A and Windshield Defrost

DTC Troubleshooting: B2967 (A and WINDSHIELD DEFROST)

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 back to ON (II), or press the engine start/stop button to select the OFF mode and then the ON mode.

3. Do the Self-Diagnostic Function with the HDS or the 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), or press the engine start/stop button to select the OFF mode.

6. Remove the humidity/in-car temperature sensor Service and Repair, and test it Testing and Inspection.

Is the humidity sensor OK?

YES -

Go to step 7.

NO -

Replace the humidity/in-car temperature sensor Service and Repair.

7. Disconnect the humidity/in-car temperature sensor 4P connector.

8. Disconnect climate control unit connector C (20P).

9. Check for continuity between the following terminals of climate control unit connector C (20P) 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 C (20P) 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 Climate Control Unit Removal/Installation.

NO -

Repair an open in the wire(s) between the climate control unit and the humidity sensor.