B1325 – OBD-II DTC

OBD-II DTC B1325 – Door Ajar Lamp Circuit Short To Battery

DTC B1325 meaning

DTC B1325 refers to a diagnostic trouble code indicating a short circuit in the Door Ajar Lamp circuit to battery voltage. This code is triggered when the vehicle’s onboard diagnostic system detects that the door ajar lamp is receiving constant battery voltage, which suggests a malfunction in the circuit.

DTC B1325 symptoms

Common symptoms associated with DTC B1325 may include:

• The door ajar warning light remains illuminated on the dashboard.
• Inconsistent or non-functioning door ajar indicators.
• Possible issues with other electrical components related to the door system.

DTC B1325 causes

Several factors can lead to the occurrence of DTC B1325, including:

• A short circuit in the wiring harness connected to the door ajar lamp.
• Faulty door ajar switch that fails to open or close properly.
• Corrosion or damage in the electrical connectors.
• Issues with the vehicle’s body control module (BCM) that may misinterpret signals.

DTC B1325 seriousness

DTC B1325 is considered a moderate issue. While it may not affect the vehicle’s drivability, it can lead to confusion regarding the door status and may drain the battery if the door ajar lamp remains on. Addressing this code promptly is advisable to prevent further electrical issues.

How to diagnose DTC B1325

To diagnose DTC B1325, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the B1325 code.
2. Inspect the door ajar switch for proper operation.
3. Check the wiring harness for any signs of damage or short circuits.
4. Examine the electrical connectors for corrosion or loose connections.
5. Test the body control module for any faults or irregularities.

How to fix DTC B1325 step-by-step instructions

To fix DTC B1325, follow these steps:

1. Disconnect the vehicle’s battery to ensure safety while working on the electrical system.
2. Inspect and repair any damaged wiring in the door ajar lamp circuit.
3. Replace the faulty door ajar switch if it is not functioning correctly.
4. Clean or replace any corroded electrical connectors.
5. Reconnect the battery and clear the DTC using an OBD-II scanner.
6. Test the door ajar lamp circuit to ensure proper operation.

How to erase DTC B1325

To erase DTC B1325, 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 trouble codes.
4. Confirm the action and wait for the scanner to complete the process.
5. Disconnect the scanner and start the vehicle to check if the code reappears.

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