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

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2016 – MX-5 – Steering

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

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

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

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