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DTC U0001:88/U0100:00/U0121:00/U0155:00/U0214:00 [BLIND SPOT MONITORING (BSM) CONTROL MODULE]

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2016 – MX-5 – i-ACTIVSENSE

DTC U0001:88/U0100:00/U0121:00/U0155:00/U0214:00 [BLIND SPOT MONITORING (BSM) CONTROL MODULE]

Description

  • U0001:88

    • Unit communication error (MS-CAN)

  • U0100:00

    • Communication error with PCM

  • U0121:00

    • Communication error with DSC HU/CM

  • U0155:00

    • Communication error with instrument cluster

  • U0214:00

    • Communication error with start stop unit

Detection condition

  • U0001:88

    • Blind spot monitoring (BSM) control module (LH) detects a CAN bus communication line (MS-CAN) malfunction with the ignition switched ON (engine off or on).

  • U0100:00

    • Blind spot monitoring (BSM) control module (LH) cannot receive the CAN signal from the PCM for 2 s or more with the ignition switched ON (engine off or on).

  • U0121:00

    • Blind spot monitoring (BSM) control module (LH) cannot receive the CAN signal from the DSC HU/CM for 2 s or more with the ignition switched ON (engine off or on).

  • U0155:00

    • Blind spot monitoring (BSM) control module (LH) cannot receive the CAN signal from the instrument cluster for 2 s or more with the ignition switched ON (engine off or on).

  • U0214:00

    • Blind spot monitoring (BSM) control module (LH) cannot receive the CAN signal from the start stop unit for 2 s or more with the ignition switched ON (engine off or on).

Fail-safe

  • U0001:88

    • Blind spot monitoring (BSM) system is stopped.

  • U0100:00

    • Blind spot monitoring (BSM) system is stopped.

  • U0121:00

    • Blind spot monitoring (BSM) system is stopped.

  • U0155:00

    • Blind spot monitoring (BSM) system is stopped.

  • U0214:00

    • Blind spot monitoring (BSM) system is stopped.

Possible cause

  • Malfunction in CAN bus communication line

  • Malfunction in CAN communication line between PCM and blind spot monitoring (BSM) control module (LH)

    • Instrument cluster communication error (vehicle speed signal is not sent via instrument cluster from PCM)

  • Malfunction in CAN communication line between DSC HU/CM and blind spot monitoring (BSM) control module (LH)

    • Instrument cluster communication error (yaw rate signal is not sent via instrument cluster from DSC HU/CM)

  • Malfunction in CAN communication line between instrument cluster and blind spot monitoring (BSM) control module (LH)

  • Malfunction in CAN communication line between start stop unit and blind spot monitoring (BSM) control module (LH)

    • Instrument cluster communication error (turn switch signal is not sent via instrument cluster from start stop unit)

System wiring diagram

Not applicable

Diagnostic Procedure

  • Perform the malfunction diagnosis according to the troubleshooting procedure for the multiplex communication system. (See FOREWORD.)

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