AutoCodes – Chevrolet – B390C Chevrolet

B390C Chevrolet Code - Long Range Radar Sensor Module

Quick Answer

After replacement, the Radar Sensor Module long range must complete an alignment procedure. Common causes include Faulty Radar Sensor Module, Radar Sensor Module harness is open or shorted, Radar Sensor Module 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: B390C Chevrolet indicates Long Range Radar Sensor Module.
Common causes: Common causes include Faulty Radar Sensor Module, Radar Sensor Module harness is open or shorted, Radar Sensor Module 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 1,840

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 Mar 25, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B390C Chevrolet Description

After replacement, the Radar Sensor Module long range must complete an alignment procedure. The alignment procedure can be completed by driving the vehicle for approximately 30 min. The Diagnostic Trouble Code (DTC) sets when the Radar Sensor Module long range was unable to complete the alignment process within approximately 30 min of drive time.

OBDII Code B390C Chevrolet - Long Range Radar Sensor Module - AutoCodes.com — B390C Chevrolet Code - Long Range Radar Sensor Module

What does this mean?

What are the Possible Causes of the DTC B390C Chevrolet?

Faulty Radar Sensor Module
Radar Sensor Module harness is open or shorted
Radar Sensor Module circuit poor electrical connection

How to Fix the DTC B390C Chevrolet?

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 B390C Chevrolet 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 B390C Chevrolet code?

Need more information on how to fix the B390C Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B390C Chevrolet 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 B390C Chevrolet Code

1. What does OBDII code B390C for Chevrolet Long Range Radar Sensor Module indicate?

- OBDII code B390C indicates a fault in the Long Range Radar Sensor Module on Chevrolet vehicles.

2. What are some common symptoms of OBDII code B390C in a Chevrolet vehicle?

- Common symptoms include issues with the adaptive cruise control system, loss of radar sensor functionality, and warning lights on the dashboard.

3. What are the possible causes of OBDII code B390C in a Chevrolet Long Range Radar Sensor Module?

- The code B390C can be triggered by wiring faults, damaged radar sensors, calibration issues, or module malfunctions.

4. How can I diagnose OBDII code B390C in my Chevrolet for the Long Range Radar Sensor Module?

- Diagnosis involves using a professional OBDII scanner to retrieve the specific code, checking wiring connections, inspecting the radar sensor, and performing calibration tests.

5. Can I continue driving my Chevrolet with OBDII code B390C related to the Long Range Radar Sensor Module?

- It is not recommended to continue driving with this code as it may affect the functionality of safety features like adaptive cruise control.

6. How can I repair OBDII code B390C in my Chevrolet related to the Long Range Radar Sensor Module?

- Repair may involve fixing wiring issues, replacing damaged radar sensors, recalibrating the module, or seeking professional assistance for complex repairs.

7. Is it possible to reset OBDII code B390C related to the Long Range Radar Sensor Module in a Chevrolet?

- Clearing the code is possible using an OBDII scanner, but it is important to address the underlying issue causing the fault to prevent the code from reappearing.

8. Are there any DIY tips for troubleshooting OBDII code B390C in a Chevrolet Long Range Radar Sensor Module?

- DIY tips include checking for loose connections, inspecting the radar sensor for damage, and ensuring the module is properly calibrated.

9. How much does it typically cost to repair OBDII code B390C in a Chevrolet Long Range Radar Sensor Module?

- Repair costs can vary depending on the exact cause of the fault, but they may range from a few hundred to over a thousand dollars, including parts and labor.

10. Can I prevent OBDII code B390C from occurring in my Chevrolet Long Range Radar Sensor Module?

- Regular maintenance checks, avoiding water damage to the radar sensor, and addressing any warning signs promptly can help prevent OBDII code B390C from occurring.