DTC U0001:88/U0100:00/U0101:00/U0121:00/U0151:00/U0155:00 [ELECTRIC PARKING BRAKE]

id040257253200

Description
•  U0001:88
?  Unit communication error (HS-CAN)
•  U0100:00
?  Communication error with PCM
•  U0101:00
?  Communication error with TCM
•  U0121:00
?  Communication error with DSC HU/CM
•  U0151:00
?  Communication error with SAS control module
•  U0155:00
?  Communication error with instrument cluster
Detection condition
•  U0001:88
?  Electric parking brake control module detects the CAN bus communication line (HS-CAN) malfunction 10 times continuously with the ignition switched ON (engine off or on).
•  U0100:00
?  Electric parking brake control module could not receive the CAN signal from the PCM with the ignition switched ON (engine off or on).
•  U0101:00
?  Electric parking brake control module could not receive the CAN signal from the TCM with the ignition switched ON (engine off or on).
•  U0121:00
?  Electric parking brake control module could not receive the CAN signal from the DSC HU/CM with the ignition switched ON (engine off or on).
•  U0151:00
?  Electric parking brake control module could not receive the CAN signal from the SAS control module with the ignition switched ON (engine off or on).
•  U0155:00
?  Electric parking brake control module could not receive the CAN signal from the instrument cluster with the ignition switched ON (engine off or on).
Fail-safe
•  U0001:88
?  Not applicable
•  U0100:00
?  Not applicable
•  U0101:00
?  Not applicable
•  U0121:00
?  Not applicable
•  U0151:00
?  Not applicable
•  U0155:00
?  Not applicable
Possible cause
•  Malfunction in CAN bus communication line
•  Malfunction in CAN communication line between PCM and electric parking brake control module
•  Malfunction in CAN communication line between TCM and electric parking brake control module
•  Malfunction in CAN communication line between DSC HU/CM and electric parking brake control module
•  Malfunction in CAN communication line between SAS control module and electric parking brake control module
•  Malfunction in CAN communication line between instrument cluster and electric parking brake control module
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.].)