Toyota Tundra Service Manual: Parking Brake Switch

On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. REMOVE PARKING BRAKE SWITCH ASSEMBLY

2. CHECK PARKING BRAKE SWITCH ASSEMBLY

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

Standard resistance:

Tester Connection	Switch Condition	Specified Condition
1 - Switch body ground	Parking brake switch ON (Switch pin released)	Below 1 Ω
1 - Switch body ground	Parking brake switch OFF (Switch pin pushed in)	10 kΩ or higher

If the result is not as specified, replace the parking brake switch assembly.

3. INSTALL PARKING BRAKE SWITCH ASSEMBLY

Toyota Tundra Service Manual > Sfi System: Secondary Air Injection System Pump Stuck On Bank1 (P2444-P2447)
DESCRIPTION Refer to P2440 (See page ). DTC No. DTC Detection Condition Trouble Area P2444 P2446 Secondary air pressure more than 3.0 kPa (23 mmHg) despite ECM commanding air pump to turn off (2 trip detection logic) Short in air pump circuit Open or short in pressure sensor circuit Pressure sensor ...

Toyota Tundra Owners Manual