AutoCodes – Buick – C0630 Buick

C0630 Buick Code - Right Rear 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 Rear Position Sensor, Right Rear Position Sensor harness is open or shorted, Right Rear 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: C0630 Buick indicates Right Rear Position Sensor Circuit.
Common causes: Common causes include Faulty Right Rear Position Sensor, Right Rear Position Sensor harness is open or shorted, Right Rear 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 1,032

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 C0630 Buick 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 C0630 Buick - Right Rear Position Sensor Circuit - AutoCodes.com — C0630 Buick Code - Right Rear Position Sensor Circuit

What does this mean?

What are the Possible Causes of the DTC C0630 Buick?

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

How to Fix the DTC C0630 Buick?

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 C0630 Buick 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 C0630 Buick Code

1. What are the common symptoms of OBDII code C0630 in a Buick related to the Right Rear Position Sensor Circuit?

- Common symptoms include the traction control light illuminating on the dashboard, stability control issues, and potential ABS system malfunctions.

2. What are the possible causes of OBDII code C0630 in a Buick indicating a fault in the Right Rear Position Sensor Circuit?

- The code may be triggered by a faulty right rear wheel speed sensor, damaged wiring or connectors, or a malfunctioning electronic control unit (ECU).

3. How can I diagnose the OBDII code C0630 in a Buick affecting the Right Rear Position Sensor Circuit?

- Diagnosis typically involves using a scan tool to retrieve the specific fault code, inspecting the right rear wheel speed sensor and its wiring for damage, and testing the sensor's resistance.

4. What repair steps can I take to address OBDII code C0630 in a Buick related to the Right Rear Position Sensor Circuit?

- Repair may involve replacing the right rear wheel speed sensor, repairing damaged wiring or connectors, or reprogramming the ECU to clear the fault code.

5. Are there any DIY tips for troubleshooting OBDII code C0630 in a Buick linked to the Right Rear Position Sensor Circuit?

- While some basic inspections like checking for loose connections can be done by DIY enthusiasts, accurate diagnosis and repair of the issue may require professional assistance.

6. Can driving with OBDII code C0630 affecting the Right Rear Position Sensor Circuit in a Buick be dangerous?

- Driving with this fault code may compromise the vehicle's traction control, stability control, and ABS systems, potentially affecting overall driving safety. It's advisable to address the issue promptly.

7. Is it necessary to clear the OBDII code C0630 in a Buick after repairing the Right Rear Position Sensor Circuit issue?

- Yes, clearing the fault code after repairing the underlying issue is essential to reset the vehicle's ECU and ensure proper functioning of the ABS and stability control systems.

8. How much does it cost to repair OBDII code C0630 in a Buick associated with the Right Rear Position Sensor Circuit?

- Repair costs can vary depending on the specific cause of the issue, but they may range from a few hundred dollars for sensor replacement to more extensive repairs involving wiring or ECU issues.

9. Can extreme weather conditions or road debris trigger OBDII code C0630 in a Buick related to the Right Rear Position Sensor Circuit?

- Yes, harsh weather conditions, road debris, or water ingress can potentially damage the right rear wheel speed sensor or its connections, leading to the triggering of this fault code.

10. How can I prevent OBDII code C0630 from recurring in a Buick due to problems with the Right Rear Position Sensor Circuit?

- Regularly inspecting the wheel speed sensors and their connections for damage, ensuring proper sealing against moisture, and addressing any issues promptly can help prevent the code from recurring.