What does code P0687 mean?

ECM/PCM Power Relay Control Circuit High: The ECM power relay control circuit has high voltage.

P0687 is rated as high severity. Address soon — may cause further damage.

P0687

ECM/PCM Power Relay Control Circuit High

Powertrain Code · High

What does P0687 mean?

The ECM power relay control circuit has high voltage.

System: ECU

P0687 is a powertrain diagnostic trouble code indicating ecm/pcm power relay control circuit high. This code is classified as high severity, which means: address soon — may cause further damage.

Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your vehicle.