AutoCodes – GMC – C1768 GMC

C1768 GMC Code - Position Sensor Supply Fault

Quick Answer

The Suspension Control Module monitors the Position Sensor. Common causes include Faulty Position Sensor, Position Sensor harness is open or shorted, 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: C1768 GMC indicates Position Sensor Supply Fault.
Common causes: Common causes include Faulty Position Sensor, Position Sensor harness is open or shorted, 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 702

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 Nov 22, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C1768 GMC Description

The Suspension Control Module monitors the Position Sensor. The Suspension Control Module sets the OBDII code when the Position Sensor is not to factory specifications.

OBDII Code C1768 GMC - Position Sensor Supply Fault - AutoCodes.com — C1768 GMC Code - Position Sensor Supply Fault

What does this mean?

What are the Possible Causes of the DTC C1768 GMC?

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

How to Fix the DTC C1768 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 C1768 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 C1768 GMC Code

1. What are common symptoms of OBDII code C1768 GMC (Position Sensor Supply Fault)?

- Common symptoms include erratic steering behavior, difficulty controlling the vehicle, and the stability control warning light illuminating on the dashboard.

2. What usually causes the OBDII code C1768 GMC to trigger?

- The code is typically triggered by a fault in the position sensor supply circuit, which may be caused by damaged wiring, a faulty sensor, or a malfunctioning control module.

3. How can I diagnose the OBDII code C1768 GMC issue?

- Diagnosis involves using a scan tool to retrieve the trouble code, inspecting the wiring and connectors for damage, testing the sensor's resistance, and checking the control module for proper operation.

4. Is it safe to drive with the OBDII code C1768 GMC active?

- It is not recommended to drive the vehicle with this code active, as it can affect the vehicle's stability and steering control, potentially leading to unsafe driving conditions.

5. Can I repair the OBDII code C1768 GMC issue myself?

- Depending on your mechanical skills and access to tools, you may be able to repair the issue yourself by replacing a damaged sensor, repairing faulty wiring, or addressing issues with the control module.

6. How much does it typically cost to repair the OBDII code C1768 GMC problem?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from around $100 to $500 or more, including parts and labor.

7. Will resetting the trouble code make it go away permanently?

- Resetting the trouble code may temporarily clear the warning light, but if the underlying issue causing the code is not addressed, the code is likely to return.

8. Can extreme weather conditions contribute to triggering the OBDII code C1768 GMC?

- Yes, extreme weather conditions like excessive heat or moisture can potentially damage the sensor or wiring, leading to the code being triggered.

9. Are there any preventive measures to avoid the OBDII code C1768 GMC from occurring?

- Regularly inspecting and maintaining the steering system, avoiding driving through deep water or over rough terrain, and addressing any warning lights promptly can help prevent this code from occurring.

10. Is it necessary to visit a dealership for repairs related to the OBDII code C1768 GMC?

- While visiting a dealership is an option, you can also seek repairs from independent mechanics or specialists experienced in diagnosing and fixing issues related to this code.