B1396 – OBD-II DTC

OBD-II DTC B1396 – Power Door Lock Circuit Short To Battery

DTC B1396 meaning

DTC B1396 refers to a diagnostic trouble code indicating a “Power Door Lock Circuit Short To Battery.” This code is triggered when the power door lock circuit experiences a short circuit to the battery voltage, which can lead to malfunctioning door locks.

DTC B1396 symptoms

Common symptoms associated with DTC B1396 may include:

• Power door locks not functioning properly
• Door locks continuously locking or unlocking
• Inoperative keyless entry system
• Battery drain due to constant power draw

DTC B1396 causes

Several factors can lead to the occurrence of DTC B1396, including:

• Wiring issues such as frayed or damaged wires
• Faulty door lock actuator
• Short circuits in the power door lock circuit
• Malfunctioning body control module (BCM)

DTC B1396 seriousness

DTC B1396 is considered a moderate to serious issue. While it may not immediately affect vehicle drivability, it can lead to:

• Increased risk of door lock failure
• Potential battery drain
• Inconvenience due to malfunctioning locks

How to diagnose DTC B1396

To diagnose DTC B1396, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the code.
2. Inspect the wiring and connectors related to the power door lock circuit for damage or corrosion.
3. Check the door lock actuator for proper operation.
4. Test the body control module for faults or malfunctions.
5. Perform a continuity test on the circuit to identify any shorts to battery voltage.

How to fix DTC B1396 step-by-step instructions

To fix DTC B1396, follow these steps:

1. Repair or replace any damaged wiring or connectors found during diagnosis.
2. Replace the faulty door lock actuator if it is not functioning correctly.
3. Address any issues with the body control module, which may involve reprogramming or replacement.
4. Clear the DTC using an OBD-II scanner after repairs are made.
5. Test the door lock system to ensure proper operation.

How to erase DTC B1396

To erase DTC B1396, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Access the trouble codes menu on the scanner.
3. Select the option to clear or erase codes.
4. Confirm the action and wait for the scanner to complete the process.
5. Disconnect the scanner and perform a test drive to ensure the code does not return.