Chassis, generic

C0062 Longitudinal Acceleration Sensor

Check engine lightOn
EmissionsNot relevant
Drive cycleNot required
Limp modePossible

C0062 flags the longitudinal acceleration signal, the fore-aft reading used for hill hold, grade detection, all-wheel-drive torque split and brake distribution. The module checks it against the change in wheel speed, braking and throttle and against the other inertial channels, and stores the code for a value out of range, frozen, noisy or implausible. FCA documents C0062-29, invalid signal, on the 2022 Jeep Compass with C0061-29 and C0063-29, lighting the MIL and the ESC and parking brake warnings until the ABS module receives new software (08-007-23). On the 2019 RAM 1500, FCA lists C0062 among the codes a PCM software update addresses (18-058-20). Stability and hill hold are switched off while the fault is present; normal braking remains.

Likely causes

ABS or PCM software fault (FCA 08-007-23, 18-058-20)
Longitudinal accelerometer failed
Sensor cluster loose or shifted on its mount
Harness or connector fault

Symptoms

  • Stability and hill-hold functions disabled
  • ABS/ESC warning lamp on
  • AWD behaviour may change

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€120–900
Time0.6–3 h

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

Parts involved

inertial sensor cluster

Related codes

C0061C0063C006A

References: static.nhtsa.gov, static.nhtsa.gov, rosap.ntl.bts.gov, patents.google.com.