Possible Causes
WARNING: This page is about a different car, the 2019 RAM 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| IGNITION OFF/RUN/START CONTROL OUTPUT (F1) TO TRANSMISSION RANGE SWITCH (TRS) CIRCUIT OPEN |
| IGNITION OFF/RUN/START CONTROL OUTPUT (F1) TO TRANSMISSION RANGE SWITCH (TRS) CIRCUIT SHORTED TO GROUND |
| (T1, T3, T4, OR T42) TRS SIGNAL CIRCUIT OPEN |
| (T1, T3, T4, OR T42) TRS SIGNAL CIRCUIT SHORTED TO GROUND |
| (T1, T3, T4, OR T42) TRS SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| TRANSMISSION RANGE SWITCH (TRS) |
| TRANSMISSION CONTROL MODULE (TCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .