B1732 – OBD-II DTC

OBD-II DTC B1732 – Seat Driver Rear Down Switch Circuit Short To Ground

DTC B1732 meaning

DTC B1732 refers to a diagnostic trouble code indicating a short circuit to ground in the driver rear down switch circuit of the vehicle’s seat system. This code is part of the On-Board Diagnostics II (OBD-II) system, which monitors various components and systems within the vehicle for faults. The driver rear down switch is responsible for controlling the downward movement of the rear seat, and a short to ground suggests an electrical issue that may prevent the switch from functioning correctly.

DTC B1732 symptoms

Common symptoms associated with DTC B1732 may include:

• The rear seat does not move down when the switch is activated.
• Intermittent or complete failure of the seat adjustment feature.
• Illumination of the seat-related warning light on the dashboard.
• Other seat functions may also be affected.

DTC B1732 causes

Several potential causes for DTC B1732 include:

• A damaged or frayed wire in the driver rear down switch circuit.
• A faulty driver rear down switch itself.
• Corrosion or poor connections in the wiring harness.
• Issues with the seat control module.
• Short circuits due to moisture or foreign objects in the switch area.

DTC B1732 seriousness

The seriousness of DTC B1732 can vary depending on the specific vehicle and its features. However, it is generally considered a moderate issue because it affects the functionality of the seat adjustment system. While it may not pose an immediate safety risk, it can lead to discomfort for the driver or passengers if the seat cannot be adjusted properly. It is advisable to address this code promptly to restore full functionality.

How to diagnose DTC B1732

To diagnose DTC B1732, follow these steps:

1. Use an OBD-II scanner to confirm the presence of the DTC B1732.
2. Inspect the wiring and connectors associated with the driver rear down switch for any visible damage or corrosion.
3. Test the driver rear down switch using a multimeter to check for proper operation.
4. Check for continuity in the wiring harness to ensure there are no breaks or shorts.
5. Examine the seat control module for any fault codes or issues.

How to fix DTC B1732 step-by-step instructions

To fix DTC B1732, 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 or connectors in the driver rear down switch circuit.
3. If the driver rear down switch is faulty, replace it with a new one.
4. Clean any corrosion from connectors and ensure all connections are secure.
5. Reconnect the battery and clear the DTC using an OBD-II scanner.
6. Test the seat adjustment function to ensure it operates correctly.

How to erase DTC B1732

To erase DTC B1732, 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. Confirm the action to erase the DTC B1732.
5. Disconnect the scanner and start the vehicle to check if the code reappears.

Recommended tools for OBD-II diagnostics

Explore our expert picks: The Best OBD2 Scanners for 2025

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.