Possible Causes
WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| (T77) SHIFT PRESSURE SOLENOID CONTROL CIRCUIT OPEN |
| (T77) SHIFT PRESSURE SOLENOID CONTROL CIRCUIT SHORT TO GROUND |
| (T77) SHIFT PRESSURE SOLENOID CONTROL CIRCUIT SHORT TO ANOTHER CIRCUIT |
| SHIFT PRESSURE SOLENOID |
| TRANSMISSION CONTROL MODULE |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to TRANSMISSION/TRANSAXLE/AUTOMATIC - NAG1 - STANDARD PROCEDURE)