B3135 2015 GMC Sierra 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 2015 GMC Sierra 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 2015 GMC Sierra 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 2015 GMC Sierra?
- 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 2015 GMC Sierra?
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 2015 GMC Sierra 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 2015 GMC Sierra code?
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Frequently Asked Questions about B3135 2015 GMC Sierra Code
1. What does OBDII code B3135 for a 2015 GMC Sierra mean?
The B3135 code indicates a problem with the All Doors Lock Circuit in the vehicle.
2. What are the common symptoms of OBDII code B3135 in a 2015 GMC Sierra?
Common symptoms include issues with door locking/unlocking functions, intermittent power door lock failure, or the alarm system not working correctly.
3. What are some possible causes of OBDII code B3135 in a 2015 GMC Sierra?
Causes can range from a faulty door lock actuator, damaged wiring or connectors in the door lock circuit, to a malfunctioning body control module (BCM).
4. How can I diagnose the All Doors Lock Circuit issue related to OBDII code B3135 in my 2015 GMC Sierra?
To diagnose the problem, you may need to perform a visual inspection of the door lock components, test the door lock actuators, check the wiring for continuity, and scan the BCM for related fault codes.
5. Can I repair the OBDII code B3135 issue in my 2015 GMC Sierra myself?
Depending on your skill level and access to tools, you may be able to address the problem yourself by replacing a faulty door lock actuator, repairing damaged wiring, or resetting the BCM.
6. Is it safe to continue driving my 2015 GMC Sierra with OBDII code B3135 present?
While the vehicle may still be operational with this code, it's important to address the underlying issue promptly to prevent potential security and convenience problems related to the door locking system.
7. How much does it typically cost to repair OBDII code B3135 in a 2015 GMC Sierra at a professional auto repair shop?
Repair costs can vary depending on the specific cause of the issue, but you can expect to pay for diagnostic time, parts, and labor, with the total cost potentially ranging from $100 to $500 or more.
8. Can OBDII code B3135 in a 2015 GMC Sierra cause any other related problems in the vehicle?
Yes, unresolved issues with the All Doors Lock Circuit can lead to difficulties securing your vehicle, potential theft risks, and inconvenience with accessing or locking the doors.
9. Are there any preventive measures I can take to avoid encountering OBDII code B3135 in my 2015 GMC Sierra?
Regularly checking and maintaining the door locking system, promptly addressing any issues with door locks, and avoiding physical damage to the door components can help prevent this code from appearing.
10. How long does it typically take to repair OBDII code B3135 in a 2015 GMC Sierra?
The repair time can vary based on the specific cause of the issue and the complexity of the repair, but it may take anywhere from a couple of hours to a full day at the auto repair shop.
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