DTC B2967 or DTC indicator J and AUTO: An Open in the Humidity Sensor Circuit
- Clear the DTCs with the HDS.
- Turn the ignition switch to LOCK (0) and then back to ON (II).
- Do the self-diagnostic function with the HDS (see HOW TO USE THE SELF-DIAGNOSTIC FUNCTION WITH THE HDS ) or the climate control unit (see HOW TO USE THE SELF-DIAGNOSTIC FUNCTION WITHOUT THE HDS ).
- Check for DTCs.
Is DTC B2967 or J and AUTO indicated?
YES -Go to step 5.
NO -Intermittent failure, check for loose wires or poor connections in the humidity sensor circuit.
- Turn the ignition switch to LOCK (0).
- Disconnect the climate control unit 36P connector.
- Disconnect the humidity/in-car temperature sensor 4P connector and air mix control motor 7P connector.
- Check for continuity between the following terminals of the climate control unit 36P connector and the humidity/in-car temperature sensor 4P connector.
36P: 4P:
No. 1 No. 2
No. 3 No. 4
No. 24 No. 3
Fig 1: Checking Continuity Between Terminals Of Climate Control Unit 36P Connector And Humidity/In-Car Temperature Sensor 4P ConnectorCourtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES -Go to step 9.
NO -Repair an open in the wires between the climate control unit and the humidity sensor.
- Reconnect the humidity/in-car temperature sensor 4P connector.
- Reconnect the climate control unit 36P connector.
- Test the humidity sensor (see HUMIDITY/IN-CAR TEMPERATURE SENSOR TEST ).
Is the humidity sensor OK?
YES -Check for loose wires or poor connections at the climate control unit 36P connector 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 (see CLIMATE CONTROL UNIT REMOVAL/INSTALLATION ).
NO -Replace the humidity/in-car temperature sensor (see HUMIDITY/IN-CAR TEMPERATURE SENSOR REPLACEMENT ).