DTC 58

id070200803700

DTC 58

Air mix actuator (motor lock) system inspection

POSSIBLE CAUSE

•  Air mix actuator malfunction

•  A/C unit (air mix link and air mix crank) malfunction

•  Connector or terminal malfunction

•  Open circuit in wiring harness between A/C amplifier connector terminals 1U and 1V

•  Short to ground in wiring harness between A/C amplifier connector terminals 1U and 1V

DTC 58	Air mix actuator (motor lock) system inspection
POSSIBLE CAUSE	• Air mix actuator malfunction • A/C unit (air mix link and air mix crank) malfunction • Connector or terminal malfunction • Open circuit in wiring harness between A/C amplifier connector terminals 1U and 1V • Short to ground in wiring harness between A/C amplifier connector terminals 1U and 1V

Diagnostic Procedure

STEP	INSPECTION		ACTION
1	INSPECT AIR MIX ACTUATOR OPERATION • Disconnect the air mix actuator connector. • Connect battery positive voltage to air mix actuator terminal F (or terminal G) and ground to terminal G (or terminal F). • Does the air mix actuator operate?	Yes	Connect the connector, then go to Step 3.
1		No	Go to the next step.
2	INSPECT AIR MIX LINK OPERATION • Remove the air mix actuator. • Operate the air mix link manually. • Does the air mix link operate smoothly?	Yes	Replace the air mix actuator. (See AIR MIX ACTUATOR REMOVAL/INSTALLATION [FULL-AUTO AIR CONDITIONER].)
2		No	Replace the air mix link and the air mix crank.
3	INSPECT AIR MIX ACTUATOR CIRCUIT FOR OPEN CIRCUIT OR SHORT TO GROUND • Disconnect the A/C amplifier connector (24-pin). • Connect battery positive voltage to A/C amplifier connector (24-pin) terminal 1V (or terminal 1U) and ground to terminal 1U (or terminal 1V). • Does the air mix actuator operate?	Yes	Inspect the connection at the A/C amplifier connector (24-pin).
3		No	Repair the wiring harness.