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                                                                                                                                       DI-225
                                                   DIAGNOSTICS      -   ANTI-LOCK BRAKE SYSTEM
                                                                                                                                         DI6SQ-02




 DTC                 C1249 / 49                           Stop Light Switch Circuit

CIRCUIT DESCRIPTION
   DTC No.                         DTC Detecting Condition                                                     Trouble Area
                  With IG1 terminal voltage at 8.5 V - 19 V, and when ABS is     S Stop light valve
  C1249 / 49       in non-operation stop light switch circuit is open for 0.3    S Stop light switch
                  sec. or longer.                                                S Stop light switch circuit


WIRING DIAGRAM


                                                                                                                                ABS Actuator
                                                                                                                                with ECU
                                                                         Instrument Panel J/B
                                     Stop Light Switch
                                                                        2                            1                        16
               G-B                    2               1    G-W                                                   G-W
                                                                        1B                           1B                       A4 STP



                    Instrument Panel J/B

               8             STOP               1                                                     3
                                                                                                                G-W
               1B                              1C                                                    1T



                          FL Block         B (*1)
                           ALT 4           B-G (*2)
                                                                         High Mounted
                                                                         Stop Light
                                                                                  1                                   C G-W
                                                  W-B                     2         1                  G-W
                                                                                                                 C


                                                                             Stop Light LH
                                                      W-B                  6            1       G-W
                                                                                                                 C


        Battery                                                              Stop Light RH
                                                               W-B           6          1        G-W
                                                                                                                 C
                    BG                       BI
                                                                                                                     J10 J/C
                                                                    *1: Puerto Rico
                                                                    *2: Except Puerto Rico
                                                                                                                                          F09223




2002 ECHO (RM884U)

                                                                                  Author :                         Date :                395
DI-226
                                       DIAGNOSTICS   -   ANTI-LOCK BRAKE SYSTEM

INSPECTION PROCEDURE

   1      Check operation of stop light.

CHECK:
Check that stop light lights up when brake pedal is depressed and turns off when brake pedal is released.

                                               NG        Repair stop light circuit (See page BE-37 ).


  OK



   2      Check voltage between terminal STP (16) of ABS ECU and body ground.

                                             PREPARATION:
                                             Disconnect ABS ECU connector.
                                             CHECK:
                                             Measure the voltage between terminal 16 of ABS ECU harness
         (+)                                 side connector and body ground when brake pedal is de-
                                             pressed.
                                             OK:
         (-)
                                                  Voltage: 10 - 14 V
                     16
                                    F08560




                                               OK        Check and replace ABS actuator assembly.


  NG



   3      Check for open circuit in harness and connector between ABS ECU and stop
          light switch (See page IN-29 ).


                                               NG        Repair or replace harness or connector.


  OK



  Check and replace ABS ECU.




2002 ECHO (RM884U)

                                                                Author :           Date :               396



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