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:
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
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
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:
Diagnostic Instructions
Perform the Diagnostic System Check prior to using this diagnostic
procedure: Diagnostic
System Check - Vehicle
Review the description of Strategy Based Diagnosis: Strategy Based
Diagnosis
An overview of each diagnostic category can be found here: Diagnostic
Proced
Removal Procedure
1. Disassemble the A/C refrigerant components. Refer to the appropriate
repair procedure.
NOTE: Cap or tape the open A/C refrigerant components immediately to
prevent
system contamination.
2. Cap or tape the A/C refrigerant components.
3.
Remove the sealing washer (1) from the