DTC 58


id070200803700

DTC 58

Driver-side front air mix actuator (motor lock) (past)

POSSIBLE CAUSE
•  Driver-side front air mix actuator malfunction
•  Front A/C unit (air mix link and/or air mix crank) malfunction
•  Open or short circuit between driver-side front air mix actuator and front climate control unit

Diagnostic Procedure

STEP

INSPECTION

ACTION

1
•  Disconnect the driver-side front air mix actuator connector.
•  Connect battery positive voltage to terminal F (or terminal G) and ground to terminal G (or terminal F) of driver-side front air mix actuator connector.
•  Does driver-side front air mix actuator operate?
Yes
Connect driver-side front air mix actuator connector, then go to Step 3.
No
Go to the next step.
2
•  Remove driver-side front air mix actuator. (See FRONT AIR MIX ACTUATOR REMOVAL/INSTALLATION.)
•  Operate air mix link by hand.
•  Does air mix link operate smoothly?
Yes
Replace driver-side front air mix actuator.
No
Replace air mix link and/or air mix crank.
3
•  Disconnect climate control unit connect (24-pin).
•  Connect battery positive voltage to terminal 1F (or terminal 1A) and ground to terminal 1A (or terminal 1F) of front climate control unit connector (24-pin).
•  Does driver-side front air mix actuator operate?
Yes
Inspect the connection of the front climate control unit connector.
No
Repair wiring harness.