Diagnostic Test
WARNING: This page is about a different car, the 2015 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- FUEL LEVEL SENSOR CIRCUIT DTCS SET IN THE TIPM NOTE:
Diagnose and repair any CAN BUS, communication or implausible signal DTCs before proceeding with this test.
- Turn the ignition on.
- With the scan tool, View BCM DTCs.
Are any Fuel Level Sensor Circuit DTCs set in the BCM?
Yes
- Diagnose the appropriate Fuel Level Sensor Circuit DTC in the BCM. Refer to BODY CONTROL MODULE (BCM) - DIAGNOSTIC CODE INDEX - 2500 HD & 3500 HD article.
No
- Go To 2
- BCM COMMUNICATION RELATED DTCs IN OTHER MODULES
- With the scan tool, select Network Diagnostics.
Is there more than one module with active DTCs "Logged Against" the BCM at this time?
Yes
- Replace and program the Body Control Module in accordance with the service information.
- Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
No
- Replace and program the Powertrain Control Module in accordance with the service information. Refer to MODULE, POWERTRAIN CONTROL, REMOVAL . Refer to PCM/ECM REPROGRAMMING - GAS .
- Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
- With the scan tool, select Network Diagnostics.