FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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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

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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.