Buick Regal: DTC B124F
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 Procedure Instructions
DTC Descriptor
Universal Serial Bus (USB) Programming
- Symptom Byte:41–Not Programmed
- Symptom Byte:42–Configuration Not Programmed
- Symptom Byte:44–Security Access Not Activated
- Symptom Byte:4A–Programming Checksum Error
Circuit/System Description
The control module P16 performs software checks to validate a programming event has completed successfully.No external circuit diagnosis is involved.
Conditions for Running the DTC
Ignition - On / Vehicle - In Service Mode
Conditions for Setting the DTC
P16 Instrument Cluster=Programming Malfunction
Actions Taken When the DTC Sets
DTCs Stored
Some functions will not work.
Conditions for Clearing the DTC
The conditions for setting the DTC no longer exist.
Reference Information
Connector End View Reference
COMPONENT CONNECTOR END VIEW INDEX
Master Electrical Component List
Electrical Information Reference
- Circuit Testing
- Connector Repairs
- Testing for Intermittent Conditions and Poor Connections
- Wiring Repairs
Scan Tool Reference
Control Module References
Circuit/System Verification
1. Ignition - On / Vehicle - In Service Mode.
2. Verify DTC B124F is not set.
- If the DTC is set
- Perform all necessary programming and setup procedures for the control module:P16 Instrument Cluster
- Verify the DTC does not set.
- If the DTC sets - Replace the component:P16 Instrument Cluster
- Go to next step: If the DTC is not set
- All OK.
- Go to next step: If the DTC is not set
3. All OK.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the repair: Diagnostic Repair Verification.
For control module replacement, programming, and setup refer to: Control Module References.
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Perform the Diagnostic System Check - Vehicle prior to using this
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Review Strategy Based Diagnosis for an overview of the diagnostic
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Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
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Review Strategy Based Diagnosis for an overview of the diagnostic
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Diagnostic Instructions
Perform the Diagnostic System Check prior to using this diagnostic
procedure: Diagnostic
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Review the description of Strategy Based Diagnosis:Strateg
SEE MORE:
Brake Master Cylinder Replacement
Removal Procedure
WARNING: Brake Fluid Irritant Warning.
CAUTION: Brake Fluid Effects on Paint and Electrical Components Caution.
1. Place the ignition switch in the OFF position.
2. Apply and release the brake pedal several times until the brake pedal
becomes firm to deplete the
power vacuum brak
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
