DTC B2967 (N and AUTO)

DTC B2967 or DTC indicator N and AUTO  : An Open in the Humidity Sensor Circuit

DTC (AC)

1. Problem verification

   - 1. Clear the DTC with the HDS.

   - 2. Turn the vehicle to the OFF (LOCK) mode then the ON mode.

   - 3. Do the Self-Diagnostic Function with the HDS or the climate control unit.

   - 4. Check for DTCs.

   DTC Description	DTC
   B2967 An open in the humidity sensor circuit

   Is DTC B2967 or N and AUTO indicated?

   YES 

   Go to step 2.

   NO 

   Intermittent failure. Check for loose wires or poor connections on the humidity sensor circuit.

2. Open wire check (SENSOR(COM) line)

   - 1. Turn the vehicle to the OFF (LOCK) mode.

   - 2. Disconnect the following connector.

   Humidity/in-car temperature sensor 4P connector

   - 3. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Humidity/in-car temperature sensor 4P connector: disconnected
   Test point 1	Humidity/in-car temperature sensor 4P connector No. 2
   Test point 2	Body ground

   Courtesy of HONDA, U.S.A., INC.

   Is there continuity?

   YES 

   The SENSOR(COM) wire is OK. Go to step 3.

   NO 

   Repair an open in the wire between the climate control unit and the humidity/in-car temperature sensor.

3. Open wire check (HUMID SENS line)

   - 1. Disconnect the following connector.

   Climate control unit connector A (32P)

   - 2. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Climate control unit connector A (32P): disconnected
   	Humidity/in-car temperature sensor 4P connector: disconnected
   Test point 1	Climate control unit connector A (32P) No. 21 - Refer to: Climate Control Unit Connector For Inputs and Outputs (2019 2020 2021), or Climate Control Unit Connector For Inputs and Outputs (2016 2017 2018)
   Test point 2	Humidity/in-car temperature sensor 4P connector No. 3

   Courtesy of HONDA, U.S.A., INC.

   Is there continuity?

   YES 

   The HUMID SENS wire is not open. Go to step 4.

   NO 

   Repair an open in the wire between the climate control unit and the humidity/in-car temperature sensor.

4. Shorted wire check (SENSOR 5V line to HUMID SENS line)

   - 1. Check for continuity between test points 1 and 2.

   Test condition	Vehicle OFF (LOCK) mode
   	Climate control unit connector A (32P): disconnected
   	Humidity/in-car temperature sensor 4P connector: disconnected
   Test point 1	Climate control unit connector A (32P) No. 5 - Refer to: Climate Control Unit Connector For Inputs and Outputs (2019 2020 2021), or Climate Control Unit Connector For Inputs and Outputs (2016 2017 2018)
   Test point 2	Climate control unit connector A (32P) No. 21 - Refer to: Climate Control Unit Connector For Inputs and Outputs (2019 2020 2021), or Climate Control Unit Connector For Inputs and Outputs (2016 2017 2018)

   Is there continuity?

   YES 

   Repair a short in the wires between the climate control unit and the humidity/in-car temperature sensor.

   NO 

   The SENSOR 5V wire to HUMID SENS wire is not shorted. Go to step 5.

5. Humidity sensor check

   - 1. Test the humidity sensor.

   Is the humidity sensor OK?

   YES 

   Replace the climate control unit .

   NO 

   Replace the humidity/in-car temperature sensor .