OBD Guide

C0553

Longitudinal Acceleration Sensor Circuit Low

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

Symptoms

  • Airbag light is on
  • Belt pretensioners do not work
  • The SRS system may turn off

Causes

  • Open or short circuit in wiring harness
  • Faulty longitudinal acceleration sensor
  • Poor contact in the sensor connector
  • Damage to wiring due to corrosion or mechanical stress

How to Fix

  1. Check the integrity of the wiring harness to the sensor
  2. Check sensor connectors for oxidation and damage
  3. Test sensor resistance
  4. Replace sensor if necessary
  5. Reset the error and check the system

Related codes

Error C0553 by Vehicle Brand