AutoCodes – GMC – C0620 2015 GMC Sierra

C0620 2015 GMC Sierra Code - Right Front Position Sensor Circuit

Quick Answer

The Suspension Control Module supplies a 5 V reference signal to each Suspension Position Sensor. Common causes include Faulty Right Front Position Sensor, Right Front Position Sensor harness is open or shorted, Right Front 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: C0620 2015 GMC Sierra indicates Right Front Position Sensor Circuit.
Common causes: Common causes include Faulty Right Front Position Sensor, Right Front Position Sensor harness is open or shorted, Right Front 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 206

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 Jul 16, 2023

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code C0620 2015 GMC Sierra Description

The Suspension Control Module supplies a 5 V reference signal to each Suspension Position Sensor. The Suspension Position Sensors supply a signal of 0.35–4.75 V to the Suspension Control Module which represents the position between the body and the wheel. The sensors are also grounded through the Suspension Control Module. The Diagnostic Trouble Code (DTC) will be set when the Suspension Control Module measures a Suspension Position Sensor signal less than 0.35 V or greater than 4.75 V for more than 5 s while the vehicle is operated under normal driving conditions.

OBDII Code C0620 2015 GMC Sierra - Right Front Position Sensor Circuit - AutoCodes.com — C0620 2015 GMC Sierra Code - Right Front Position Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC C0620 2015 GMC Sierra?

Faulty Right Front Position Sensor
Right Front Position Sensor harness is open or shorted
Right Front Position Sensor circuit poor electrical connection
Faulty Suspension Control Module

How to Fix the DTC C0620 2015 GMC Sierra?

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 C0620 2015 GMC Sierra 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 C0620 2015 GMC Sierra code?

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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 C0620 2015 GMC Sierra Code

What does the OBDII code C0620 mean for my 2015 GMC Sierra?

C0620 indicates a problem with the right front position sensor circuit, which is responsible for monitoring the position of the right front suspension.

What are the common symptoms of C0620 in my GMC Sierra?

Symptoms can include warning lights on the dashboard, issues with stability control, uneven tire wear, and potentially a rough ride due to suspension problems.

What could cause the C0620 code to trigger?

Common causes include a faulty right front position sensor, damaged wiring or connectors, a poor ground connection, or issues with the vehicle's control module.

How can I diagnose the C0620 code?

Start by visually inspecting the right front position sensor and its wiring for damage or corrosion. Use a multimeter to check for continuity and proper voltage in the circuit.

Is it safe to drive my GMC Sierra with the C0620 code?

While it's generally safe to drive, you may experience handling issues or reduced stability. Itâ€™s advisable to address the code soon to ensure optimal vehicle performance.

What repairs might be necessary to fix the C0620 code?

Repairs may include replacing the right front position sensor, repairing or replacing damaged wiring, or addressing any issues with the vehicle's control module.

Can I reset the C0620 code after repairs?

Yes, you can reset the code using an OBDII scanner, but it's important to ensure that the underlying issue has been resolved to prevent the code from reappearing.

Will the C0620 code affect my vehicle's performance?

Yes, if the right front position sensor is malfunctioning, it can negatively impact suspension performance, handling, and overall vehicle stability.

How much does it typically cost to repair the C0620 code?

Repair costs can vary widely, typically ranging from $100 to $500, depending on whether you need to replace the sensor, repair wiring, or address other underlying issues.