Diagnostic Test
WARNING: This page is about a different car, the 2014 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.
- DTC IS ACTIVE NOTE:
If any Voltage Stability Module (VSM) DTCs are present in the Body Control Module, diagnose and repair those DTCs before continuing with this test procedure.
- Turn the ignition on.
- With the scan tool, erase DTCs.
- Cycle the ignition on and off several times, leaving the ignition on for at least 20 seconds during each ignition cycle.
- Turn the ignition on.
- Monitor the scan tool for at least two minutes.
- With the scan tool, view DTCs.
Is the DTC active?
Yes
- Go To 2
No
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to STANDARD PROCEDURE .
- CHECK FOR ANY ADD ON COMPONENTS TO THE VEHICLE
- Inspect the vehicle for any aftermarket equipment (I.E. Radio's, Amps, etc.) that may be drawing excessive current from the Voltage Stability Module (VSM).
Is there evidence of any aftermarket components on the vehicle?
Yes
- Remove the aftermarket components that are connected to the Voltage Stability Module circuit and recheck to see if the DTC is active. If DTC is still active, replace the appropriate Voltage Stability Module and perform the appropriate diagnostic procedure.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to STANDARD PROCEDURE .
No
- Replace the appropriate Voltage Stability Module (VSM) in accordance with the service information.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to STANDARD PROCEDURE .
- Inspect the vehicle for any aftermarket equipment (I.E. Radio's, Amps, etc.) that may be drawing excessive current from the Voltage Stability Module (VSM).