LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mazda >> 2021 >> CX-30 Turbo >> Repair and Diagnosis >> External Pages >> Different car >> Section 48 (On-Board Diagnostic - Auto Leveling Control Module) >> DTC U212A-87: Communication Error With Light Control Module (LH) (Auto Leveling Control Module) >> Outline
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC U212A-87: Communication Error With Light Control Module (LH) (Auto Leveling Control Module): Outline

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.
DTC U212A:87 (AUTO LEVELING CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Communication error with light control module (LH)
Detection condition
  • The auto leveling control module cannot receive CAN signal from the light control module (LH).
Fail-safe
  • Control of the headlight auto leveling system is continued.
Possible cause
  • Malfunction in CAN communication line between light control module (LH) and auto leveling control module
System wiring diagram Not applicable