OBD-II Trouble Code Description for P0686 Dodge

ECM/PCM Power Relay Control Circuit Low

What does this mean?

OBD2 Code P0686 Dodge definition:
The Engine Control Module (ECM) has detected a low voltage condition to the ECM.

Symptoms

Possible sumptoms of OBD code P0686 Dodge
– Engine Light ON (or Service Engine Soon Warning Light)

Causes

Possible causes of OBD code P0686 Dodge
– Weak battery- Low voltage while cranking – Poor engine control module electrical connection – Open or short engine control module circuit

Possible Solutions