Programmed 2010-2011 Equinox Engine Control Module ECM 12650256

There were no consistent trouble codes, just a random U0100 (Lost Communication with ECM) that would pop up now and then. After verifying the power and ground circuits to the ECM were solid—a critical first step I always perform—I suspected the module itself.

Programmed 2010-2011 Equinox Engine Control Module ECM 12650256

There were no consistent trouble codes, just a random U0100 (Lost Communication with ECM) that would pop up now and then. After verifying the power and ground circuits to the ECM were solid—a critical first step I always perform—I suspected the module itself.

Programmed 2010-2011 Equinox Engine Control Module ECM 12650256

There were no consistent trouble codes, just a random U0100 (Lost Communication with ECM) that would pop up now and then. After verifying the power and ground circuits to the ECM were solid—a critical first step I always perform—I suspected the module itself.