|Code||Fault Location||Probable Cause|
|P0686|| ECM/PCM power relay -circuit low |
(Buy Part On Amazon)
|Wiring short to earth, ECM/PCM power relay, ECM|
We recommend Torque Pro
Help Us Help You
Please comment below describing your issue as well as the specifics of your vehicle (make, model, year, miles, and engine), and one of our mechanics will respond as soon as possible. For an expedited response within 24 hours, we appreciate a $9.99 donation via the payment button below.
We have not gotten around to publishing a technical guide specifically for P0686 – ECM/PCM power relay -circuit low yet. To escalate the priority of this guide in our production queue, we appreciate a donation. We will publish a guide within 30 days of payment.