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DTC U3003-16:: Notes

Description Auto leveling control module low power supply voltage input
Detection condition 
  • Auto leveling control module power supply circuit voltage of 9.0 V or less  is detected for 5 s or more  with the ignition switched ON (engine off or on).
Fail-safe 
  • The headlight leveling actuator is stopped at the position when the malfunction is determined.
Possible cause 
  • DTCs are stored in the PCM.
  • Battery malfunction
  • Generator malfunction
  • Auto leveling control module connector or terminal malfunction
  • Auto leveling control module power supply circuit malfunction
    • Short to ground in wiring harness between METER1 10 A fuse and auto leveling control module terminal N
    • METER1 10 A fuse malfunction
    • Open circuit in wiring harness between IG1 relay terminal C and auto leveling control module terminal N
  • Auto leveling control module malfunction
G10948940