HomeTrouble CodesB2301

B2301 — Seat Passenger Memory Position Error

Manufacturer-specificBody

Code B2301 indicates that the passenger seat memory system has detected an error while trying to store or recall a seat position. The fault is typically related to the seat memory module, position sensors, wiring, or the seat motor assembly.

Symptoms

What causes it — most likely first

1. Faulty passenger seat memory module

The module that stores and executes seat position data may have internal circuitry failure or corrupted memory.

2. Defective seat position sensor

A sensor that reports seat track position can send incorrect signals, causing the memory function to abort.

3. Wiring or connector damage in seat harness

Open circuits, shorted wires, or corroded connectors interrupt communication between the module, sensors, and motors.

4. Seat motor or gearbox malfunction

Mechanical binding or motor winding failure prevents the seat from reaching the programmed position.

5. Body control module (BCM) communication fault

If the BCM cannot exchange data with the seat memory module over the vehicle bus, the memory function will report an error.

6. Control module (PCM/ECM) fault

A primary engine control module failure causing this code is extremely rare and should only be considered after all seat‑system components are verified.

How it's diagnosed

  1. Retrieve all stored codes and note any additional seat‑system or communication codes.
  2. Inspect the passenger seat harness and connectors for damage, corrosion, or loose pins.
  3. Test seat position sensor output with a scan tool or multimeter while moving the seat manually.
  4. Command the seat memory function via the scan tool and observe motor current draw and movement.
  5. Check BCM‑to‑seat module communication on the vehicle data bus for errors or loss of messages.
  6. If all seat‑system components test good, evaluate the seat memory module for internal fault before considering any higher‑level control module.

Code facts & related codes

SystemBody
StandardizationManufacturer-specific (P1/B1/C1/U1)

Frequently asked

Is the engine control module (PCM/ECM) a common cause of B2301?

No. The PCM/ECM rarely causes this code; the fault is almost always within the seat memory module, sensors, wiring, or motors.

Can a simple battery disconnect clear the code permanently?

A battery disconnect may clear the code temporarily, but the underlying hardware fault will cause it to return once the memory function is used again.

Do I need to replace the entire seat assembly if the memory module fails?

In many vehicles the memory module is a separate replaceable unit; only replace the seat assembly if the motor or gearbox is also defective.

Will a generic OBD‑II scanner read B2301?

B2301 is a manufacturer‑specific body code; a generic scanner may not display it. A scan tool with body‑system coverage is required.