Chassis, generic

C0552 Longitudinal Acceleration Sensor Range/Performance

Check engine lightOn
EmissionsNot relevant
Drive cycleRequired
Limp modePossible

Here the fore-aft acceleration signal arrives but does not match how the car is actually moving. Mitsubishi's 2023 Outlander PHEV brake controller reports its built-in decel G sensor fault C1071-64 as C0552; the check needs a healthy supply and takes up to 2 s, and a second faulty drive turns on the ASC and ABS warnings as well as the check-engine lamp. ASC, traction control, brake LSD, brake assist, brake force distribution and hill start assist are suspended. Mitsubishi lists altered vehicle attitude (different tyre sizes front and rear, overload) and a wrongly angled ABS unit among the causes. Patents describe the test: Sumitomo (now Advics) relates the sensor value to the derivative of the fastest wheel speed and, after repeated misfits, has ABS use wheel data only; Bosch adds offset and range checks on straight roads.

Likely causes

Changed vehicle attitude, e.g. different tyre sizes front and rear or overload
ABS/ESC unit or sensor mounted at the wrong angle or loose
Sensor offset drifted or internal sensor defect
Faulty wheel speed data used as comparison value

Symptoms

  • ESC/ASC and ABS warning lamps on, MIL possible on some models
  • Stability control, traction control and hill start assist switched off
  • Fault returns after load or tyre changes

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€0–1,200
Time0.3–2.5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

longitudinal accel sensor

Related codes

C0551C0553C0554C0062C0069

References: mitsubishitechinfo.com, mitsubishitechinfo.com, patents.google.com, patents.google.com.