AutoCodes – GMC – C0208 GMC

C0208 GMC Code - Steering Wheel Position Sensor

Quick Answer

The steering wheel position sensor produces 2 separate voltage signals to indicate steering wheel position to the Real Time Damping (RTD) module. Common causes include Faulty Steering Wheel Position Sensor, Steering Wheel Position Sensor harness is open or shorted, Steering Wheel Position Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: C0208 GMC indicates Steering Wheel Position Sensor.
Common causes: Common causes include Faulty Steering Wheel Position Sensor, Steering Wheel Position Sensor harness is open or shorted, Steering Wheel Position Sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 949

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 09, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0208 GMC Description

The steering wheel position sensor produces 2 separate voltage signals to indicate steering wheel position to the Real Time Damping (RTD) module. The RTD module converts each signal into a Pulse Width Modulated (PWM) signal to indicate steering wheel position to the Electronic Brake Control Module (EBCM). The EBCM supplies 5 volts to the RTD module on each steering wheel position PWM serial data circuit. The RTD module toggles each of these voltages to ground in order to create the PWM signals. Each PWM signal must have a frequency of 121-134 Hz and a duty cycle of 9-91 percent in order to be a valid steering wheel position signal. With each 360 degree rotation of the steering wheel, each signal transitions from the minimum duty cycle to the maximum duty cycle and then back to the minimum duty cycle. The steering wheel position signals are spaced 90 degrees apart. Therefore, the duty cycles of the 2 signals usually differ, depending on steering wheel position.

OBDII Code C0208 GMC - Steering Wheel Position Sensor - AutoCodes.com — C0208 GMC Code - Steering Wheel Position Sensor

What does this mean?

What are the Possible Causes of the DTC C0208 GMC?

Faulty Steering Wheel Position Sensor
Steering Wheel Position Sensor harness is open or shorted
Steering Wheel Position Sensor circuit poor electrical connection

How to Fix the DTC C0208 GMC?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C0208 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about C0208 GMC Code

1. What are the common symptoms of OBDII code C0208 in a GMC related to the Steering Wheel Position Sensor?

The common symptoms include issues with the stability control system, the traction control system, and the service stability message appearing on the dashboard.

2. What are the possible causes of OBDII code C0208 in a GMC related to the Steering Wheel Position Sensor?

The code C0208 is often triggered by a faulty steering wheel position sensor, a damaged wiring harness, or a defective electronic brake control module (EBCM).

3. How can I diagnose the OBDII code C0208 related to the Steering Wheel Position Sensor in my GMC?

To diagnose the issue, you can use an OBDII scanner to retrieve the trouble codes, perform a visual inspection of the wiring and connectors, and conduct a sensor test using a multimeter.

4. Can I drive my GMC with the OBDII code C0208 related to the Steering Wheel Position Sensor?

It is not recommended to drive your GMC with this code present, as it may affect the stability and control systems of the vehicle, potentially compromising safety.

5. How can I repair OBDII code C0208 related to the Steering Wheel Position Sensor in my GMC?

Repair options include replacing the steering wheel position sensor, repairing or replacing damaged wiring, and reprogramming the electronic brake control module if necessary.

6. Are there any DIY tips for fixing OBDII code C0208 related to the Steering Wheel Position Sensor in my GMC?

While it is possible to replace the steering wheel position sensor yourself, it is recommended to have a professional technician diagnose and repair the issue to ensure proper calibration and functionality.

7. Is the OBDII code C0208 related to the Steering Wheel Position Sensor a common issue in GMC vehicles?

Yes, the code C0208 related to the Steering Wheel Position Sensor is a common issue in GMC vehicles, particularly in models equipped with stability control and traction control systems.

8. Can a faulty Steering Wheel Position Sensor cause other problems in my GMC besides triggering the OBDII code C0208?

Yes, a faulty Steering Wheel Position Sensor can cause issues with the stability and traction control systems, affecting the overall handling and safety of the vehicle.

9. How much does it typically cost to repair OBDII code C0208 related to the Steering Wheel Position Sensor in a GMC?

The cost of repair can vary depending on the specific issue, but it may range from $200 to $500, including parts and labor.

10. Will resetting the OBDII code C0208 related to the Steering Wheel Position Sensor make it go away permanently?

Resetting the code may temporarily clear the error message, but if the underlying issue is not addressed and repaired, the code is likely to reappear. It is important to diagnose and fix the root cause of the problem.