Toyota Tundra Service Manual: Actuator Check

Toyota Tundra Service Manual / Vehicle Interior / Air Conditioning / Air Conditioning System(for Automatic Air Conditioning System) / Actuator Check

ACTUATOR CHECK

1. ACTUATOR CHECK

(a) Turn the ignition switch ON while pressing the A/C control AUTO switch and Recirculation / Fresh switch simultaneously.

(b) Press the Recirculation / Fresh switch.

(c) As each damper, motor and relay automatically operate the actuator check at 1 second intervals from step No. 1 to No. 10 continuously, check the temperature and airflow visually and by hand.

HINT:

If a slower display is desired, press the driver temperature up switch and change the display in the step operation. Each time the driver temperature up switch is pressed, the display changes by 1 step.
The buzzer sounds when the displayed trouble code changes.
Codes are displayed from smaller to larger numbers in order.
To cancel the check mode, press the "OFF" switch.

Air conditioning unit

Step No.	Display Code	Condition
Step No.	Display Code	Blower Level	Air Mix Damper	Airflow Vent	Air Inlet Damper	Compressor
1	0	0	0% open	FACE	FRESH	OFF
2	1	1	0% open	FACE	FRESH	OFF
3	2	17	0% open	FACE	RECIRCULATION / FRESH	ON
4	3	17	0% open	FACE	RECIRCULATION	ON
5	4	17	50% open	B/L	RECIRCULATION	ON
6	5	17	50% open	B/L	RECIRCULATION	ON
7	6	17	50% open	FOOT	FRESH	ON
8	7	17	100% open	FOOT-0	FRESH	ON
9	8	17	100% open	F/D	FRESH	ON
10	9	31	100% open	DEF	FRESH	ON

Air Conditioning System(for Automatic Air Conditioning System)

Air Conditioning Compressor Magnetic Clutch Circuit

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