Network, generic

U0462 Invalid Data Received From Compass Module

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

The compass module measures the earth's magnetic field, usually with two perpendicular sensors in the interior mirror or overhead console, and sends the heading to a display or navigation unit. Gentex patented a mirror compass of this kind with automatic calibration, compensation for magnetic disturbances inside the car and a link to the vehicle bus. U0462 is set when the receiving unit, for instance the instrument cluster, still gets compass messages but rejects them, for example because a counter or checksum fails or a value lies outside the possible range; if the messages stop, U0161 applies. No manufacturer documents U0462 publicly. The heading may show dashes or jump about; recalibration after a magnetic disturbance or a battery change sometimes helps. Driving is not affected and no MIL lights.

Likely causes

Compass calibration lost or disturbed by magnetic influences, for example after a battery change or roof-mounted accessories
Loose plug at the interior mirror or overhead console
Internal fault of the compass module or mirror electronics

Symptoms

  • Compass display shows dashes or wrong heading
  • Heading jumps while driving

Repair estimate

DifficultyEasyDIY possible
Parts and labour€0–400
Time0.2–1 h

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

Parts involved

compass module

Related codes

U0161U0463U0464

References: patents.google.com, autosar.org.