Honda CR-V: Recirculation Control Motor Circuit Troubleshooting

1. Check the No. 36 (10 A) fuse in the under-dash fuse/ relay box.

Is the fuse OK? YES-Go to step 2.

NO-Replace the fuse, and recheck. If the fuse blows again, check for a short in the No. 36 (10 A) fuse circuit.

2. Disconnect the recirculation control motor 7P connector.

3. Turn the ignition switch ON (II).

4. Measure the voltage between the recirculation control motor 7P connector terminal NO.1 and body ground.

Honda CR-V. HVAC (Heating, Ventilation, and Air Conditioning)

Is there battery voltage? YES-Go to step 5.

NO-Repair open in the wire between the No. 36 (10 A) fuse in the under-dash fuse/relay box and the recirculation control motor.

5. Turn the ignition switch OFF.

6. Test the recirculation control motor.

Is the recirculation control motor OK? YES-Go to step 7.

NO-Replace the recirculation control motor, or repair the recirculation control linkage or door.

7. Disconnect the HVAC control unit 28P connector.

8. Check for continuity between body ground and the HVAC control unit 28P connector terminals No. 21 and No. 22 individually.

Honda CR-V. HVAC (Heating, Ventilation, and Air Conditioning)

Is there continuity? YES-Repair short to body ground in the wire(s) between the HVAC control unit and the recirculation control motor.

NO-Go to step 9.

9. Turn the ignition switch ON (II), and check the same terminals for voltage to body ground.

Honda CR-V. HVAC (Heating, Ventilation, and Air Conditioning)

Is there any voltage? YES-Repair short to power in the wire(s) between the HVAC control unit and the recirculation control motor. This short may also damage the HVAC control unit. Repair the short to power before replacing the HVAC control unit.

NO-Go to step 10.

10. Turn the ignition switch OFF.

11. Check for continuity between the following terminals of the HVAC control unit 28P connector and the recirculation control motor 7P connector.

28P:
No.21
No.22

7P:
No.7
No.5

Honda CR-V. HVAC (Heating, Ventilation, and Air Conditioning)

Is there continuity? YES-Check for loose wires or poor connections at the HVAC control unit 28P connector and at the recirculation control motor 7P connector. If the connections are good, substitute a known-good HVAC control unit, and recheck. If the symptom/ indication goes away, replace the original HVAC control unit.

NO-Repair open in the wire(s) between the HVAC control unit and the recirculation control motor.

HVAC Control Power and Ground Circuit Troubleshooting

1. Check the No. 36 (10 A) fuse in the under-dash fuse/ relay box.

Is the fuse OK? YES-Go to step 2.

NO-Replace the fuse, and recheck. If the fuse blows again, check for a short in the No. 36 (10 A) fuse circuit.

2. Disconnect the HVAC control unit 28P connector.

3. Turn the ignition switch ON (II).

4. Measure the voltage between the HVAC control unit 28P connector terminal No. 27 and body ground.

Honda CR-V. HVAC (Heating, Ventilation, and Air Conditioning)

Is there battery voltage? YES-Go to step 5.

NO-Repair open in the wire between the No. 36 (10 A) fuse in the under-dash fuse/relay box and the HVAC control unit.

5. Turn the ignition switch OFF.

6. Check for continuity between the HVAC control unit 28P connector terminal No. 18 and body ground.

Honda CR-V. HVAC (Heating, Ventilation, and Air Conditioning)

Is there continuity? YES-Check for loose wires or poor connections at the HVAC control unit 28P connector. If the connections are good, substitute a known-good HVAC control unit, and recheck.

NO-Check for an open in the wire between the HVAC control unit and body ground. If the wire is OK, check for poor ground at G503.

READ NEXT:

 Radiator and A/C Condenser Fan Low Speed Circuit Troubleshooting

NOTE: Do not use this troubleshooting procedure if the A/C compressor is inoperative. Refer to the symptom troubleshooting index. Before doing symptom troubleshooting, check for powertrain DTCs.

 A/C Condenser Fan High Speed Circuit Troubleshooting

NOTE: Do not use this troubleshooting procedure if the radiator fan and/or A/C compressor is inoperative. Refer to the symptom troubleshooting index. Before doing symptom troubleshooting, check

 A/C Signal Circuit Troubleshooting

NOTE: Use this troubleshooting procedure if the A/C compressor, the A/C condenser fan, and radiator fan are inoperative. Before doing symptom troubleshooting, check for and resolve any powertrai

SEE MORE:

 Close and Lock the Doors.

After everyone has entered the vehicle, be sure the doors and the tailgate are closed and locked. Your vehicle has a door and tailgate open indicator on the instrument panel to indicate when a specific door or the tailgate is not tightly closed. Locking the doors reduces the chan

 Driver's Airbag Replacement

Removal 1. Disconnect the negative cable from the battery and wait at least 3 minutes before beginning work. 2. Remove the access panel (A) from the steering wheel, then disconnect the driver's airbag 4P connector (B) and horn switch 1P connector (C) from the cable reel. 3. Using a TORX T30 bit, r

© 2016-2025 Copyright www.hcrv.net