Mazda CX-5 Service & Repair Manual: Multiplex Communication System
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A controller area network (CAN) system has been adopted in which multiplex communication is performed using a single communication path.
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A high-speed controller area network (HS-CAN) has been adopted for the communication between the following modules:
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PCM
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DSC HU/CM
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TCM (ATX vehicles)
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Front body control module (FBCM)
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AFS control module (with AFS system)
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AWD control module (AWD vehicles)
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Start stop unit
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EPS control module
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SAS control module
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Instrument cluster
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A mid-speed controller area network (MS-CAN) has been adopted for the communication between the following modules:
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Rear body control module (RBCM)
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BSM control module (LH) (with BSM system)
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BSM control module (RH) (with BSM system)
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SIRIUS satellite radio unit (with SIRIUS satellite radio system)
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Climate control unit (with full-auto air conditioner)
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Clock (with manual air conditioner)
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Audio unit (with audio unit (color LCD))
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Instrument cluster
Main Relay Control [Skyactiv G 2.0]
Outline
Supplies power to each part by switching the main relay on/off at the optimal
timing according to the vehicle conditions.
Block Diagram
Operation
When the ignition ...
On Board Diagnostic System PID/Data Monitor Inspection [Fw6 A EL, Fw6 Ax EL]
1. Connect the M-MDS to the DLC-2.
2. After the vehicle is identified, select the following items from the initialization
screen of the M-MDS.
a. Select “DataLogger”.
b. Select “Modules ...
Other materials:
Battery Runs Out
Jump-Starting
Jump-starting is dangerous if done incorrectly. So follow the procedure carefully.
If you feel unsure about jump-starting, we strongly recommend that you have a competent
service technician do the work.
WARNING
Follow These Precautions Carefully:
To ensure safe and correct ...
Fan Switch Inspection [Manual Air Conditioner]
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Shift lever knob (MTX).
b. Glove compartment.
c. Front console box.
d. Shift panel.
e. Upper panel.
f. Rear console.
g. Side wall.
h. Decoration panel.
i. Front console.
3. Remove the climate control u ...
Controller Area Network (Can)
Outline
The DSC HU/CM sends and receives data to and from other modules via the CAN
system. Refer to MULTIPLEX COMMUNICATION SYSTEM for a detailed explanation of
the CAN system..
Data sent
Cruise control system-related information
DSC system-related information
...
