Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-P064600

Condition




Engine control module (ECM) checks the signal for controlling the A/C relay. If engine control module (ECM) detects a signal that is too low, the control module interprets this as a malfunction and the diagnostic trouble code is generated.
The diagnostic trouble code can be diagnosed when the ignition is on.

Substitute value
- Nothing.

Possible source
- Short-circuit to ground in the signal cable.
- Open circuit on the voltage feed.
- Open circuit on the signal cable.
- Damaged A/C relay.

Fault symptom[s]
- A/C system does not work.