CAR OBD CODES

P0686 OBD Code Definition:
P0686 Engine Control Module Power Relay Control Circuit Low
P0686 OBD Code Description:

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

Possible sumptoms of P0686
– Engine Light ON (or Service Engine Soon Warning Light) Possible Causes

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

Note: The information on the P0686 error code is purely informative, if you need more useful information, please consult your technician.