DTC U0001:88/U0100:00/U0101:00/U0121:00/U0151:00/U0155:00/U0214:00/U023A:00 [BCM]

id0902f5073200

Description	•  U0001:88 ―  Module communication error (HS-CAN) •  U0100:00 ―  Communication error with PCM •  U0101:00 ―  Communication error with TCM •  U0121:00 ―  Communication error with ABS HU/CM or DSC HU/CM •  U0151:00 ―  Communication error with SAS control module •  U0155:00 ―  Communication error with instrument cluster •  U0214:00 ―  Communication error with start stop unit •  U023A:00 ―  Communication error with forward sensing camera (FSC)
Detection condition	•  U0001:88 ―  BCM detects the CAN bus communication line (HS-CAN) malfunction 10 times continuously with the ignition switched ON (engine off or on). •  U0100:00 ―  BCM could not receive the CAN signal from the PCM for 5 s or more with the ignition switched ON (engine off or on). •  U0101:00 ―  BCM could not receive the CAN signal from the TCM for 5 s or more with the ignition switched ON (engine off or on). •  U0121:00 ―  BCM could not receive the CAN signal from the ABS HU/CM or DSC HU/CM for 5 s or more with the ignition switched ON (engine off or on). •  U0151:00 ―  BCM could not receive the CAN signal from the SAS control module for 5 s or more with the ignition switched ON (engine off or on). •  U0155:00 ―  BCM could not receive the CAN signal from the instrument cluster for 5 s or more with the ignition switched ON (engine off or on). •  U0214:00 ―  BCM could not receive the CAN signal from the start stop unit for 5 s or more with the ignition switched ON (engine off or on). •  U023A:00 ―  BCM could not receive the CAN signal from the forward sensing camera (FSC) for 5 s or more with the ignition switched ON (engine off or on).
Fail-safe	•  U0001:88 Exterior lighting system ―  Turn the TNS and headlights LO on, and turn off other exterior light controls. Auto light system ―  Continue the controls prior to the auto light malfunction detection. Interior light control system ―  Continue the controls prior to the interior light malfunction detection for 5 s and turn the light on using the initial value after 5 s have elapsed. Windshield wiper system ―  Continue the controls prior to the windshield wiper malfunction detection. Front washer system ―  Stop the front washer control. Auto wiper system ―  Continue the controls prior to the windshield wiper malfunction detection. Blower system ―  BCM power supply condition is on: Turn the blower relay on. ―  BCM power supply condition is off: Turn the blower relay off. •  U0100:00 Auto light system ―  Continue the controls prior to the auto light malfunction detection. •  U0101:00 ―  Not applicable •  U0121:00 ―  Not applicable •  U0151:00 ―  Not applicable •  U0155:00 Interior light control system ―  Continue the controls prior to the interior light malfunction detection for 5 s and turn the light on using the initial value after 5 s have elapsed. Blower system ―  BCM power supply condition is on: Turn the blower relay on. ―  BCM power supply condition is off: Turn the blower relay off. •  U0214:00 Exterior lighting system ―  Turn the TNS and headlights LO on, and turn off other exterior light controls. Auto light system ―  Continue the controls prior to the auto light malfunction detection. Windshield wiper system ―  Continue the controls prior to the windshield wiper malfunction detection. Front washer system ―  Stop the front washer control. Auto wiper system ―  Continue the controls prior to the windshield wiper malfunction detection. •  U023A:00 ―  Not applicable
Possible cause	•  Malfunction in CAN bus communication line •  Malfunction in CAN line between PCM and BCM •  Malfunction in CAN line between TCM and BCM •  Malfunction in CAN line between ABS HU/CM or DSC HU/CM and BCM •  Malfunction in CAN line between SAS control module and BCM •  Malfunction in CAN line between instrument cluster and BCM •  Malfunction in CAN line between start stop unit and BCM •  Malfunction in CAN line between forward sensing camera (FSC) and BCM
System wiring diagram	Not applicable

Diagnostic Procedure