Diagnostic Test

WARNING: This page is about a different car, the 2023 Jeep Grand Wagoneer L and 2023 Jeep Grand Wagoneer. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DTC

Attempt to crank the engine, leaving the ignition on.
With the scan tool, read DTCs and record on the repair order.
Did the DTC return?

Yes
- Refer to DIAGNOSTIC CODE INDEX and perform the appropriate Starter Relay diagnostic procedure.
No
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION .