DTC U0001:88/U0100:00/U0121:00/U0155:00 [EPS CONTROL MODULE]


id060230814600

DTC
U0001:88
CAN communication: module communication error
U0100:00
CAN communication: communication error to PCM
U0121:00
CAN communication: communication error to DSC HU/CM
U0155:00
CAN communication: communication error to instrument cluster
DETECTION CONDITION
•  U0001:88
―  Error detected in CAN bus communication line with CAN connection modules.
•  U0100:00
―  Communication error to PCM is detected in CAN communication.
•  U0121:00
―  Communication error to DSC HU/CM is detected in CAN communication.
•  U0155:00
―  Communication error to instrument cluster is detected in CAN communication.
FAIL-SAFE FUNCTION
•  Refer to “Fail-safe function table”. (See DTC TABLE [EPS CONTROL MODULE].)
POSSIBLE CAUSE
•  CAN communication line malfunction
•  CAN communication line malfunction with PCM
•  CAN communication line malfunction with DSC HU/CM
•  CAN communication line malfunction with instrument cluster
•  Instrument cluster malfunction
SYSTEM WIRING DIAGRAM


Diagnostic Procedure

•  Perform inspection according to the diagnostic procedure in MULTIPLEX COMMUNICATION SYSTEM. (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [L.H.D.].) (See CONTROLLER AREA NETWORK (CAN) MALFUNCTION DIAGNOSIS FLOW [R.H.D.].)