CONTROLLER AREA NETWORK (CAN) SYSTEM OUTLINE

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• Due to the simplification of the wiring harness, a CAN system for transmission of multiplex input/output signals among electrical modules has been adopted.

• Twisted-pair wiring is used for connections between the following modules. (Each electrical module hereafter referred to as a CAN system-related module):

― PCM

― TCM (FS5A-EL)

― EHPAS control module

― DSC HU/CM (with DSC)

― ABS HU/CM (with ABS)

― Fuel additive control module (MZ-CD 1.6 (Y6) High power-Euro 4 only)

― Keyless control module

― Instrument cluster

― PJB

― Climate control unit

― SAS control module

― Audio unit (base module)

― Information display

― Water heater unit

• With an on-board diagnostic function included for each multiplex module, display of DTCs using the Mazda Modular Diagnostic System (M-MDS) has improved serviceability.