DTC U0001:88/U0100:00/U0131:00/U0140:00/U0155:00 [ADAPTIVE FRONT LIGHTING SYSTEM (AFS)]

Description	• U0001:88 ― Unit communication error (HS-CAN) • U0100:00 ― Communication error with PCM • U0131:00 ― Communication error with EPS control module • U0140:00 ― Communication error with front body control module (FBCM) • U0155:00 ― Communication error with instrument cluster
Detection condition	• U0001:88 ― AFS control module detected the CAN bus communication line (HS-CAN) malfunction 10 times continuously. • U0100:00 ― AFS control module could not receive the CAN signal from the PCM for 5 s or more. • U0131:00 ― AFS control module could not receive the CAN signal from the EPS control module for 5 s or more. • U0140:00 ― AFS control module could not receive the CAN signal from the front body control module (FBCM) for 5 s or more. • U0155:00 ― AFS control module could not receive the CAN signal from the instrument cluster for 5 s or more.
Fail-safe function	• U0001:88 ― The swivel actuator is moved to the center. ― The headlight leveling actuator is stopped at the position when the malfunction is determined. • U0100:00 ― The swivel actuator is moved to the center. ― The headlight leveling actuator is stopped at the position when the malfunction is determined. • U0131:00 ― The swivel actuator is moved to the center. ― Control of the headlight auto leveling system is continued. • U0140:00 ― The swivel actuator is moved to the center. ― The headlight leveling actuator is stopped at the position when the malfunction is determined. • U0155:00 ― The swivel actuator is moved to the center. ― 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 AFS control module • Malfunction in CAN communication line between EPS control module and AFS control module • Malfunction in CAN communication line between front body control module (FBCM) and AFS control module • Malfunction in CAN communication line between instrument cluster and AFS control module
System wiring diagram	Not applicable

• Perform the malfunction diagnosis according to the troubleshooting procedure for the multiplex communication system. (See FOREWORD [SKYACTIV-G 1.5, SKYACTIV-G 2.0, SKYACTIV-G 2.5, SKYACTIV-D 2.2 (MTX)].) (See FOREWORD [SKYACTIV-D 2.2 (ATX), MZR 1.6].) (See FOREWORD [SKYACTIV-D 1.5].)