Toyota Tundra Service Manual: Inspection

INSPECTION

PROCEDURE

1. INSPECT AIR CONDITIONING CONTROL ASSEMBLY (HAZARD WARNING SWITCH)

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

Standard Resistance:

Tester Connection	Switch Condition	Specified Condition
1 (HAZ) - 5 (GND)	Hazard warning switch off	10 kΩ or higher
1 (HAZ) - 5 (GND)	Hazard warning switch on	Below 1 Ω

If the result is not as specified, replace the air conditioning control assembly (hazard warning switch).

Text in Illustration

*a	Component without harness connected (Air Conditioning Control Assembly (Hazard Warning Switch))

Toyota Tundra Service Manual > Air Conditioning System(for Automatic Air Conditioning System): Air Inlet Damper Control Servo Motor Circuit (B1442/42)
DESCRIPTION The air inlet damper servo motor sends pulse signals to inform the air conditioning amplifier of the damper position. The air conditioning amplifier activates the motor (normal, reverse) based on the signals to move the air inlet damper to any position, which controls the intake air sett ...

Toyota Tundra Owners Manual