Toyota Tundra Service Manual: On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT BRAKE PEDAL LOAD SENSING SWITCH

HINT:

Do not remove the brake pedal load sensing switch from the brake pedal support assembly.
When there is a malfunction in the brake pedal load sensing switch, replace the brake pedal support assembly.

(a) Disconnect the brake pedal load sensing switch connector.

Text in Illustration

*1	Brake Pedal Load Sensing Switch	-	-
*a	Brake pedal released (ON)	*b	Brake pedal depressed (OFF)

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
2 (FSW+) - 1 (FSW-)	Brake pedal depressed	900 to 1100 Ω
2 (FSW+) - 1 (FSW-)	Brake pedal released	192 to 234 Ω

Toyota Tundra Service Manual > Cruise Control System: Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Cruise Control System DTC No. Detection Item Link P0571 Brake Switch "A" Circuit P0575 Cruise Control Input Circuit P1578 Brake System Malfunction U0122 Lost Communication with Vehicle Dynamics Control Module ...

Toyota Tundra Owners Manual