Honda HR-V: Climate Control Unit Power and Ground Circuit Troubleshooting
NOTE: Do this troubleshooting procedure only if sent here by symptom troubleshooting index - Refer to: Heating and A/C Systems Symptom Troubleshooting Index (Heating/Air Conditioning), or Climate Control System Symptom Troubleshooting Index (Climate Control).
1. Fuse check:
- Turn the vehicle to the OFF (LOCK) mode.
- Check the following fuse.
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Is the fuse OK?
YES
Go to step 2.
NO
Replace the fuse, and recheck. If the fuse blows again, repair a short in the No. C24 (7.5 A) fuse circuit.
2. Open wire check (IG2 A/C line):
- Disconnect the following connector.
Climate control unit connector A (32P)
- Turn the vehicle to the ON mode.
- Measure the voltage between test points 1 and 2.
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Is there battery voltage?
YES
The IG2 A/C wire is OK. Go to step 3.
NO
Repair an open in the wire between the No. C24 (7.5 A) fuse in the under-dash fuse/relay box and the climate control unit. If wire is OK, replace the under-dash fuse/relay box.
3. Open wire check (GND line):
- Turn the vehicle to the OFF (LOCK) mode.
- Check for continuity between test points 1 and 2.
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Is there continuity?
YES
The GND wire is OK. Replace the climate control unit.
NO
Check for an open in the wire between the climate control unit and body ground. If the wire is OK, check for poor ground at G403.
READ NEXT:
Connector for Inputs and Outputs
CLIMATE CONTROL UNIT CONNECTOR FOR INPUTS AND OUTPUTS
Climate Control Unit Connector A (32P)
Climate Control Unit Connector B (12P)*
*:Dual A/C type
Climate Control Unit Connector A (32P)
Climate
Disassembly and Reassembly
HVAC UNIT DISASSEMBLY AND REASSEMBLY
Exploded View
NOTE:
If the packings are damaged or torn, replace it with a new one.
For these operations, refer to the complete procedure as needed.
Air mix c
Overhaul
A/C COMPRESSOR CLUTCH OVERHAUL
Special Tools Required
A/C Compressor Kit 07AAF-
000A150
Exploded View
1. A/C Compressor Clutch - Exploded View
Exploded View
Fig. 20: Exploded View Of A/C Compressor
SEE MORE:
DTC Troubleshooting 81-20: Acceleration Sensor (Inside of Modulator-Control
Unit) Internal Circuit Malfunction
NOTE:
Before you troubleshoot, review the general troubleshooting information.
While doing this troubleshooting, avoid vibration or shaking of the
vehicle.
The yaw rate-acceleration sensor is built into the VSA modulator-control
unit.
Before troubleshooting, check the VSA modulator-control
DTC U1280 (Keyless Access Backup Control Unit) B-CAN Communication
Bus Line Error (BUS-OFF)
DTC (Backup Control Unit)
NOTE: If you are troubleshooting multiple DTCs, be sure to
follow the instructions in B-CAN System Diagnosis Test Mode A - Refer to: Body
Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial
Communication and DTC Checks.
1. Problem verification.
C
