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B3808 Chevrolet Code - Rear Door Lock Relay Circuit

Quick Answer

The B3808 Chevrolet code refers to a potential issue with the rear door lock relay circuit in the vehicle. Common causes include Faulty rear door lock relay, Wiring issues or shorts in the rear door lock circuit, Corrosion or damage to the connectors 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
B3808 Chevrolet indicates Rear Door Lock Relay Circuit.
Common causes
Common causes include Faulty rear door lock relay, Wiring issues or shorts in the rear door lock circuit, Corrosion or damage to the connectors 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 07, 2024
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Code B3808 Chevrolet Description

The B3808 Chevrolet code refers to a potential issue with the rear door lock relay circuit in the vehicle. This code indicates that there is a malfunction in the circuit that controls the locking mechanism of the rear door. The rear door lock relay is responsible for sending the signal to lock or unlock the door, and if there is a problem with this circuit, it can lead to issues with the door's functionality.

OBDII Code B3808 Chevrolet - Rear Door Lock Relay Circuit
B3808 Chevrolet Code - Rear Door Lock Relay Circuit

Common Causes of B3808 Chevrolet

  1. Faulty rear door lock relay.
  2. Wiring issues or shorts in the rear door lock circuit.
  3. Corrosion or damage to the connectors in the circuit.
  4. Issues with the rear door lock actuator.
  5. Electronic control module (ECM) malfunction.

Symptoms of B3808 Chevrolet

  1. Rear door does not lock or unlock properly.
  2. Unintended door unlocking while driving.
  3. Inability to manually lock or unlock the rear door.
  4. Audible clicking noise coming from the rear door when attempting to lock or unlock.

How to Fix B3808 Chevrolet

  1. Begin by diagnosing the specific cause of the issue by using a diagnostic scanner to retrieve the trouble code and testing the rear door lock relay.
  2. Inspect the wiring and connectors in the rear door lock circuit for any signs of damage or corrosion. Repair or replace as necessary.
  3. Check the rear door lock actuator for proper operation and replace if faulty.
  4. If the issue persists, inspect the ECM for any malfunctions and replace if needed.
  5. Clear the trouble code from the vehicle's computer system and test the rear door lock to ensure proper functionality.

Cost to Fix B3808 Chevrolet

The typical repair costs for addressing the B3808 Chevrolet code can vary depending on the specific cause of the issue and the extent of the repair needed. On average, the parts for this repair can range from $50 to $200, with labor costs adding an additional $100 to $300. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate.

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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 B3808 Chevrolet Code

1. What are the common symptoms of OBDII code B3808 for the Chevrolet rear door lock relay circuit?

- Common symptoms include difficulty locking or unlocking the rear door, intermittent power lock failures, and the door lock not responding to the key fob or interior switch.

2. What are the possible causes of OBDII code B3808 related to the rear door lock relay circuit in a Chevrolet vehicle?

- Potential causes can include a faulty rear door lock relay, wiring issues such as shorts or open circuits, a malfunctioning door lock actuator, or a problem with the body control module.

3. How can I diagnose OBDII code B3808 in a Chevrolet for the rear door lock relay circuit issue?

- Diagnose the code by checking the rear door lock relay and actuator for proper function, inspecting the wiring for any damage or loose connections, and using a scan tool to communicate with the body control module for any stored fault codes.

4. What are some repair tips for resolving OBDII code B3808 on a Chevrolet due to the rear door lock relay circuit problem?

- Repair tips include ensuring the rear door lock relay is working correctly, repairing any damaged wiring, replacing the door lock actuator if necessary, and resetting the fault code with a scan tool after the repair is completed.

5. Can OBDII code B3808 for the Chevrolet rear door lock relay circuit be fixed without professional help?

- While some troubleshooting steps can be done by DIY enthusiasts, resolving the issue may require specialized tools and expertise. It is recommended to consult a professional mechanic for accurate diagnosis and repair.

6. Is it safe to continue driving with OBDII code B3808 triggered in a Chevrolet due to the rear door lock relay circuit issue?

- Driving with this code triggered may not pose an immediate safety risk, but it can lead to inconvenience and potential security concerns if the rear door lock is not functioning correctly. It is best to address the issue promptly.

7. How much does it typically cost to repair OBDII code B3808 related to the rear door lock relay circuit in a Chevrolet?

- The cost of repair can vary depending on the exact cause of the issue, labor rates in your area, and the cost of parts needed for the repair. It is recommended to obtain quotes from different repair shops for accurate pricing.

8. Will resetting the OBDII code B3808 for the Chevrolet rear door lock relay circuit issue make it go away permanently?

- Resetting the code may temporarily turn off the check engine light, but if the underlying issue causing the code is not addressed, it is likely to reoccur. It is crucial to diagnose and repair the root cause of the problem.

9. Can extreme weather conditions affect the rear door lock relay circuit and trigger OBDII code B3808 in a Chevrolet?

- Yes, extreme temperatures, moisture, or corrosion can impact the electrical components of the rear door lock relay circuit, leading to malfunctions and triggering the OBDII code. Ensure proper weatherproofing and maintenance to prevent these issues.

10. Are there any recalls or technical service bulletins related to OBDII code B3808 for the rear door lock relay circuit in Chevrolet vehicles?

- It is advisable to check with Chevrolet's authorized service centers or visit the National Highway Traffic Safety Administration (NHTSA) website for any recalls or technical service bulletins related to this specific OBDII code and issue.

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