Circuit/System Verification
- Ignition ON, verify that no immobilizer or automatic transmission DTCs are set that would cause the ECM to disable engine starting.
- If any DTCs are set that would inhibit engine starting, refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Observe the ECM scan tool Starter Relay Circuit Status parameter(s). Verify that the scan tool does not display any circuit faults.