DTC U0001:88/U0100:00/U0101:00/U0121:00 [ELECTRONIC 4WD CONTROL SYSTEM]

id0302a6200800

DTC U0001:88
CAN line
DTC U0100:00
DTC U0101:00
DTC U0121:00
DETECTION CONDITION
•  U0001:88
―  Open or short circuit in CAN system wiring harness is detected.
•  U0100:00
―  Communication error with PCM is detected in CAN communication.
•  U0101:00
―  Communication error with TCM is detected in CAN communication.
•  U0121:00
―  Communication error to DSC HU/CM is detected in CAN communication
FAIL-SAFE FUNCTION
•  Refer to “Fail-safe function table”. (See DTC TABLE [ELECTRONIC 4WD CONTROL SYSTEM].)
POSSIBLE CAUSE
•  CAN system wiring harness open or short circuit
•  CAN system wiring harness open or short circuit with PCM
•  CAN system wiring harness open or short circuit with TCM
•  CAN system wiring harness open or short circuit with DSC HU/CM
SYSTEM WIRING DIAGRAM
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Diagnostic Procedure

•  Perform inspection according to the diagnostic procedure in MULTIPLEX COMMUNICATION SYSTEM. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [SKYACTIV-G 2.0/2.5, SKYACTIV-D 2.2 (MTX) (L.H.D.)].) (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [SKYACTIV-G 2.0/2.5, SKYACTIV-D 2.2 (MTX) (R.H.D.)].) (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [SKYACTIV-D 2.2 (ATX) (L.H.D.)].) (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [SKYACTIV-D 2.2 (ATX) (R.H.D.)].)