P1C85
P1C85-2A-SHIFT LEVER-STUCK
For a complete wiring diagram Refer to the Wiring Information.
Theory of Operation
The AutoStick(R) switch is integrated into the Shift Lever Assembly (SLA). The gear requested by the AutoStick(R) selection is sent over the CAN C BUS to the Transmission Control Module (TCM) to engage the requested gear.
- When Monitored:
Continuously with the ignition in the run position.
- Set Condition:
When the expected switch state is not correctly sensed by the Electronic Shift Module (ESM).
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. 8HP45 Pre-Diagnostic Troubleshooting Procedure
SHIFT LEVER ASSEMBLY
View repair
Repair
- Using the schematics as a guide, check the Shift Lever Assembly (SLA) Electronic Shift Module (ESM) terminals for corrosion, damage or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace the Shift Lever Assembly. Transmission Shifter - Removal.
- Perform the TRANSMISSION VERIFICATION TEST. Verification Tests.