DTC U0073, U0100, U0101, U0155, U1900, U2023 [DYNAMIC STABILITY CONTROL (DSC)]

id0402b2887500

DTC

U0073, U0100, U0101, U0155, U1900, U2023

CAN line system

DETECTION CONDITION

•  U0073

―  Communication error with other modules is detected in CAN communication.

•  U0100

―  Error is detected in received data from PCM in CAN communication.

•  U0101

―  Error is detected in received data from TCM in CAN communication.

•  U0155

―  Error is detected in received data from instrument cluster in CAN communication.

•  U1900

―  Error is detected in transmitted data in CAN communication.

―  CAN initialization is failure.

―  Data written to CAN main memory and those read from are not consistent.

•  U2023

―  PCM malfunction data is continuously received for 0.5 s in CAN communication.

―  Invalid accelerator opening angle signal is continuously received for 0.5 s in CAN communication.

―  Invalid engine speed signal is continuously received for 0.5 s in CAN communication.

―  Invalid reference engine torque signal is continuously received for 0.5 s in CAN communication.

―  Invalid engine torque signal is continuously received for 0.5 s in CAN communication.

FAIL-SAFE

•  Inhibits TCS control and DSC control, and illuminates DSC indicator light.

POSSIBLE CAUSE

•  Malfunction in communication line between PCM, TCM, instrument cluster, and steering angle sensor

•  Malfunction in PCM, TCM, instrument cluster, or steering angle sensor

•  Poor connection at connectors (female terminal)

Diagnostic procedure

• Inspect according to diagnostic procedure in BODY & ACCESSORIES. (See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (L.H.D.)].) (See FOREWORD [MULTIPLEX COMMUNICATION SYSTEM (R.H.D.)].)

DTC	U0073, U0100, U0101, U0155, U1900, U2023		CAN line system
DETECTION CONDITION		• U0073 ― Communication error with other modules is detected in CAN communication. • U0100 ― Error is detected in received data from PCM in CAN communication. • U0101 ― Error is detected in received data from TCM in CAN communication. • U0155 ― Error is detected in received data from instrument cluster in CAN communication. • U1900 ― Error is detected in transmitted data in CAN communication. ― CAN initialization is failure. ― Data written to CAN main memory and those read from are not consistent. • U2023 ― PCM malfunction data is continuously received for 0.5 s in CAN communication. ― Invalid accelerator opening angle signal is continuously received for 0.5 s in CAN communication. ― Invalid engine speed signal is continuously received for 0.5 s in CAN communication. ― Invalid reference engine torque signal is continuously received for 0.5 s in CAN communication. ― Invalid engine torque signal is continuously received for 0.5 s in CAN communication.
FAIL-SAFE		• Inhibits TCS control and DSC control, and illuminates DSC indicator light.
POSSIBLE CAUSE		• Malfunction in communication line between PCM, TCM, instrument cluster, and steering angle sensor • Malfunction in PCM, TCM, instrument cluster, or steering angle sensor • Poor connection at connectors (female terminal)