Buick Regal: DTC C1436
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
DTC C1436
Steering Wheel Angle Sensor Signal
Symptom Byte Information: Symptom Byte List.
Circuit/System Description
For an overview of the component/system, refer to:ABS Description and
Operation.
Conditions for Running the DTC
Electronic Brake Control Module in Initialization Mode
- Ignition Voltage=Greater than 8 V
- The vehicle speed is greater than 20 km/h (12 MPH).
Conditions for Setting the DTC
Symptom Byte:09
Steering Wheel Angle Sensor Signal = Not Plausible
Symptom Byte:0A
Steering Wheel Angle Sensor Signal = Constant
Symptom Byte:11
Steering Wheel Angle Sensor Signal = Out Of Range
Actions Taken When the DTC Sets
One or more of the following may occur:
- Traction/Stability Control Indicator = On
- P9 Driver Information Center Display = Service Stability Control
- P9 Driver Information Center Display = Service Brake Assist
- P9 Driver Information Center Display = Service Power Steering
- Traction Control & Vehicle Stability Control = Disabled
Conditions for Clearing the DTC
- A current DTC will clear when the diagnostic runs and passes.
- A history DTC will clear after 40 consecutive malfunction-free ignition
cycles.
Diagnostic Aids
- Check the tire inflation pressure and adjust to the tire inflation
specifications as necessary.
- The vehicle should not pull in either direction causing the steering
wheel to be off center while
driving in a straight line on a level.
- Confirm that all tires are of the proper size and the same model and
brand. If a mis-sized or nonmatching
tire model is present, inform the customer that in order for the vehicle
stability system to
function normally, tires need to have a uniform size and rolling diameter.
- Inspect the serial data circuits and connections at the power steering
control module and the
electronic brake control module. They should be free from sources of
electromagnetic interference
and the connections should be clean and tight.
Reference Information
Schematic Reference
Antilock Brake System Wiring Schematics
Connector End View Reference
COMPONENT CONNECTOR END VIEW INDEX
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.
2. Verify there are no DTCs set related to the following system/component: K43
Power Steering
Control Module.
Refer to:Diagnostic Trouble Code (DTC) List - Vehicle
- Go to next step: If a related DTC is not set
- Verify DTC U0126, U0130, U0131 is not set.
- Verify DTC C0035-C0050 is not set. - Electronic Brake Control Module
3. Perform the following procedure/test:Steering Wheel Angle Sensor Centering
- If the repair corrected the DTC/symptom
All OK.
- Go to next step: If the repair did not correct the DTC/symptom
4. Replace the component: Steering Gear
- If the repair corrected the DTC/symptom
All OK.
- Go to next step: If the repair did not correct the DTC/symptom
5. Replace the component: K17 Electronic Brake Control Module.
6. All OK.
Repair Instructions
Perform the Diagnostic Repair Verification after completing the repair:
Diagnostic Repair Verification
- Electric Dual Pinion Rack and Pinion Steering Gear Replacement
- For control module replacement, programming, and setup refer to: Control
Module References
READ NEXT:
NOTE: Review the system description and operation in order to
familiarize yourself
with the system functions. Refer to Power Steering System Description and
Operation (Electronic Power Steering).
Vis
Special Tools
EL-38125-10 Splice Sleeve Crimping Tool (non GMNA)
J-38125-5A Ultra Torch Special Tool
J-38125-8 Splice Sleeve Crimping Tool (GMNA)
For equivalent regional tools, refer to Special T
SEE MORE:
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.
Diagnostic Procedure Instructions provides an overview of each
diagnostic category.
DTC Descriptors
D
Removal Procedure
1. Transmission Control Module - Remove - Refer to Transmission Control
Module Replacement.
2. Drain the transmission fluid. Transmission Fluid Drain and Fill.
3. Control Valve Body Cover - Remove - Refer to Control Valve Body Cover
Replacement.
4.
NOTE: Note the position and