Possible Causes
WARNING: This page is about a different car, the 2016 Jeep Wrangler and 2015 Jeep Wrangler. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| (T72) SENSOR SUPPLY CIRCUIT OPEN |
| (T71) INPUT SPEED 2 (N3) SIGNAL CIRCUIT OPEN |
| (T71) INPUT SPEED 2 (N3) SIGNAL CIRCUIT SHORTED TO ANOTHER CIRCUIT |
| (T71) INPUT SPEED 2 (N3) SIGNAL CIRCUIT SHORTED TO GROUND |
| (T13) SPEED SENSOR GROUND CIRCUIT OPEN |
| (T13) SPEED SENSOR GROUND CIRCUIT SHORTED TO ANOTHER CIRCUIT |
| (T13) SPEED SENSOR GROUND CIRCUIT SHORTED TO GROUND |
| INPUT SPEED SENSOR 2 (N3) |
| TRANSMISSION CONTROL MODULE (TCM) |
Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to STANDARD PROCEDURE .