Transmission Control System

DTC P1520 STOP LIGHT SWITCH 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 depressed, this switch sends a signal to ECM. Then the ECM cancels operation of the lock-up clutch while braking is in progress.

Step 1 - 2:

Step 2 (Continued) - 3:

INSPECTION PROCEDURE