Honda HR-V: A/C Signal Circuit Troubleshooting
1. A/C compressor clutch condition check.
- Start the engine, and let it idle.
- Turn the blower switch on.
- Turn the A/C switch on.
- Check the parameter(s) below with the HDS.
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Do the current condition(s) match the threshold?
YES
Go to step 2.
NO
Do the A/C system test.
2. A/C system check.
- Check the A/C system.
Does the A/C system operate?
YES
The A/C system circuit is OK.
NO
Go to step 3.
3. A/C compressor clutch circuit check.
- Turn the vehicle to the OFF (LOCK) mode.
- Turn the vehicle to the ON mode.
- Activate the A/C CLUTCH in the INSPECTION MENU with the HDS.
A/C CLUTCH
Is there a clicking noise from the A/C compressor clutch?
YES
The A/C compressor clutch circuit is OK. Do the A/C system test.
NO
Go to step 4.
4. Open wire check (A/C MG CLUTCH RLY CL- line).
- Turn the vehicle to the OFF (LOCK) mode.
- Jump the SCS line with the HDS.
SCS Short
- Disconnect the following connector.
PCM connector A (51P)
- Turn the vehicle to the ON mode.
- Connect terminals A and B with a jumper wire.
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Is there a clicking noise from the A/C compressor clutch?
YES
The A/C MG CLUTCH RLY CL- wire is OK. Update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If the symptom/indication goes away and the PCM was updated, troubleshooting is complete. If the symptom/indication goes away and the PCM was substituted, replace the original PCM.
NO
Check for poor connections or loose terminals at the A/C compressor clutch relay and the PCM. If the connections and terminals are OK, check the A/C compressor clutch relay. If needed, repair an open in the A/C MG CLUTCH RLY CL- wire between the PCM (A12) and the A/C compressor clutch relay, or other parts in the A/C systems.
READ NEXT:
MIL Circuit Troubleshooting
1. Gauge control module check.
Turn the vehicle to the ON mode.
Do the gauge self-diagnostic function.
Does the MIL flash?
YES
Go to step 2.
NO
Substitute a known-good gauge control module, then r
PCM Power and Ground Circuit Troubleshooting
1. Engine starting check.
Try to start the engine.
Does the engine start and idle smoothly?
YES
Go to the F-CAN circuit troubleshooting.
NO
Go to step 2.
2. Fuse check.
Turn the vehicle to the OF
VTEC System Oil Pressure Troubleshooting
Special Tools Required
Pressure Gauge Adapter 07NAJ-P07010A
A/T Low Pressure Gauge w/Panel 07406-0070301
A/T Pressure Test Hose 07AAJ-PY4A100
A/T Pressure Adapter 07MAJ-PY40120
Oil Pressure Hose
SEE MORE:
DTC 2703 Aircon Diag
NOTE:
Check the vehicle 12 volt battery condition first.
This audio DTC sets when Connection NG is indicated in the Aircon
diagnosis (the A/C icon is red in the
System Links).
Check for B-CAN DTCs and resolve them before troubleshooting.
Before you troubleshoot, make sure to follow the Gener
Navigation System Diagnostic Mode
NOTE: The screens detail indicated may change depending on equipment or
specification.
Start-Up Procedure and Diagnostic Menu
NOTE: Check the vehicle 12 volt battery condition first.
1. Start the engine
2. At any screen except the HOME screen, use the audio-navigation unit
buttons:
NOTE: When HOME
