Diagnostic Test
WARNING: This page is about a different car, the 2015 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK FOR AN ACTIVE DTC NOTE:
Diagnose all CAN B and C communication DTCs before continuing.
- Turn the ignition on.
- With the scan tool, read DTCs and record on the repair order.
Is the DTC active or pending?
Yes
- Go To 2
No
- Perform the INTERMITTENT DTC diagnostic procedure. Refer to INTERMITTENT DTC .
- TCM 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 TCM at this time?
Yes
- Replace and program the Transmission Control Module (TCM) in accordance with the Service Information.
- Perform the NAG1 TRANSMISSION VERIFICATION TEST. Refer to TRANSMISSION VERIFICATION TEST .
No
- Replace and program the Powertrain Control Module in accordance with the Service Information.
- Perform the PCM VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
- With the scan tool, select Network Diagnostics.