Diagnostic Test
WARNING: This page is about a different car, the 2014 RAM 3500 HD and 2014 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
- ACTIVE DTC NOTE:
If there are any CAN Bus related DTCs present, perform the Diagnostics for those DTCs before continuing with this one.
NOTE:If DTCs P2633, P2634, or P2636 are present, perform the Diagnostics for those DTCs before continuing with this one.
- Turn the ignition on.
- With the scan tool, record all Freeze frame data.
- With the scan tool, erase DTCs.
- Turn the ignition off for 75 seconds.
- Turn the ignition on.
- With the scan tool, read DTCs.
Did the DTC reset?
Yes
- Go To 2
No
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT CONDITION - 6.7L .
- POWERTRAIN CONTROL MODULE
- Using the scan tool, monitor the Fuel Pump 2 Relay status while starting and shutting off the engine several times.
Did Fuel Pump 2 Relay status switch between On and Off when starting and shutting off the engine?
Yes
- Replace the Body Control Module in accordance with the service information.
- Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
No
- Replace and program the Powertrain Control Module in accordance with the service information. Refer to REMOVAL .
- Perform he POWERTRAIN VERIFICATION TEST - 6.7L. Refer to POWERTRAIN VERIFICATION TEST - 6.7L .
- Using the scan tool, monitor the Fuel Pump 2 Relay status while starting and shutting off the engine several times.