AutoCodes – GMC – C0205 GMC

C0205 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: C0205 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,128

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code C0205 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 C0205 GMC - Steering Wheel Position Sensor - AutoCodes.com — C0205 GMC Code - Steering Wheel Position Sensor

What does this mean?

What are the Possible Causes of the DTC C0205 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 C0205 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 C0205 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.

Need more information about the C0205 GMC code?

Need more information on how to fix the C0205 GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C0205 GMC code diagnosed by a professional: Find a repair shop in your area

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 C0205 GMC Code

1. What are the common symptoms of OBDII code C0205 in a GMC related to the Steering Wheel Position Sensor?

The common symptoms include issues with the stability control system, illuminated warning lights on the dashboard, and potential steering irregularities.

2. What are the possible causes of OBDII code C0205 GMC related to the Steering Wheel Position Sensor?

The code C0205 in a GMC is often caused by a malfunctioning steering wheel position sensor, damaged wiring or connectors, or a faulty control module.

3. How can I diagnose the OBDII code C0205 in my GMC related to the Steering Wheel Position Sensor?

Diagnosing this code typically involves using a professional OBDII scanner to read the specific fault code, inspecting the sensor and its wiring for any visible damage, and performing a thorough system check.

4. Can I drive my GMC with OBDII code C0205 related to the Steering Wheel Position Sensor?

It is not recommended to drive your GMC with this code present, as it can affect the stability control system and potentially compromise the steering functionality. It's best to address the issue promptly.

5. How can I reset the OBDII code C0205 related to the Steering Wheel Position Sensor in my GMC?

Resetting the code can be done using an OBDII scanner by clearing the fault code after the underlying issue has been diagnosed and resolved.

6. Is it possible to repair the OBDII code C0205 GMC related to the Steering Wheel Position Sensor myself?

While some basic inspections and checks can be done by DIY enthusiasts, it's recommended to have a professional mechanic diagnose and repair this issue due to the complexity of the steering system.

7. Are there any maintenance tips to prevent OBDII code C0205 related to the Steering Wheel Position Sensor in my GMC?

Regularly inspecting the steering components, keeping an eye out for warning lights on the dashboard, and addressing any steering-related issues promptly can help prevent this code from appearing.

8. What is the typical cost to repair OBDII code C0205 GMC related to the Steering Wheel Position Sensor?

The cost of repairing this code can vary depending on the specific underlying issue, but it may involve replacing the sensor, repairing wiring, or addressing control module issues, which can range from moderate to expensive.

9. Can a faulty Steering Wheel Position Sensor affect other systems in my GMC?

Yes, a faulty steering wheel position sensor can impact the stability control system, ABS system, and other safety systems in your GMC, potentially compromising overall vehicle performance and safety.

10. How urgent is it to address OBDII code C0205 related to the Steering Wheel Position Sensor in my GMC?

It is recommended to address this code as soon as possible to prevent any potential safety hazards or further damage to the vehicle's steering system.