OBD Guide

U0125

Lost Communication With Multi-axis Acceleration Sensor Module A

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Check Engine Light Is On
  • Stabilization systems (ESP) and anti-lock braking system (ABS) may be disabled.
  • Possible errors in the operation of airbags
  • The car may hold the road worse when cornering

Causes

  • Accelerometer module malfunction
  • Open or short circuit in the sensor power supply circuit
  • Damaged wiring harness or connectors
  • Problems with the CAN bus
  • Low voltage on-board network

How to Fix

  1. Check the sensor supply voltage
  2. Inspect connectors and wiring harness for damage
  3. Check the resistance and integrity of the sensor circuits
  4. Scan other modules for CAN bus errors
  5. If necessary, replace the accelerometer module
  6. Repair only from an authorized dealer

Related codes

Error U0125 by Vehicle Brand