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U0213

Lost Communication with Mirror Control Module

The body bus has lost the exterior mirror module. Folding, heating, dimming or memory functions of the mirrors stop working.

  • Check engine light: Not always
  • Emissions related: No
  • Repair difficulty: medium

Symptoms

  • Multiple warning lights may illuminate
  • Affected modules may go into limp mode or shut down
  • Specific functions inoperative depending on module
  • Diagnostic tools may show communication faults

Common causes

Ordered by how often each turns out to be the cause.

  • LIN wire to mirror openCommon
  • Gateway module routing CAN messages incorrectlyLess likely
  • CAN terminating resistor (120 Ω) drifted out of specLess likely

Parts involved

  • Mirror Module
  • LIN Wiring

U0213 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.