DTC S2.1

id070200811100

DTC S2.1

Air mix actuator (motor lock)

POSSIBLE CAUSE

•  Air mix actuator malfunction

•  Heater unit (air mix link and/or air mix crank) malfunction

•  Climate control unit malfunction

•  Open or short circuit between air mix actuator and climate control unit

DTC S2.1	Air mix actuator (motor lock)
POSSIBLE CAUSE	• Air mix actuator malfunction • Heater unit (air mix link and/or air mix crank) malfunction • Climate control unit malfunction • Open or short circuit between air mix actuator and climate control unit

Diagnostic Procedure

STEP	INSPECTION		ACTION
1	• Disconnect air mix actuator connector. • Connect battery positive voltage to terminal A (or terminal F) and ground to terminal F (or terminal A) of air mix actuator connector. • Does air mix actuator operate?	Yes	Connect air mix actuator connector, then go to Step 3.
1		No	Go to the next step.
2	• Remove air mix actuator. • Operate air mix link by hand. • Does air mix link operate smoothly?	Yes	Replace air mix actuator. (See AIR MIX ACTUATOR REMOVAL/INSTALLATION.)
2		No	Replace air mix link and/or air mix crank.
3	• Disconnect climate control unit connector. • Connect battery positive voltage to terminal K (or terminal L) and ground to terminal L (or terminal K) of climate control unit connector. • Does air mix actuator operate?	Yes	Replace climate control unit. (See CLIMATE CONTROL UNIT REMOVAL/INSTALLATION.)
3		No	Repair wiring harness.