Buick Regal: Symptoms - Steering Wheel and Column

NOTE: Review the system operation in order to familiarize yourself with the system functions.

Refer to Steering Wheel and Column Description and Operation.

Symptoms List

Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:

• High Effort While Tilting Column
• High Telescoping Effort
• Looseness in Steering Column
• Noise in Steering Column

HEATED STEERING WHEEL INDICATOR MALFUNCTION

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

Diagnostic Fault Information

1. Heated Steering Wheel = Inoperative
2. Heated Steering Wheel = Always On
3. LED (Light Emitting Diode) = Inoperative
4. LED (Light Emitting Diode) = Always On

Circuit/System Description

For an overview of the component/system, refer to:Steering Wheel and Column Description and Operation

Reference Information

Schematic Reference

Steering Wheel 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

Circuit/System Verification

1. Ignition - On / Vehicle - In Service Mode.

2. Heated Steering Wheel - Off.

3. Verify the following conditions do not exist:

• Heated Steering Wheel Indicator = On
• Heated Steering Wheel = Activated
• If a condition exists - Heated Steering Wheel = Activated

Refer to:Heated Steering Wheel Malfunction

• If a condition exists - Heated Steering Wheel Indicator = On

Refer to: Circuit/System Testing

• Go to next step: If none of the conditions exists

4. Press and release the switch: Heated Steering Wheel Switch.

5. Verify the following conditions do not exist:

• Heated Steering Wheel Indicator = Off
• Heated Steering Wheel = Not Activated
• If a condition exists - Heated Steering Wheel = Not Activated

Refer to:Heated Steering Wheel Malfunction

• If a condition exists - Heated Steering Wheel Indicator = Off

Refer to: Circuit/System Testing

• Go to next step: If none of the conditions exists

6. All OK.

Circuit/System Testing

1. Ignition/Vehicle - Off.

2. Disconnect the electrical connector: X229@K32 Steering Wheel Heating Control Module.

3. Test for less than 10 ohms between the test points: Ground circuit terminal 5 & Ground.

• If 10 ohms or greater

1. Ignition/Vehicle - Off
2. Test for less than 2 ohms between the test points: Ground circuit & The other end of the circuit
   • If 2 ohms or greater - Repair the open/high resistance in the circuit.
   • If less than 2 ohms - Repair the open/high resistance in the ground connection.

• Go to next step: If less than 10 ohms

4. Ignition - On / Vehicle - In Service Mode.

5. Verify a test lamp turns On between the test points: Ignition circuit terminal 3 & Ground.

• If the test lamp does not turn On and the circuit fuse is OK

1. Ignition/Vehicle - Off & Remove - Test lamp
2. Test for less than 2 ohms between the test points: Ignition circuit & The other end of the circuit
   • If 2 ohms or greater - Repair the open/high resistance in the circuit.
   • If less than 2 ohms - Verify the fuse is OK and there is voltage at the fuse. Refer to:Power Mode Mismatch.

• If the test lamp does not turn On and the circuit fuse is open

1. Ignition/Vehicle - Off
2. Test for infinite resistance between the test points: Ignition circuit & Ground
   • If less than infinite resistance - Repair the short to ground on the circuit.
   • If less than infinite resistance - Replace the component: K32 Steering Wheel Heating Control Module

• Go to next step: If the test lamp turns On

6. Ignition/Vehicle - Off.

7. Connect the electrical connector: X229@K32 Steering Wheel Heating Control Module.

8. Disconnect the electrical connector: S70L Steering Wheel Controls Switch - Left.

9. Ignition - On / Vehicle - In Service Mode.

10. Test for battery voltage between the test points: Control terminal 4 & Ground.

• If less than battery voltage

1. Ignition/Vehicle - Off
2. Disconnect the electrical connector: S70R Steering Wheel Controls Switch - Right
3. Test for infinite resistance between the test points:Control Circuit & Ground
   • If less than infinite resistance - Repair the short to ground on the circuit.
   • Go to next step: If infinite resistance
4. Test for less than 2 ohms between the test points: Control Circuit & The other end of the circuit
   • If 2 ohms or greater - Repair the open/high resistance in the circuit.
   • If less than 2 ohms - Replace the component: K32 Steering Wheel Heating Control Module

• Go to next step: If battery voltage

11. Ignition/Vehicle - Off.

12. Connect the electrical connector: S70L Steering Wheel Controls Switch - Left.

13. Disconnect the electrical connector: X229@K32 Steering Wheel Heating Control Module.

NOTE: Verify interior lighting dimming is turned all the way up.

14. Connect a 3 A fused jumper wire between the test points: Control circuit terminal 2 & Ground..

15. Ignition - On / Vehicle - In Service Mode

16. Verify the component turns On and Off when connecting and disconnecting the jumper wire:Heated.

Steering Wheel Indicator.

• If the component does not turn On and Off

Replace the component: S70L Steering Wheel Controls Switch - Left

• If the component turns On and Off

Replace the component: K32 Steering Wheel Heating Control Module

Repair Instructions

Perform the Diagnostic Repair Verification after completing the repair: Diagnostic Repair Verification.

• Cruise Control Switch Replacement
• For control module replacement, programming, and setup refer to: Control Module References

READ NEXT: