ON-VEHICLE INSPECTION PROCEDURE 1. CHECK SEAT POSITION AIRBAG SENSOR (VEHICLE NOT INVOLVED IN COLLISION) (a) Perform a diagnostic system check (see page ). 2. CHECK SEAT POSITION AIRBAG SENSOR (VEHICLE INVOLVED IN COLLISION) (a) Perform a diagnostic system check (see page ). (b) Even if the airbag was not deployed, check if there is any damage to the seat position airbag sensor. If there are any defects as mentioned below, replace the seat position airbag sensor with a new one:
CAUTION: For removal and installation procedures of the seat position airbag sensor, be sure to follow the correct procedure. |
Toyota Tundra Service Manual > Sfi System: Brake Switch "A" / "B" Correlation (P0504)
DESCRIPTION The stop light switch is a duplex system that transmits two signals: STP and ST1-. These two signals are used by the ECM to monitor whether or not the brake system is working properly. If the signals, which indicate the brake pedal is being depressed and released, are detected simultaneo ...