B1248 – OBD-II DTC

OBD-II DTC B1248 – Passenger’s Seatback Autoglide Rearward Switch Circuit Short to Ground

DTC B1248 meaning

DTC B1248 refers to a diagnostic trouble code indicating a short to ground in the passenger’s seatback autoglide rearward switch circuit. This code is part of the On-Board Diagnostics II (OBD-II) system, which monitors various vehicle systems for faults. The autoglide feature allows the passenger seat to move rearward automatically, enhancing comfort and accessibility.

DTC B1248 symptoms

Common symptoms associated with DTC B1248 may include:

• Passenger seat not moving rearward when activated.
• Warning lights illuminated on the dashboard.
• Inconsistent operation of the seat adjustment controls.
• Possible malfunction of other related electrical components.

DTC B1248 causes

Several factors can lead to the occurrence of DTC B1248, including:

• Wiring issues, such as frayed or damaged wires.
• Corrosion or poor connections in the switch circuit.
• Faulty seatback autoglide rearward switch.
• Malfunctioning control module that manages seat functions.

DTC B1248 seriousness

DTC B1248 is considered a moderate issue. While it may not affect the vehicle’s drivability, it can impact passenger comfort and safety. If left unaddressed, it may lead to further electrical problems or damage to the seat adjustment system.

How to diagnose DTC B1248

To diagnose DTC B1248, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the DTC.
2. Inspect the wiring and connectors associated with the passenger’s seatback autoglide rearward switch for damage or corrosion.
3. Test the switch for continuity and proper operation.
4. Check the control module for any additional fault codes or issues.
5. Perform a visual inspection of the seat adjustment mechanism for any obstructions or mechanical failures.

How to fix DTC B1248 step-by-step instructions

To fix DTC B1248, 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 switch circuit.
3. Replace the passenger’s seatback autoglide rearward switch if it is found to be faulty.
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 adjustment function to ensure proper operation.

How to erase DTC B1248

To erase DTC B1248, follow these steps:

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

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