B1653 – OBD-II DTC

OBD-II DTC B1653 – Seat Driver Recline Backward Circuit Short To Battery

DTC B1653 meaning

DTC B1653 refers to a diagnostic trouble code indicating a short circuit in the driver seat recline backward circuit to the battery. This code is part of the On-Board Diagnostics II (OBD-II) system, which monitors various vehicle systems for faults. When the system detects that the recline mechanism is receiving an unexpected voltage, it triggers this code to alert the technician of a potential issue.

DTC B1653 symptoms

Common symptoms associated with DTC B1653 may include:

• Driver seat recline function not working
• Unusual noises from the seat adjustment mechanism
• Warning lights illuminated on the dashboard
• Intermittent or erratic seat movement

DTC B1653 causes

Several factors can lead to the triggering of DTC B1653, including:

• Short circuit in the wiring harness
• Faulty seat recline motor
• Damaged connectors or terminals
• Corrosion in electrical connections
• Issues with the body control module (BCM)

DTC B1653 seriousness

The seriousness of DTC B1653 can vary. While it may not pose an immediate safety risk, it can affect the comfort and adjustability of the driver’s seat. If left unaddressed, it could lead to further electrical issues or damage to the seat adjustment system. Therefore, it is advisable to diagnose and repair the issue promptly.

How to diagnose DTC B1653

To diagnose DTC B1653, 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 seat recline mechanism for damage or corrosion.
3. Check the seat recline motor for proper operation.
4. Test the voltage at the motor and ensure it matches specifications.
5. Examine the body control module for any faults or issues.

How to fix DTC B1653 step-by-step instructions

To fix DTC B1653, follow these step-by-step instructions:

1. Disconnect the vehicle’s battery to ensure safety while working on electrical components.
2. Inspect and repair any damaged wiring or connectors in the seat recline circuit.
3. Replace the seat recline motor if it is found to be faulty.
4. Clean any corroded connections and ensure all terminals are secure.
5. Reconnect the battery and clear the DTC using an OBD-II scanner.
6. Test the seat recline function to ensure it operates correctly.

How to erase DTC B1653

To erase DTC B1653, follow these steps:

1. Connect an OBD-II scanner to the vehicle’s diagnostic port.
2. Turn on the ignition without starting the engine.
3. Navigate to the option to clear or erase trouble codes on the scanner.
4. Select DTC B1653 and confirm the erasure.
5. Disconnect the scanner and start the vehicle to ensure the code does not reappear.

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