL SUB LEVEL SENSOR.                       Is the resistance 0.5 to 2.5      Go to step 3.     Replace the fuel
      1) Remove the fuel sub level sensor. 
      2) Measure the resistance between fuel sub
      level sensor terminals when setting the float to
      FULL and EMPTY position.
        Terminals
         No. 1 -- No. 2:
3     CHECK HARNESS BETWEEN FUEL SUB                     Is the resistance less than 10    Go to step 4.     Repair the wiring
      LEVEL SENSOR AND COMBINATION                       ?                                                   harness.
      METER.
      1) Disconnect the connector from combination
      meter.
      2) Measure the resistance between fuel sub
      level sensor harness connector terminal and
      combination meter harness connector termi-
      nal.
        Connector & terminal
         (R59) No. 1 -- (i11) No. 1:




                                                           IDI-7
                                 COMBINATION METER SYSTEM
INSTRUMENTATION/DRIVER INFO

                       Step                                          Check                      Yes                No
4      CHECK HARNESS BETWEEN FUEL LEVEL                 Is the resistance less than 10   Go to step 5.     Repair the wiring
       SENSOR AND FUEL SUB LEVEL SENSOR.                ?                                                  harness.
       Measure the resistance between fuel level sen-
       sor harness connector terminal and fuel sub
       level sensor harness connector terminal.
         Connector & terminal
          (R58) No. 3 -- (R59) No.2:
5      CHECK FUEL LEVEL SENSOR GROUND                   Is the resistance less than 10   Check the fuel    Repair the wiring
       CIRCUIT.                                         ?                                gauge. 
         Connector & terminal
          (R58) No. 2 -- Chassis ground:

7. CHECK ENGINE COOLANT TEMPERATURE SENSOR

                        Step                                        Check                     Yes                  No
1      CHECK ENGINE COOLANT TEMPERATURE                 Is the engine coolant tempera- Go to step 2.       Replace the
       SENSOR.                                          ture sensor OK?                                    engine coolant
       Check the engine coolant temperature sen-                                                           temperature sen-
       sor. 
2      CHECK HARNESS BETWEEN ENGINE                     Is the resistance less than 10   Go to step 3.     Repair the wiring
       COOLANT TEMPERATURE SENSOR AND                   ?                                                  harness.
       COMBINATION METER.
       1) Turn the ignition switch to OFF.
       2) Disconnect the connector from engine cool-
       ant temperature sensor and combination
       meter.
       3) Measure the resistance between engine
       coolant temperature sensor harness connector
       and combination meter harness connector.
        Connector & terminal
          (E8) No. 3 -- (i11) No. 10:
3      CHECK WATER TEMPERATURE GAUGE                    Is the resistance less than 10   Check the water Repair the wiring
       GROUND CIRCUIT.                                  ?                                temperature     harness.
       Measure the resistance between combination                                        gauge. 

8. CHECK OUTSIDE TEMPERATURE INDICATOR

                       Step                                     Check                           Yes                No
1      CHECK POWER SUPPLY FOR AMBIENT              Is the voltage more than 4 V?         Go to step 3.     Go to step 2.
       SENSOR.
       1) Turn the ignition switch to OFF.
       2) Disconnect the connector from outside
       temperature sensor.
       3) Turn the ignition switch to ON.
       4) Measure the voltage between outside tem-
       perature sensor harness connector terminal
       and chassis ground.
         Connector & terminal
          (F78) No. 2 (+) -- Chassis ground (-):




                                                          IDI-8
                              COMBINATION METER SYSTEM
                                                                                     INSTRUMENTATION/DRIVER INFO

                    Step                                         Check                        Yes                No
2   CHECK HARNESS BETWEEN AMBIENT                   Is the resistance less than 10    Replace the com-   Repair the wiring
    SENSOR AND COMBINATION METER.                   ?                                 bination meter     harness.
    1) Turn the ignition switch to OFF.                                               printed circuit.
    2) Disconnect the connector from combination
    meter.
    3) Measure the resistance between ambient
    sensor harness connector terminal and combi-
    nation meter harness connector terminal.
      Connector & terminal
       (F78) No. 1 -- (i10) No. 25:
       (F78) No. 2 -- (i10) No. 24:
3   CHECK AMBIENT SENSOR.                           Is the ambient sensor OK?         Go to step 4.      Replace the ambi-
    1) Remove the ambient sensor.                                                                        ent sensor.
    2) Check the ambient sensor. 
4   CHECK OUTSIDE TEMPERATURE INDICA-               Does the outside temperature Repair the poor       Replace the com-
    TOR.                                            indicator indicate 25



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