P0686 Ford

Ford P0686 OBD-II Trouble Code Definition:

P0686 Engine Control Module Power Relay Control Circuit Low

P0686 Ford OBD-II Trouble CodeDescription:

OBD Trouble Code P0686
ECM/PCM Power Relay Control Circuit Low
What does the code mean? OBD-ii Code P0686 definition:
The Engine Control Module (ECM) has detected a low voltage condition to the ECM.
Symptoms Sumptoms of OBD code P0686
– Engine Light ON (or Service Engine Soon Warning Light)
Causes Causes of the OBD-II code P0686
– Weak battery- Low voltage while cranking – Poor engine control module electrical connection – Open or short engine control module circuit