Circuit/System Verification

With the key ON, engine OFF, monitor the ignition 1 signal parameter with a scan tool. The ignition 1 signal parameter should display battery voltage.
If the vehicle passes the Circuit/System Verification Test, then operate the vehicle within the conditions for running the DTC. You may also operate the vehicle within the conditions that are captured in the Freeze Frame/Failure Records Data List. The other option is to refer to Testing for Intermittent Conditions and Poor Connections .