DTC 58

id070200803700

DTC 58

Air mix actuator (motor lock) (past)

POSSIBLE CAUSE

• Air mix actuator malfunction
• A/C 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 D (or terminal F) and ground to terminal F (or terminal D) of air mix actuator connector.
• Does air mix actuator operate?
Yes
Connect air mix actuator connector, then go to Step 3.
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.
No
Replace air mix link and/or air mix crank.
3
• Disconnect climate control unit connect (12-pin).
• Connect battery positive voltage to terminal 2D (or terminal 2C) and ground to terminal 2C (or terminal 2D) of climate control unit connector (12-pin).
• Does air mix actuator operate?
Yes
Replace climate control unit.
No
Repair wiring harness.