Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Echo 2000-2002 Approved techinfo.toyota.com ileaf 02toyrm 02toypdf 02rmsour 2002 02echorm di theft tailligh

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                                                                                                                          DI-427
                                               DIAGNOSTICS   -   THEFT DETERRENT SYSTEM
                                                                                                                            DI021-18




 Taillight Control Relay Circuit

CIRCUIT DESCRIPTION
When the theft deterrent system is activated, it causes the Tr in the ECU to switch ON and OFF at approxi-
mately 0.4 sec. intervals. This switches the taillight control relay ON and OFF, thus flashing the taillights (See
the wiring diagram below).
In this condition, if any of the following operations is done, the Tr in the ECU goes OFF and the taillight control
relay switches OFF, thus stopping the taillights flashing:
       (1) Unlock the front LH or RH door with a key.
       (2) Turn the ignition switch to IG or ON position.
       (3) Unlock the doors with the wireless door lock control system.
       (4) Wait for approximately 60 seconds.

WIRING DIAGRAM
                                                                                                              Theft Deterrent
                                           (*1) G-B                                                           ECU
              13                           (*1) G-W                  Taillight Relay                       11
                +B T      Light                                      1            2          G-B
                          Control                                                                          T6 TAIL
        OFF                            Instrument Panel J/B
                          Switch                                     3                5     G
        TAIL                         1        TAIL        4
        HEAD                        1C                   1M
                                                                 G-W                            9 1M
                10

                               (*1) B                                           Instrument
                               (*2) B-G                                         Panel J/B

                                     ALT                                                        9 1S
                               4                                                  J10 J/C        D G
              W-B                   FL Block

                                               Battery                      D G                  D G
                                                             R6             4     R7
                                                                                                 4
                                                             Taillight            Taillight
                                                             LH                   RH
                                                             (Rear Comb.          (Rear Comb.
                                                             Light LH)      6     Light RH)      6
                                                                                  W-B                W-B

                     IF     *1: Puerto Rico                                                        BI
                            *2: Except Puerto Rico

                                                                                                                                I13716




 2002 ECHO (RM884U)

                                                                           Author :                  Date :                 597
DI-428
                                            DIAGNOSTICS   -   THEFT DETERRENT SYSTEM

INSPECTION PROCEDURE
HINT:
The flow chart below is based on the premise that the taillights light up normally whenever the light control
switch is operated. If taillight operation is not normal when the light control switch is operated, proceed to
troubleshooting on page BE-2 .

   1      Check voltage between terminal TAIL of theft deterrent ECU connector and body
          ground.

                                                  PREPARATION:
         LOCK                                     (a) Remove the glove compartment door.
                                                  (b) Disconnect the theft deterrent ECU connector.
                                                  CHECK:
  Disconnect
                                                  Measure voltage between terminal TAIL of theft deterrent ECU
                                                  connector and body ground.
                                                  OK:
                           (+)     (-)
                                                       Voltage: 10 - 14 V
       TAIL
                                         I02922




                                                    NG        Check and repair harness and connector be-
                                                              tween theft deterrent ECU and taillight control
                                                              relay (See page IN-29 ).


   OK



  Check and replace theft deterrent ECU.




 2002 ECHO (RM884U)

                                                                     Author :          Date :            598



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