P0689

ECM/PCM Power Relay Sense Circuit Low

Powertrain Code · High

What does P0689 mean?

The ECM power relay sense circuit has low voltage.

System: ECU

P0689 is a powertrain diagnostic trouble code indicating ecm/pcm power relay sense circuit low. 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.