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 > Sfi System: Catalyst System Efficiency Below Threshold (Bank 1) (P0420,P0430)
MONITOR DESCRIPTION The ECM uses sensors mounted in front of and behind the Three-Way Catalytic Converter (TWC) to monitor its efficiency. The first sensor, the Air-Fuel Ratio (A/F) sensor, sends pre-catalyst information to the ECM. The second sensor, the Heated Oxygen (HO2) sensor, sends post-catal ...

Toyota Tundra Owners Manual