Error code
OBD2 P0647
OBD2P0647
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
A/C Clutch Relay Control Circuit High.
Severity
moderateCan drive but may experience air conditioning issues.
Summary
P0647 indicates an issue with the AC compressor clutch relay control circuit being too high, likely due to wiring problems near the AC compressor.
Common Causes
- Wiring short to positive
Fixes
- Repair or replace the faulty wiring near the AC compressor clutch relay.
FAQ
What does P0647 mean?
P0647 indicates a problem with the control circuit for the AC compressor clutch relay, specifically that it is too high.
How do I fix P0647?
The issue can be addressed by repairing or replacing any faulty wiring near the AC compressor clutch relay.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
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