Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota 4Runner 1996-2003 Approved SIL techinfo.toyota.com ileaf 02toyrm 02toypdf 02rmsour 2002 024runne di at cip1520

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                                                                                                                              DI-195
                                                  DIAGNOSTICS        -   AUTOMATIC TRANSMISSION
                                                                                                                               DI0SY-07




    DTC                P1520                Stop Light Switch Circuit Malfunction

CIRCUIT DESCRIPTION
The purpose of this circuit is to prevent the engine from stalling, while driving in lock-up condition, when
brakes are suddenly applied.
When the brake pedal is operated, this switch sends a signals to ECM. Then the ECM cancels operation
of the lock-up clutch while braking is in progress.
   DTC No.                      DTC Detecting Condition                                                    Trouble Area
                                                                                S Short in stop light switch signal circuit
             The stop light switch does not turn off even once the vehicle is
   P1520                                                                        S Stop light switch
             driven (2 trip detection logic).
                                                                                S ECM


WIRING DIAGRAM
See page DI-144 .

INSPECTION PROCEDURE
See page DI-144 .




 2002 4RUNNER (RM887U)

                                                                                 Author :                        Date :        371



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