Network, generic

U0432 Invalid Data Received From Multi-axis Acceleration Sensor Module A

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modePossible

Multi-axis acceleration sensor module A is the inertial unit that reports yaw rate plus lateral and longitudinal acceleration to stability control, airbag and assistance systems. U0432 is logged when its frames arrive but fail integrity tests. In GM's 2019 tables the XT4 brake module checks the IMU frames for a rolling count that stops changing and for a checksum mismatch; the failure counter must reach 10, rising by 2 per error, the test runs continuously and is Type C without MIL. Saab's 2011 9-5 list adds subtypes 72 (counter) and 74 (checksum). GM PIT5427 ties U0432 with ABS, AWD and suspension warnings on 2010-15 Equinox and Terrain to a corroded X411 connector; FCA lists it among faults addressed by a PCM flash for the 2017 Pacifica (18-002-19). U0125 is lost contact, U0332 software.

Likely causes

Corroded connector or terminals in the sensor module harness
Software in the receiving module (PCM, brake module) needs an update
Internal fault or loose mounting of the inertial sensor module

Symptoms

  • Stability control, ABS or AWD warnings
  • Start-stop or driver assistance functions unavailable
  • Several chassis codes stored at once

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€50–650
Time0.4–2.5 h

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

Parts involved

multi axis accel module acan bus wiring

Related codes

U0125U0332U014EU0418

References: gsi.ext.gm.com, saabwisonline.com, static.nhtsa.gov, static.nhtsa.gov.