DTC U0001:88/U0100:00/U0101:00/U0121:00/U0131:00/U0140:00/U0151:00/U0155:00/U0182:00/U0214:00/U0235:00/U023A:00 [CONNECTIVITY MASTER UNIT]

id0902n7073000

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 DSC HU/CM
•  U0131:00
?  Communication error with electric power steering (EPS) control module
•  U0140:00
?  Communication error with front body control module (FBCM)
•  U0151:00
?  Communication error with SAS control module
•  U0155:00
?  Communication error with instrument cluster
•  U0182:00
?  Communication error with auto leveling control module or adaptive LED headlights control module
•  U0214:00
?  Communication error with start stop unit
•  U0235:00
?  Communication error with laser sensor/forward sensing camera (FSC)
•  U023A:00
?  Communication error with forward sensing camera (FSC)
Detection condition
•  U0001:88
?  With the ignition switched ON (engine off or on), the connectivity master unit (CMU) cannot detect a CAN bus communication line (HS-CAN) signal for 1 s or more.
?  With the ignition switched ON (engine off or on), the connectivity master unit (CMU) detects malfunction in the CAN bus communication line (HS-CAN) 10 times continuously.
•  U0100:00
?  With the ignition switched ON (engine off or on), the connectivity master unit (CMU) cannot receive a CAN signal from the PCM for 5 s or more.
•  U0101:00
?  With the ignition switched ON (engine off or on), the connectivity master unit (CMU) cannot receive a CAN signal from the TCM for 5 s or more.
•  U0121:00
?  With the ignition switched ON (engine off or on), the connectivity master unit (CMU) cannot receive a CAN signal from the DSC HU/CM for 5 s or more.
•  U0131:00
?  With the ignition switched ON (engine off or on), the connectivity master unit (CMU) cannot receive a CAN signal from the electric power steering (EPS) control module for 5 s or more.
•  U0140:00
?  With the ignition switched ON (engine off or on), the connectivity master unit (CMU) cannot receive a CAN signal from the front body control module (FBCM) for 5 s or more.
•  U0151:00
?  With the ignition switched ON (engine off or on), the connectivity master unit (CMU) cannot receive a CAN signal from the SAS control module for 5 s or more.
•  U0155:00
?  With the ignition switched ON (engine off or on), the connectivity master unit (CMU) cannot receive a CAN signal from the instrument cluster for 5 s or more.
•  U0182:00
?  With the ignition switched ON (engine off or on), the connectivity master unit (CMU) cannot receive a CAN signal from the auto leveling control module or adaptive LED headlights control module for 5 s or more.
•  U0214:00
?  With the ignition switched ON (engine off or on), the connectivity master unit (CMU) cannot receive a CAN signal from the start stop unit for 5 s or more.
•  U0235:00
?  With the ignition switched ON (engine off or on), the connectivity master unit (CMU) cannot receive a CAN signal from the laser sensor/forward sensing camera (FSC) for 5 s or more.
•  U023A:00
?  With the ignition switched ON (engine off or on), the connectivity master unit (CMU) cannot receive a CAN signal from the forward sensing camera (FSC) for 5 s or more.
Fail-safe
•  U0001:88
?  Not applicable
•  U0100:00
?  Not applicable
•  U0101:00
?  Not applicable
•  U0121:00
?  Not applicable
•  U0131:00
?  Not applicable
•  U0140:00
?  Not applicable
•  U0151:00
?  Not applicable
•  U0155:00
?  Not applicable
•  U0182:00
?  Not applicable
•  U0214:00
?  Not applicable
•  U0235:00
?  Not applicable
•  U023A:00
?  Not applicable
Possible cause
•  Malfunction in CAN bus communication line
•  Malfunction in CAN communication line between the PCM and connectivity master unit (CMU)
•  Malfunction in CAN communication line between the TCM and connectivity master unit (CMU)
•  Malfunction in CAN communication line between the DSC HU/CM and connectivity master unit (CMU)
•  Malfunction in CAN communication line between the electric power steering (EPS) control module and connectivity master unit (CMU)
•  Malfunction in CAN communication line between the front body control module (FBCM) and connectivity master unit (CMU)
•  Malfunction in CAN communication line between the SAS control module and connectivity master unit (CMU)
•  Malfunction in CAN communication line between the instrument cluster and connectivity master unit (CMU)
•  Malfunction in CAN communication line between the auto leveling control module or adaptive LED headlights control module and connectivity master unit (CMU)
•  Malfunction in CAN communication line between the start stop unit and connectivity master unit (CMU)
•  Malfunction in CAN communication line between the laser sensor and connectivity master unit (CMU)
•  Malfunction in CAN communication line between the forward sensing camera (FSC) and connectivity master unit (CMU)
System wiring diagram
Not applicable
Diagnostic Procedure
•  Perform the malfunction diagnosis according to the troubleshooting procedure for the multiplex communication system. (See FOREWORD [L.H.D.].) (See FOREWORD [R.H.D.].)