Engine-CodesChevrolet – B390C Chevrolet

B390C Chevrolet Code - Long Range Radar Sensor Module

Quick Answer

The B390C diagnostic trouble code (DTC) for Chevrolet vehicles refers to a fault in the Long Range Radar Sensor Module. Common causes include Faulty Long Range Radar Sensor Module, Damaged wiring or connectors leading to the radar sensor, Environmental factors such as dirt, debris, or moisture affecting the sensor's performance. 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 Long Range Radar Sensor Module, Damaged wiring or connectors leading to the radar sensor, Environmental factors such as dirt, debris, or moisture affecting the sensor's performance.
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.
Table of contents Created and updated by William Orellana on Sep 14, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B390C Chevrolet Description

The B390C diagnostic trouble code (DTC) for Chevrolet vehicles refers to a fault in the Long Range Radar Sensor Module. This module is a crucial component of the vehicle's advanced driver assistance systems (ADAS), specifically the adaptive cruise control and collision avoidance systems. The Long Range Radar Sensor Module is responsible for detecting objects in the vehicle's path, measuring their distance, and adjusting the vehicle's speed accordingly to maintain a safe following distance.

OBDII Code B390C Chevrolet - Long Range Radar Sensor Module
B390C Chevrolet Code - Long Range Radar Sensor Module

Common Causes of B390C Chevrolet

  1. Faulty Long Range Radar Sensor Module.
  2. Damaged wiring or connectors leading to the radar sensor.
  3. Environmental factors such as dirt, debris, or moisture affecting the sensor's performance.
  4. Electrical issues within the sensor module.
  5. Impact or physical damage to the radar sensor.

Symptoms of B390C Chevrolet

  1. Adaptive cruise control not working correctly or disengaging unexpectedly.
  2. Inaccurate or intermittent collision warnings.
  3. Loss of radar sensor functionality.
  4. Malfunction indicator light (MIL) illuminated on the dashboard.
  5. Reduced overall performance of the vehicle's safety systems.

How to Fix B390C Chevrolet

  1. Begin by conducting a thorough diagnostic scan to confirm the B390C code and pinpoint the exact issue with the Long Range Radar Sensor Module.
  2. Inspect the wiring and connectors leading to the radar sensor for any damage or corrosion. Repair or replace as necessary.
  3. Check for any environmental factors that may be obstructing the radar sensor's performance, such as dirt or debris. Clean the sensor and surrounding area.
  4. If the radar sensor module is found to be faulty, it will need to be replaced with a new unit.
  5. After replacing the sensor module, clear the DTC and perform a test drive to ensure that the adaptive cruise control and collision avoidance systems are functioning correctly.

Cost to Fix B390C Chevrolet

The typical repair costs for addressing the B390C code related to the Long Range Radar Sensor Module can vary depending on the extent of the issue and the specific vehicle model. On average, the parts for a new radar sensor module can range from $500 to $1000, while labor costs can add an additional $200 to $400. Overall, the total repair cost for this issue may fall between $700 and $1400. It's important to note that diagnosis time and labor rates at auto repair shops can fluctuate based on various factors, so it's advisable to inquire locally for a more accurate estimate.

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.

Discuss the causes and fixes for B390C Chevrolet OBDII Code

Code B390C Chevrolet comments

No comments found for this page.