Buick Regal: 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 Diagnosis: Refer to Strategy Based Diagnosis
Description
- For an overview of the component/system, refer to Electronic Component Description
- This procedure triggers the control module to learn the values of the component:
When to Perform the Procedure
NOTE: Failure to perform this procedure may result in poor system performance, DTCs being set, or customer dissatisfaction.
This procedure is required when the following component has been repaired, replaced, removed, or serviced:
- K71 Transmission Control Module
- T12 Automatic Transmission Assembly
Conditions for Running the Procedure
- Transmission Range=Neutral
- Park Brake=Applied
- Drive Wheels=Blocked
Reference Information
Scan Tool: Reference
Refer to Control Module: References
With Scan Tool
1. Ignition - On / Vehicle - In Service Mode.
2. Select:Module Diagnostics.
3. Select:Transmission Control Module.
4. Select:Configuration/Reset Functions.
5. Select:Gear Selector -N- Position Learn.
6. Follow the instructions on the scan tool.
7. All OK.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the repair: Refer to Diagnostic Repair Verification
For control module replacement, programming, and setup: Refer to Control Module: References
LEARNED VALUES RESET
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 Diagnosis:Strategy Based Diagnosis
Description
For an overview of the component/system, refer to Electronic Component Description
This procedure resets the control module learned values of the component/system:K71 Transmission Control Module
When to Perform the Procedure
NOTE: Failure to perform this procedure may result in poor system performance, DTCs being set, or customer dissatisfaction.
This procedure is required when the following component has been repaired, replaced, removed, or serviced:
- K71 Transmission Control Module
- T12 Automatic Transmission Assembly
Conditions for Running the Procedure
Transmission Fluid Temperature=50 to 80ºC (122 to 176ºF)
Reference Information
Scan Tool: Reference
Refer to Control Module: References
With Scan Tool
1. Ignition - On / Vehicle - In Service Mode.
2. Select:Module Diagnostics.
3. Select:Transmission Control Module.
4. Select:Configuration/Reset Functions.
5. Select:Learned Values Reset.
6. Follow the instructions on the scan tool.
7. Perform the following steps:
- Engine=Running
- Move the selector lever from N to D and wait 5 s in each range. Then move the selector lever back to N.
- Move the selector lever from N to R and wait 5 s in each range. Then move the selector lever back to N.
NOTE: Step 5, 6, 7 requires the vehicle to be driven on the road. Do NOT use manual mode function to perform the following steps:
- Transmission=Drive
- From a stop, accelerate to 72 km/h (45 MPH) with the throttle position between 15 and 25%.
- From a stop, accelerate to 72 km/h (45 MPH) with the throttle position between 45 and 55%.
- From a stop, accelerate to 72 km/h (45 MPH) with the throttle position greater than 70%.
- Ignition=Off - For greater than 2 min
- From a stop, accelerate until the transmission reaches gear 8 and then coast down to a stop. - More than 10 times.
8. All OK.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the repair: Refer to Diagnostic Repair Verification
For control module replacement, programming, and setup: Refer to Control Module: References
READ NEXT:
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
Range Selector Lever Cable Adjustment
Removal Procedure
1. Battery Tray - Remove - Refer to Battery Tray Replacement.
Adjustment Procedure
1.
Push the secure ring (1) against the spring force forwards.
2. Lift the range selector lever c
SEE MORE:
Engine Exhaust
Warning:
Engine exhaust contains carbon
monoxide (CO), which cannot be
seen or smelled. Exposure to CO
can cause unconsciousness and
even death.
Exhaust may enter the vehicle if:
The vehicle idles in areas
with poor ventilation
(parking garages, tunnels,
deep snow that may block
underbody air
Tire Pressure
Tires need the correct amount of
air pressure to operate
effectively.
Caution:
Neither tire underinflation nor
overinflation is good.
Underinflated tires, or tires
that do not have enough air,
can result in:
Tire overloading and
overheating which could
lead to a blowout.
Premature or
irregul
