P0685 Power Relay Control Circuit Open at mariajtorres blog

P0685 Power Relay Control Circuit Open. Check all the engine control module (ecm) fuses, if the fuses are ok, then replacing the ecm relay. if the pcm notices that the voltage signal from the relay indicates that the circuit is open when it shouldn’t be, a p0685 fault code will be.

[SOLVED] P0685 Code Fix Engine Control Module Power Relay Circuit Open!
from carmodnerd.com

Power is provided to the pcm by the relay circuit when the ignition is turned on. power relay control circuit. Weak battery with low voltage while cranking, faulty engine control module (ecm) power.

[SOLVED] P0685 Code Fix Engine Control Module Power Relay Circuit Open!

P0685 Power Relay Control Circuit Openthe fault code p0685 can be caused by:the fault code p0685 can be caused by: Weak battery with low voltage while cranking, faulty engine control module (ecm) power. learn what engine control module power relay control circuit open means, location and how to repair?