DTC B1712[71] Rear Ventilation Duct Actuator: Operation Failure (Lock) (Auto A/C)

1. Auto A/C control system check

Refer to "57.HVAC Control 7A.Troubleshooting(Auto A/C) diagnostic system check-auto A/C controls".

2. Rear ventilation duct actuator inspection

1) Inspect the rear ventilation duct actuator. Is the result normal?

Yes

=>Go to Rear ventilation duct actuator wire harness and connector inspection.

No

Replace the rear ventilation duct actuator.

Refer to "7.HVAC 7B.Heater Ventilator Airconditioner actuator removal".

Refer to "7.HVAC 7B.Heater Ventilator Airconditioner actuator installation".

=>Go to Repair verification.

3. Rear ventilation duct actuator wire harness and connector inspection

1) Turn OFF the ignition switch.

2) Disconnect the auto A/C control unit harness connector (B10) and rear ventilation duct actuator harness connector (B60).

3) Inspect the wire harnesses and connectors for the following. Is the result normal?

Wire harness to be inspected

Inspection items

Refer to "LHD HVAC (Automatic Air Conditioner)" in the ETM (wiring diagram). (Open using the ETM viewer.).

Refer to "RHD HVAC (Automatic Air Conditioner)" in the ETM (wiring diagram). (Open using the ETM viewer.).

Yes

=>Go to Control panel replacement.

No

Repair the circuit as necessary.

=>Go to Repair verification.

4. Control panel replacement

Refer to "7.HVAC 7B.Heater Ventilator Airconditioner control panel and control lever removal".

Refer to "7.HVAC 7B.Heater Ventilator Airconditioner control panel and control lever installation".

Refer to "7.HVAC 7B.Heater Ventilator Airconditioner control panel and control lever setting".

Procedure completion

=>Go to Repair verification.

5. Repair verification

1) Clear the DTC with a scan tool.

2) Turn OFF the ignition switch.

3) Turn ON the ignition switch.

4) Observe the DTC information with a scan tool.