B3135 Buick 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 Buick 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.
Code B3135 Buick Description
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.
What are the Possible Causes of the DTC B3135 Buick?
- 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 Buick?
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 B3135 Buick 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.
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Frequently Asked Questions about B3135 Buick Code
1. What are common symptoms of OBDII code B3135 in a Buick related to the All Doors Lock Circuit?
- Common symptoms include issues with the automatic door locking system, such as doors not locking or unlocking properly or intermittently.
2. What are some possible causes of OBDII code B3135 in a Buick indicating a problem with the All Doors Lock Circuit?
- Causes may include faulty door lock actuators, wiring issues, blown fuses, or a malfunctioning door control module.
3. How can I diagnose the OBDII code B3135 in my Buick's All Doors Lock Circuit?
- A diagnostic scan tool can help identify the specific door or component causing the issue. Checking the wiring and connections for damage or loose connections is also recommended.
4. What are some repair tips for fixing OBDII code B3135 related to the All Doors Lock Circuit in a Buick?
- Repair tips may include replacing faulty door lock actuators, repairing damaged wiring, checking and replacing fuses, or reprogramming the door control module if necessary.
5. Can OBDII code B3135 in a Buick impact vehicle safety or security?
- While the code may not directly impact the drivability of the vehicle, it can affect the security of the doors and potentially compromise the safety of the vehicle.
6. Is it safe to continue driving my Buick with OBDII code B3135 related to the All Doors Lock Circuit?
- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to ensure proper operation of the door locking system.
7. How much does it typically cost to repair OBDII code B3135 in a Buick's All Doors Lock Circuit?
- The cost of repairs can vary depending on the specific cause of the issue, but it may range from a few hundred to a thousand dollars, including parts and labor.
8. Can I reset the OBDII code B3135 in my Buick after addressing the All Doors Lock Circuit problem?
- Yes, once the underlying issue has been fixed, you can use a diagnostic scan tool to clear the code and reset the vehicle's computer system.
9. Are there any preventative measures I can take to avoid OBDII code B3135 in my Buick's All Doors Lock Circuit?
- Regularly inspecting the door locking system, keeping the wiring connections clean and secure, and addressing any issues promptly can help prevent this code from appearing.
10. Will OBDII code B3135 in a Buick cause the Check Engine Light to illuminate?
- While this particular code may not trigger the Check Engine Light, it can still be stored in the vehicle's computer system and accessed with a diagnostic scan tool.
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