DTC U0001:88/U0100:00/U0140:00/U0155:00 [HEADLIGHT AUTO LEVELING SYSTEM]

id0902i7073100

Description	•  U0001:88 ―  Unit communication error (HS-CAN) •  U0100:00 ―  Communication error with PCM •  U0140:00 ―  Communication error with BCM •  U0155:00 ―  Communication error with instrument cluster
Detection condition	•  U0001:88 ―  Auto leveling control module detected the CAN bus communication line (HS-CAN) malfunction 10 times continuously. •  U0100:00 ―  Auto leveling control module could not receive the CAN signal from the PCM for 5 s or more. •  U0140:00 ―  Auto leveling control module could not receive the CAN signal from the BCM for 5 s or more. •  U0155:00 ―  Auto leveling control module could not receive the CAN signal from the instrument cluster for 5 s or more.
Fail-safe	•  U0001:88 ―  The headlight leveling actuator is stopped at the position when the malfunction is determined. •  U0100:00 ―  The headlight leveling actuator is stopped at the position when the malfunction is determined. •  U0140:00 ―  The headlight leveling actuator is stopped at the position when the malfunction is determined. •  U0155:00 ―  Control of the headlight auto leveling system is continued.
Possible cause	•  Malfunction in CAN bus communication line •  Malfunction in CAN communication line between PCM and auto leveling control module •  Malfunction in CAN communication line between BCM and auto leveling control module •  Malfunction in CAN communication line between instrument cluster and auto leveling control module
System wiring diagram	Not applicable

Diagnostic Procedure