Circuit/System Verification
IMPORTANT:
On the scan tool, the powertrain relay is referred to as the EC ignition relay.
- If DTCs P0685, P0689, P0690, or B1380 are set, diagnose those DTCs first.
- Ignition ON, engine OFF, observe the Ignition 1 voltage signal, and the EC Ignition Relay Feedback signal parameters, on the scan tool. Both parameter values should display no more than 3 volts difference, between the two parameters.
- If the vehicle passes the Circuit/System Verification test, 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.