B1958 – OBD-II DTC

OBD-II DTC B1958 – Seat Recline Forward/Backward Potentiometer Feedback Circuit Failure

DTC B1958 meaning

DTC B1958 refers to a fault in the seat recline forward/backward potentiometer feedback circuit. This circuit is responsible for monitoring the position of the seat recline mechanism, allowing the vehicle’s control module to determine if the seat is in the correct position. When this code is triggered, it indicates that the feedback from the potentiometer is not within the expected range, suggesting a malfunction in the circuit or the potentiometer itself.

DTC B1958 symptoms

Common symptoms associated with DTC B1958 may include:

• Inability to adjust the seat recline position
• Seat recline position may be stuck or unresponsive
• Warning lights on the dashboard related to the seat or airbag system
• Intermittent or erratic seat movement

DTC B1958 causes

Several factors can lead to the triggering of DTC B1958, including:

• Faulty seat recline potentiometer
• Wiring issues such as shorts, opens, or corrosion in the feedback circuit
• Faulty seat control module
• Improper installation or damage to the seat assembly

DTC B1958 seriousness

DTC B1958 is considered a moderate issue. While it may not affect the vehicle’s drivability, it can compromise the safety and comfort of the driver and passengers. A malfunctioning seat recline mechanism can lead to improper seating positions, which may affect airbag deployment and overall safety in the event of a collision.

How to diagnose DTC B1958

To diagnose DTC B1958, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the DTC.
2. Inspect the seat recline potentiometer and its wiring for visible damage or disconnections.
3. Check the resistance of the potentiometer using a multimeter to ensure it is functioning within specifications.
4. Examine the seat control module for any fault codes or issues.
5. Perform a continuity test on the wiring harness to ensure there are no breaks or shorts.

How to fix DTC B1958 step-by-step instructions

To fix DTC B1958, follow these steps:

1. Disconnect the vehicle’s battery to ensure safety while working on the electrical components.
2. Inspect and repair any damaged wiring or connectors related to the seat recline potentiometer.
3. If the potentiometer is faulty, replace it with a new one.
4. Reconnect all connectors and ensure they are secure.
5. Reconnect the vehicle’s battery.
6. Clear the DTC using an OBD-II scanner and test the seat recline function to ensure it operates correctly.

How to erase DTC B1958

To erase DTC B1958, 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 DTC menu on the scanner and 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 reappear.

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