B2164 – OBD-II DTC

OBD-II DTC B2164 – Seat Rear Vertical Motor Memory Position Out of Range

DTC B2164 meaning

DTC B2164 refers to a diagnostic trouble code indicating that the rear vertical motor for the seat has a memory position that is out of range. This code is specific to the seat positioning system, which is responsible for adjusting the seat’s height and angle. When the system detects that the motor cannot reach the stored position, it triggers this code.

DTC B2164 symptoms

Common symptoms associated with DTC B2164 may include:

• The rear seat does not adjust properly.
• Unusual noises from the seat adjustment mechanism.
• Inability to recall the saved seat position.
• Warning lights illuminated on the dashboard.

DTC B2164 causes

Several factors can lead to the triggering of DTC B2164, including:

• Faulty rear vertical motor.
• Wiring issues, such as shorts or open circuits.
• Defective seat position sensor.
• Software glitches in the vehicle’s control module.
• Mechanical obstructions preventing seat movement.

DTC B2164 seriousness

DTC B2164 is considered a moderate issue. While it may not affect the vehicle’s overall drivability, it can impact comfort and safety by preventing proper seat adjustment. If left unaddressed, it may lead to further electrical or mechanical failures in the seat adjustment system.

How to diagnose DTC B2164

To diagnose DTC B2164, 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 rear vertical motor for damage or corrosion.
3. Test the rear vertical motor for proper operation using a multimeter.
4. Check the seat position sensor for functionality.
5. Examine the control module for any software updates or faults.

How to fix DTC B2164 step-by-step instructions

To fix DTC B2164, follow these steps:

1. Repair or replace any damaged wiring or connectors found during diagnosis.
2. If the rear vertical motor is faulty, replace it with a new one.
3. Replace the seat position sensor if it is not functioning correctly.
4. Update the vehicle’s control module software if necessary.
5. Clear the DTC using an OBD-II scanner and test the seat adjustment system to ensure proper operation.

How to erase DTC B2164

To erase DTC B2164, 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.
4. Select the option to clear or erase the trouble codes.
5. Confirm the action and wait for the scanner to complete the process.
6. 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.