Transmission Code
P2775-AUTOSTICK UPSHIFT SWITCH CIRCUIT PERFORMANCE - LXTheory of Operation
The AutoStick Switch is integrated into the Shift Lever Assembly. The gear requested by the AutoStick selection in then sent over the CAN C bus to the TCM to engage the requested gear.
- When Monitored:
When in AutoStick mode.
- Set Condition:
When the expected switch state is not correctly sensed by the Shift Lever Assembly. If the upshift switch signal is detected as active in gear position other than drive or both upshift and downshift signals are active at the same time.
Possible Causes
- SHIFTER LEVER ASSEMBLY
Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. NAG1 Automatic Transmission
1. SHIFTER LEVER ASSEMBLY
View repair
Repair
Using the schematics as a guide, check the Shifter Lever Assembly Control Module 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.
Perform NAG1 TRANSMISSION VERIFICATION TEST VER 1. NAG1 Transmission Verification Test