Diagnostic Test

WARNING: This page is about a different car, the 2012 RAM Pickup and 2012 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

DETERMINE ACTIVE OR STORED DIAGNOSTIC TROUBLE CODE (DTC)
Is the DTC active or stored?

WIN - ACTIVE DTC
- Go To 2.
WIN - STORED DTC
- Refer to STANDARD PROCEDURE and perform the WIN VERIFICATION TEST.
VERIFY THE VEHICLE IDENTIFICATION NUMBER (VIN) STORED IN THE POWERTRAIN CONTROL MODULE (PCM).
1. Using the scan tool, access the VIN number stored in the PCM.
  NOTE:
  Make sure that a VIN has been programmed into the PCM. If a VIN is not displayed, attempt to program the PCM with the correct VIN before continuing.
2. Compare the VIN displayed, with the VIN of the vehicle.
  Does the VIN recorded in the PCM match the VIN of the vehicle?
  
  Yes
  - Using the scan tool, verify the VIN in the WIN matches the VIN of the vehicle. If it DOES, Go To 3 . If it does NOT match, replace the Wireless Ignition Node in accordance with the Service Information. Refer to RECEIVER, WIRELESS IGNITION NODE, REMOVAL . Prior to replacing the WIN, the RUN circuits must be checked at the PCM. A missing run circuit at the PCM can cause this DTC to set.
  - Replace the Wireless Ignition Node (WIN) in accordance with the Service Information. Refer to RECEIVER, WIRELESS IGNITION NODE, REMOVAL .
  - Refer to STANDARD PROCEDURE and perform the WIN VERIFICATION TEST.
  No
  - Using the scan tool, perform the PCM Replaced Procedure to update the VIN in the PCM. Then, Go To 3.
PCM STARTING DTCS
1. Use the scan tool and erase all DTCs in the WIN and PCM.
2. Turn the Ignition Off, and wait 15 seconds before turning the Ignition On.
3. Try to start the engine. If the engine starts, leave it run for one minute and then turn the engine off (ignition on)
4. Wait one minute, and read the active PCM DTCs.
  Does the scan tool display any Starting related DTCs?
  
  Yes
  - Refer to DIAGNOSTIC CODE INDEX for 3.7L/4.7L/5.7L or DIAGNOSTIC CODE INDEX for 6.7L and perform the appropriate Diagnostic Procedure.
  No
  - Go To 4.
VERIFY PCM PROGRAMMING
1. Use the scan tool and erase all DTCs in the WIN and PCM.
2. Turn the Ignition Off, and wait 15 seconds before turning the Ignition On.
3. Wait one minute, and read the active WIN DTCs.
  Does the scan tool display: B1A28-ECM MISMATCH WITH SKIM as active?
  
  Yes
  - Replace and program the Powertrain Control Module in accordance with the Service Information. Refer to MODULE, POWERTRAIN CONTROL, REMOVAL .
  - Refer to STANDARD PROCEDURE for 3.7L/4.7L/5.7L or STANDARD PROCEDURE for 6.7L and perform the POWERTRAIN VERIFICATION TEST.
  No
  - Repair is complete.
  - Refer to STANDARD PROCEDURE and perform the BODY VERIFICATION TEST.