P0647 is set when excessive current is detected in Aircon relay control circuit for more than 1 sec. This code is due to short to battery in Aircon relay control circuit or internal short in relay component.
Item | Detecting Condition | Possible Cause | ||
DTC Strategy |
•
Voltage monitoring |
•
A/C relay circuit
•
A/C relay component | ||
Enable Conditions |
•
IG KEY "ON" | |||
Threshold Value |
•
Short to battery | |||
Diagnostic Time |
•
1.0 sec. | |||
Fail Safe | Fuel Cut | NO | ||
EGR Off | NO | |||
Fuel Limit | NO | |||
MIL | NO | |||
