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DTC U0010:88, U0155:00 [CLIMATE CONTROL UNIT (FULL-AUTO AIR CONDITIONER)]

System malfunction location

  • U0010:88: Unit communication error (MS-CAN)

  • U0155:00: Communication error with instrument cluster

Detection condition

    U0010:88

  • The climate control unit detects a CAN bus communication line (MS-CAN) malfunction.

    U0155:00

  • The climate control unit could not receive CAN signal from the instrument cluster for 5 s or more.

Fail-safe function

Not applicable

Possible cause

  • Malfunction in CAN bus communication line

  • Malfunction in CAN line between the climate control unit and instrument cluster

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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Free to use workshop manual for your 2015+ Mk4 'ND' Mazda MX-5

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