AutoCodesChevrolet – B3135 Chevrolet

B3135 Chevrolet Code - All Doors Lock Circuit

Quick Answer

The Body Control Module (BCM) supplies a 12-volt signal to the lock and unlock signal circuits of the driver and passenger door lock switches. Common causes include Faulty Door Latch Assembly, Door Latch Assembly harness is open or shorted, Door Latch Assembly 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
B3135 Chevrolet indicates All Doors Lock Circuit.
Common causes
Common causes include Faulty Door Latch Assembly, Door Latch Assembly harness is open or shorted, Door Latch Assembly 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 4,384
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 11, 2023
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Code B3135 Chevrolet Description

The Body Control Module (BCM) supplies a 12-volt signal to the lock and unlock signal circuits of the driver and passenger door lock switches. When the appropriate switch is pressed, a contact within the door lock switch closes providing a ground path for the signal circuit. The BCM will detect the voltage drop in the signal and will command the doors to perform the lock or unlock functions. The BCM may also receive a LOCK or UNLOCK command from the Keyless Entry Control Module.
The BCM, upon receipt of a lock switch lock or unlock signal, will supply voltage to the door lock actuator lock or unlock control circuits. Since the opposite side of the lock actuator is connected to the ground through the other lock actuator control circuit, the doors will then lock or unlock as commanded. The Diagnostic Trouble Code (DTC) sets when the BCM detects a short to ground or open/high resistance on a door latch control circuit.
OBDII Code B3135 Chevrolet - All Doors Lock Circuit - AutoCodes.com
B3135 Chevrolet Code - All Doors Lock Circuit

What are the Possible Causes of the DTC B3135 Chevrolet?

  • Faulty Door Latch Assembly
  • Door Latch Assembly harness is open or shorted
  • Door Latch Assembly circuit poor electrical connection
  • Faulty Body Control Module (BCM)

How to Fix the DTC B3135 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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B3135 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 B3135 Chevrolet code?

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Information for Specific Chevrolet Models

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 B3135 Chevrolet Code

1. What are the common symptoms of OBDII code B3135 Chevrolet related to the All Doors Lock Circuit?

- Common symptoms include issues with central locking system operation, doors not locking or unlocking properly, and warning lights on the dashboard.

2. What are the possible causes of OBDII code B3135 Chevrolet for the All Doors Lock Circuit?

- Potential causes may include faulty door lock actuators, damaged wiring or connectors, a malfunctioning central locking module, or a blown fuse.

3. How can I diagnose OBDII code B3135 Chevrolet for the All Doors Lock Circuit?

- Diagnosis involves checking the condition of the door lock actuators, inspecting wiring for any visible damage, testing the central locking module, and using a diagnostic scanner to read the trouble codes.

4. Can I repair OBDII code B3135 Chevrolet for the All Doors Lock Circuit myself?

- Depending on the exact cause, some repairs can be done DIY such as replacing a faulty door lock actuator or repairing damaged wiring. However, complex issues may require professional help.

5. Is it safe to continue driving with OBDII code B3135 Chevrolet affecting the All Doors Lock Circuit?

- While the vehicle should still be operational, it is recommended to address the issue promptly to ensure the safety and security of the vehicle.

6. How much does it typically cost to repair OBDII code B3135 Chevrolet for the All Doors Lock Circuit?

- The cost of repair can vary widely depending on the specific cause of the issue, but it may range from $100 to $500 or more, including parts and labor.

7. Can OBDII code B3135 Chevrolet for the All Doors Lock Circuit cause any other problems in the vehicle?

- In addition to issues with the central locking system, unresolved problems related to this code may lead to draining the battery due to continuous attempts to lock or unlock the doors.

8. Are there any preventive measures I can take to avoid OBDII code B3135 Chevrolet for the All Doors Lock Circuit?

- Regularly inspecting and maintaining the door lock system, including lubricating moving parts and checking for any signs of wear, can help prevent such issues.

9. How long does it typically take to repair OBDII code B3135 Chevrolet for the All Doors Lock Circuit?

- The repair time can vary based on the complexity of the problem and the availability of parts, but it may take anywhere from one to several hours to complete the repair.

10. Will resetting the OBDII system clear the B3135 Chevrolet code related to the All Doors Lock Circuit?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not fixed, the code is likely to reappear after some driving cycles.

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