INSTALLATION PROCEDURE 1. INSTALL BACK SONAR OR CLEARANCE SONAR SWITCH ASSEMBLY
2. INSTALL NO. 2 SWITCH HOLE BASE 3. INSTALL LOWER INSTRUMENT PANEL FINISH PANEL SUB-ASSEMBLY LH 4. INSTALL COWL SIDE TRIM BOARD LH 5. INSTALL FRONT DOOR SCUFF PLATE LH 6. INSTALL INSTRUMENT SIDE PANEL LH |
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 ...
