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DTC 58

BHE070201038W17

DTC 58 | Air mix actuator (motor lock) system inspection
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POSSIBLE CAUSE | • Air mix actuator malfunction • A/C unit (air mix link and air mix crank) malfunction • Open or short circuit in wiring harness between A/C amplifier and air mix actuator

Diagnostic Procedure

STEP | INSPECTION | ACTION
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1 | • 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.
No | Go to the next step.
2 | • 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.)
No | Replace the air mix link and the air mix crank.
3 | • 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). (See A/C AMPLIFIER INSPECTION [FULL-AUTO AIR CONDITIONER].)
No | Repair the wiring harness.