A Open In the Humidity Sensor Circuit

DTC B2967 or DTC indicator A and WINDSHIELD DEFROST: An Open in the Humidity Sensor Circuit

1. Clear the DTC with the HDS.
2. Turn the ignition switch to LOCK (0), and then ON (II).
3. Do the self-diagnostic with the HDS or climate control unit.
4. Check for DTCs.

Is DTC B2967 or A and WINDSHIELD DEFROST indicated?

YES - Go to step 5.

NO - Intermittent failure, check for loose wires or poor connections on the humidity sensor circuit.

5. Turn the ignition switch to LOCK (0).
6. Remove the humidity/in-car temperature sensor, and test it.

Is the humidity sensor OK?

YES - Go to step 7.

NO - Replace the humidity/in-car temperature sensor.

7. Disconnect the humidity/in-car temperature sensor 4P connector.
8. Disconnect climate control unit connector A (40P).
9. Check for continuity between the following terminals of climate control unit connector A (40P) and the humidity/in-car temperature sensor 4P connector.






Is there continuity?

YES - Check for loose wires or poor connections at climate control unit connector A (40P) and at the humidity/in-car temperature sensor 4P connector. If the connections are good, substitute a known-good climate control unit, and recheck. If the symptom/indication goes away, replace the original climate control unit.

NO - Repair open in the wire(s) between the climate control unit and the humidity sensor.