DTC

U0001:88

CAN system Communication error

U0100:00

Communication error to PCM

U0121:00

Communication error to DSC HU/CM

U0155:00

Communication error to instrument cluster

DETECTION CONDITION

• U0001:88

• Error detected in line between CAN connection module and CAN bus communication line

• U0100:00

• Communication error to PCM is detected in CAN communication

• U0121:00

• Communication error to DSC CM is detected in CAN communication

• U0155:00

• Communication error to instrument cluster is detected in CAN communication

FAIL-SAFE FUNCTION

• U0001:88

• Control enabled

• Power steering malfunction indicator light: Illuminated

• U0100:00

• Control is maintained by gradually changing the controlled vehicle speed and setting it to 120 km/h {74.6 mph}

• Power steering malfunction indicator light: Illuminated

• U0121:00, U0155:00

• Control enabled

• Power steering malfunction indicator light: Not illuminated

POSSIBLE CAUSE

• CAN system wiring harness open or short circuit with PCM

• CAN system wiring harness open or short circuit with DSC HU/CM

• CAN system wiring harness open or short circuit with instrument cluster

• Poor connection at connectors

SYSTEM WIRING DIAGRAM

Not applicable