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Home >> Mazda >> 2021 >> 3 Select, 4D Hatchback, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Headlights >> On-Board Diagnostic - Auto Leveling Control Module >> DTC U0001-88: Unit Communication Error (HS-Can) [Auto Leveling Control Module] >> Outline
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DTC U0001-88: Unit Communication Error (HS-Can) [Auto Leveling Control Module]: Outline

DTC U0001:88 (AUTO LEVELING CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Unit communication error (HS-CAN)
Detection condition  
  • The auto leveling control module detected CAN BUS communication line (HS-CAN) malfunction 10 times continuously.
Fail-safe  
  • The headlight leveling actuator is stopped at the position when the malfunction is determined.
Possible cause  
  • Malfunction in CAN BUS communication line
System wiring diagram Not applicable