DTC B2967 or DTC indicator J and AUTO: An Open in the Humidity Sensor Circuit
- Clear the DTC with the HDS.
- Turn the ignition switch to LOCK (0), and then 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 on the humidity sensor circuit.
- Turn the ignition switch to LOCK (0).
- Remove the humidity/in-car temperature sensor (see HUMIDITY/IN-CAR TEMPERATURE SENSOR REPLACEMENT
), and test it (see HUMIDITY/IN-CAR TEMPERATURE SENSOR TEST
).
Is the humidity sensor OK?
YES -With the humidity/in-car temperature sensor disconnected, go to step 7.
NO -Replace the humidity/in-car temperature sensor (see HUMIDITY/IN-CAR TEMPERATURE SENSOR REPLACEMENT ).
- 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. 12 No. 3
No. 19 No. 1
No. 35 No. 2
Fig 1: Checking Continuity Between Climate Control Unit 36P Connector Terminals And Humidity/In-Car Temperature Sensor 4P Connector TerminalsCourtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
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 -Repair an open in the wire(s) between the climate control unit and the humidity sensor.