Buick Regal 2018-2026 Service Manual / Transmission / Automatic Transmission - Aisin AF50-8 (MRC) / Repair Instructions - On Vehicle
Buick Regal: Repair Instructions - On Vehicle
- Gear Selector -N- Position Learn
- Connector Reconnection - Automatic Transmission
- Range Selector Lever Cable Replacement
- Range Selector Lever Cable Adjustment
- Transmission Control Lever Knob Replacement
- Vent Hose Replacement
- Input Speed Sensor Replacement
- Front Wheel Drive Shaft Seal Replacement - Left Side
- Wiring Harness Wire Replacement
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Gear Selector -N- Position Learn
Diagnostic Instructions
Perform the Diagnostic System Check prior to using this diagnostic
procedure: Refer to Diagnostic System
Check - Vehicle
Review the description of Strategy Based Diagnosi
Connector Reconnection - Automatic Transmission
Special Tools
EL-35616 Terminal Test Probe Kit
For equivalent regional tools, refer to Special Tools.
When the condition is not currently present, but is indicated in DTC history,
the cause may be in
Range Selector Lever Cable Replacement
Removal Procedure
1. Battery Tray - Remove - Refer to Battery Tray Replacement.
2.
Range Selector Lever Cable (4) @Range Selector Lever Cable Lever (3) -
Remove.
3. Range Selector Lever Cable@Trans
SEE MORE:
Transmission Fluid Cooler Flow Test and Flushing (AF50-8)
Special Tools
DT - 45096 TransFlow Cooler Flush Machine
DT - 45096 - 30 TransFlow Adapter
For equivalent regional tools, refer to Special Tools.
GM studies indicate that plugged or restricted transmission oil coolers and
pipes cause insufficient
transmission lubrication and elevated operating
DTC P0556, P0557, or P0558
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Refer to Diagnostic Procedure Instructions for an overview of each
diagnostic category.
DTC Descripto
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