P0685 Honda -

Question

2005 CR-V Engine light come on once in a while at start up and stays on until car is turned off. It doesn't always come back on when started again. Runs normally whether the engine light is on or not. Do I need to replace pcm? Or what else should I consider doing first?

Answer 1

HI there

This could indicate a problem with the ecm relay, so check there and the wiring to the ecm. If that's all good you will likely need to replace the ecm.

P0685 HONDA - Engine Control Module Power Relay Control Circuit Open

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