Diagnostic Test

WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.

CHECK FOR AN ACTIVE DTC

Start the engine and allow it to idle.
Using the scan tool, read DTCs.
Is this DTC active or pending?

Yes
- Replace the Alternator in accordance with the service information. Refer to GENERATOR, REMOVAL .
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
No
- Perform the INTERMITTENT DTC diagnostic procedure. Refer to POWERTRAIN VERIFICATION TEST .