07 Accord V6. AC clutch not engaging and condenser fan not coming on
#1
07 Accord V6. AC clutch not engaging and condenser fan not coming on
Cannot figure out why AC will not work. AC shows on on dash but compressor clutch does not engage and condenser fan does not come on. Blower works fine on all settings. Compressor, condenser, expansion, valve, drier, and AC pressure switch have all been replaced. System was vacuum and charged. Pressure is good. Can jump both the compressor clutch and condenser fan at the relay and both operate just fine. Any ideas?
#4
See attached circuit diagram. I did not have an 07 manual.
If no ground signal is arriving from ECM/PCM then either faulty ECM/PCM, wiring fault on inputs, faulty Relay Module, faulty Gauge Control Module, or fault on Climate Control board.
Difficult problem to diagnose w/o sophisticated Honda HDS.
Check for Ground pass-through at the Relay Module. Absence of ground would inhibit AC system.
good luck
If no ground signal is arriving from ECM/PCM then either faulty ECM/PCM, wiring fault on inputs, faulty Relay Module, faulty Gauge Control Module, or fault on Climate Control board.
Difficult problem to diagnose w/o sophisticated Honda HDS.
Check for Ground pass-through at the Relay Module. Absence of ground would inhibit AC system.
good luck
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