what does steering-related code C0035 mean for GMC Sierra T1XX (2019-Present)

GMC Sierra T1XX (2019-Present)

Error Codes

2-4 hours

Time

medium

Difficulty

high

Severity

Error Code: C0035

3 min read

499 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix C0035 steering issue in GMC Sierra T1XX. Step-by-step guide with diagnostic procedures and repair instructions.

Error Code

C0035

Affected Component

Steering

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect battery before working on electrical systems.
•Use caution when working near the steering column to avoid injury.

Symptoms

•Steering warning light illuminated on the dashboard
•Erratic power steering assistance
•Difficulty steering, especially at low speeds
•Steering wheel does not return to center after a turn
•Unusual noise from the steering column or rack

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to confirm C0035 and check for any other related codes.
2
Inspect the steering position sensor for physical damage or disconnection.
3
Check the wiring harness and connectors related to the steering position sensor for shorts or corrosion.
4
Test the voltage and signal output from the steering position sensor using a multimeter.
5
Verify the calibration of the steering position sensor, if applicable.
6
Check fluid levels and condition of the power steering fluid.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•OBD-II scanner
•Socket set
•Screwdriver
•Multimeter
•Torque wrench

Parts Required

•Steering position sensor (if replacement is necessary)
•Power steering fluid (if needed)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to confirm C0035 and check for any other related codes.
2
Inspect the steering position sensor for physical damage or disconnection.
3
Check the wiring harness and connectors related to the steering position sensor for shorts or corrosion.
4
Test the voltage and signal output from the steering position sensor using a multimeter.
5
Verify the calibration of the steering position sensor, if applicable.
6
Check fluid levels and condition of the power steering fluid.

Solution

1. Preparation

Gather tools and parts needed.
Disconnect the vehicle battery to prevent electrical shorts.
Ensure the vehicle is on a level surface and the steering wheel is centered.

2. Inspect and Replace Steering Position Sensor

Tools Required: Socket set, screwdriver, multimeter, torque wrench
Remove the plastic cover from the steering column using a screwdriver.
Disconnect the electrical connector from the steering position sensor.
Remove the bolts securing the steering position sensor using a socket set.
Carefully detach the sensor from its mounting location.
Install the new steering position sensor, ensuring it is aligned properly.
Torque the mounting bolts to the manufacturer’s specifications (consult the service manual for exact torque values).
Reconnect the electrical connector securely.

3. Reconnect Battery and Calibrate

Reconnect the vehicle battery.
Use the OBD-II scanner to reset the error codes.
If necessary, perform a calibration procedure for the steering position sensor as outlined in the vehicle service manual.

4. Test Steering System

Start the vehicle and check for proper operation of the steering system.
Test drive the vehicle to ensure the steering is functioning smoothly and the warning light does not reappear.