B1339 – OBD-II DTC

OBD-II DTC B1339 – Chime Input Request Circuit Short To Battery

DTC B1339 meaning

DTC B1339 refers to a diagnostic trouble code indicating a problem with the chime input request circuit. Specifically, it signifies a short circuit to battery voltage within this circuit. The chime input request circuit is responsible for signaling the vehicle’s chime or alert system, which provides audible warnings for various conditions, such as door ajar or seatbelt reminders.

DTC B1339 symptoms

Common symptoms associated with DTC B1339 may include:

• Chime or alert system malfunctioning or not functioning at all
• Continuous chime sound even when conditions do not warrant it
• Dashboard warning lights illuminated
• Inconsistent chime behavior

DTC B1339 causes

Several factors can lead to the occurrence of DTC B1339, including:

• Short circuit in the chime input request circuit
• Faulty wiring or connectors within the circuit
• Defective chime module or control unit
• Corrosion or damage to electrical components

DTC B1339 seriousness

The seriousness of DTC B1339 can vary. While it may not prevent the vehicle from operating, it can lead to important alerts being missed, which could compromise safety. Therefore, it is advisable to address this issue promptly to ensure that all warning systems function correctly.

How to diagnose DTC B1339

To diagnose DTC B1339, follow these steps:

1. Use an OBD-II scanner to confirm the presence of DTC B1339.
2. Inspect the chime input request circuit for visible damage or corrosion.
3. Check the wiring and connectors for continuity and proper grounding.
4. Test the chime module or control unit for proper operation.
5. Clear the DTC and perform a road test to see if the code returns.

How to fix DTC B1339 step-by-step instructions

To fix DTC B1339, follow these steps:

1. Identify and repair any short circuits in the chime input request circuit.
2. Replace any damaged wiring or connectors.
3. Test and, if necessary, replace the chime module or control unit.
4. Ensure all connections are secure and free from corrosion.
5. Clear the DTC using an OBD-II scanner and verify that the issue is resolved.

How to erase DTC B1339

To erase DTC B1339, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn the ignition to the “ON” position without starting the engine.
3. Access the diagnostic trouble codes menu on the scanner.
4. Select the option to clear or erase codes.
5. Confirm the action and wait for the scanner to indicate that the codes have been cleared.

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