B1396 Code - Power Door Lock Circuit Short To Battery
Quick Answer
The B1396 diagnostic trouble code (DTC) indicates that there is a short circuit in the power door lock circuit that is causing it to be connected to the battery. Common causes include Short circuit in the power door lock wiring, Faulty power door lock actuator, Corrosion or damage to the power door lock switch. 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
- B1396 indicates Power Door Lock Circuit Short To Battery.
- Common causes
- Common causes include Short circuit in the power door lock wiring, Faulty power door lock actuator, Corrosion or damage to the power door lock switch.
- 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 B1396 Description
The B1396 diagnostic trouble code (DTC) indicates that there is a short circuit in the power door lock circuit that is causing it to be connected to the battery. This can lead to a malfunction in the operation of the power door locks in the vehicle. The power door lock system is responsible for locking and unlocking the doors electronically, providing convenience and security to the vehicle occupants.
Common Causes of B1396
- Short circuit in the power door lock wiring
- Faulty power door lock actuator
- Corrosion or damage to the power door lock switch
- Electrical issues in the vehicle's wiring harness
- Faulty body control module (BCM)
Symptoms of B1396
- Power door locks not responding to key fob or interior switch
- Power door locks continuously locking and unlocking on their own
- Inability to manually lock or unlock doors
- Interior lights flickering or dimming when attempting to use power door locks
- Battery drain due to power door lock system malfunction
How to Fix B1396
- Begin by inspecting the power door lock wiring for any visible signs of damage or corrosion. Repair or replace any damaged wiring as needed.
- Test the power door lock actuator to ensure it is functioning properly. Replace the actuator if it is found to be faulty.
- Check the power door lock switch for any signs of damage or malfunction. Replace the switch if necessary.
- Inspect the vehicle's wiring harness for any other electrical issues that may be contributing to the short circuit. Repair or replace any damaged wiring.
- If the issue persists, consider testing and potentially replacing the body control module (BCM) if it is determined to be the root cause of the problem.
Cost to Fix B1396
The typical repair costs for addressing a power door lock circuit short to battery issue can range from $150 to $500, depending on the extent of the damage and the specific components that need to be repaired or replaced. This estimate includes parts and labor. However, it is important to note that the actual cost can vary based on factors such as the vehicle make and model, the location of the repair shop, and the hourly labor rates charged. It is recommended to obtain quotes from local auto repair shops to get a more accurate estimate for the repair.
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Frequently Asked Questions about B1396 Code
1. What does the OBDII code B1396 mean?
B1396 indicates a short circuit to the battery in the power door lock circuit, usually caused by a wiring issue or a defective component.
2. What are the common symptoms of code B1396?
Symptoms may include non-functional power door locks, doors locking or unlocking unexpectedly, or a blown fuse related to the door lock system.
3. What causes the B1396 code to appear?
Common causes include damaged or shorted wiring, a malfunctioning door lock actuator, a faulty door lock switch, or a problem with the body control module (BCM).
4. How can I diagnose the B1396 code?
Inspect the wiring and connectors for damage or corrosion, test the door lock actuator and switch, and check for any blown fuses or faults in the BCM.
5. Can I drive my car with the B1396 code active?
Yes, the car is typically drivable, but the power door locks may not function properly, which could compromise vehicle security.
6. How do I fix the B1396 code?
Repairs may involve replacing damaged wiring, repairing connectors, replacing a faulty door lock actuator or switch, or reprogramming or replacing the BCM.
7. How much does it cost to repair the B1396 code?
Costs vary depending on the issue but typically range from $100 to $500, including parts and labor, depending on the required repair.
8. Can a blown fuse cause the B1396 code?
Yes, a blown fuse in the power door lock circuit could trigger or be related to the B1396 code, often as a result of a short circuit.
9. What tools are needed to troubleshoot the B1396 code?
Tools like a multimeter, wiring diagrams, and an OBDII scanner are essential for diagnosing and repairing the issue.
10. Could the B1396 code be caused by a bad body control module (BCM)?
Yes, a faulty BCM could cause this code, but it’s less common and should be considered after other potential causes have been ruled out.
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