Engine-Codes.com
Engine-Codes – Chevrolet – B2602 Chevrolet

B2602 Chevrolet Code - DRL Relay Control Circuit Shorted To Ground

Quick Answer

The B2602 Chevrolet diagnostic trouble code indicates that there is a short to ground in the Daytime Running Lights (DRL) relay control circuit. Common causes include Damaged wiring in the DRL relay control circuit, Faulty DRL relay, Corrosion or loose connections in the circuit. 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
B2602 Chevrolet indicates DRL Relay Control Circuit Shorted To Ground.
Common causes
Common causes include Damaged wiring in the DRL relay control circuit, Faulty DRL relay, Corrosion or loose connections in the circuit.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 06, 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 B2602 Chevrolet Description

The B2602 Chevrolet diagnostic trouble code indicates that there is a short to ground in the Daytime Running Lights (DRL) relay control circuit. The DRL system is responsible for automatically turning on the headlights at reduced intensity during daylight hours, enhancing the visibility of the vehicle to other drivers. A short to ground in this circuit can disrupt the proper functioning of the DRL system, potentially leading to safety concerns due to decreased visibility.

OBDII Code B2602 Chevrolet - DRL Relay Control Circuit Shorted To Ground
B2602 Chevrolet Code - DRL Relay Control Circuit Shorted To Ground

Common Causes of B2602 Chevrolet

  1. Damaged wiring in the DRL relay control circuit
  2. Faulty DRL relay
  3. Corrosion or loose connections in the circuit
  4. ECM malfunction
  5. Short circuit in the DRL system

Symptoms of B2602 Chevrolet

  1. Daytime running lights not functioning properly
  2. Headlights flickering or dimming unexpectedly
  3. Dashboard warning light for DRL system illuminated
  4. Fuse related to DRL system blowing frequently
  5. Battery draining faster than usual

How to Fix B2602 Chevrolet

  1. Begin by inspecting the wiring and connections in the DRL relay control circuit for any visible damage or corrosion. Repair or replace any damaged components.
  2. Test the DRL relay using a multimeter to ensure it is functioning correctly. Replace the relay if necessary.
  3. Check the ECM for any fault codes related to the DRL system and address any issues found.
  4. Clear the diagnostic trouble codes from the ECM using a scan tool after completing the repairs.
  5. Test the DRL system to ensure that the issue has been resolved and that the lights are functioning as intended.

Cost to Fix B2602 Chevrolet

The cost of repairing a B2602 Chevrolet DRL relay control circuit shorted to ground can vary depending on the extent of the damage and the specific components that need to be replaced. On average, the repair costs for this issue can range from $100 to $300, including parts and labor. However, it's important to note that labor rates at auto repair shops can vary widely, so it's recommended to get a few quotes from different shops to compare prices. Additionally, the cost may be higher if other underlying issues are discovered during the diagnostic process.

Need more information about the B2602 Chevrolet code?

Need more information on how to fix the B2602 Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2602 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 B2602 Chevrolet Code

1. What are the common symptoms of OBDII code B2602 Chevrolet (DRL Relay Control Circuit Shorted To Ground)?

- Common symptoms include the daytime running lights (DRL) not functioning properly, flickering or staying on constantly, or the DRL indicator illuminated on the dashboard.

2. What are the possible causes of OBDII code B2602 Chevrolet?

- The code B2602 can be triggered by a short to ground in the DRL relay control circuit, a faulty DRL relay, damaged wiring, or a malfunctioning control module.

3. How can I diagnose the DRL Relay Control Circuit Shorted To Ground issue?

- Use a multimeter to test the continuity of the wiring in the DRL circuit, inspect the DRL relay for any signs of damage, and check for any visible wiring issues or connections that may be causing the short to ground.

4. Can I drive my Chevrolet with the OBDII code B2602 present?

- It is not recommended to drive your vehicle with the B2602 code as it may lead to safety concerns related to the daytime running lights not functioning correctly.

5. How can I repair the DRL Relay Control Circuit Shorted To Ground issue?

- Repair options include replacing the faulty DRL relay, repairing damaged wiring or connections, and resetting the control module after fixing the short to ground.

6. Will resetting the OBDII code B2602 Chevrolet resolve the issue?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying problem causing the DRL relay control circuit to short to ground.

7. Can a DIY enthusiast fix the OBDII code B2602 issue?

- Depending on your experience and access to tools, a DIY enthusiast can attempt to diagnose and repair the DRL relay control circuit shorted to ground issue. However, professional help may be needed for complex repairs.

8. How much does it cost to repair the OBDII code B2602 Chevrolet at a dealership or repair shop?

- The cost of repairing the B2602 code can vary depending on the extent of the damage and the labor rates of the dealership or repair shop. It is advisable to get a diagnostic and repair estimate before proceeding.

9. Are there any preventive measures to avoid the DRL Relay Control Circuit Shorted To Ground issue in the future?

- To prevent the B2602 code from reoccurring, regularly inspect the DRL system for any signs of wear or damage, conduct routine maintenance checks, and address any electrical issues promptly.

10. Will the OBDII code B2602 Chevrolet cause my vehicle to fail an emissions test?

- The B2602 code is related to the daytime running lights and does not affect emissions. However, it is best to address any OBDII codes before an emissions test to ensure overall vehicle health and compliance.

Discuss the causes and fixes for B2602 Chevrolet OBDII Code

Submit a New Comment

Code B2602 Chevrolet comments

No comments found for this page.