Section 05 ELECTRICAL SYSTEM
Subsection 01 (CONTROLLER AREA NETWORK (CAN))
CONTROLLER AREA NETWORK (CAN)
SERVICE TOOLS
Description Part Number Page
ECM ADAPTER TOOL................................................................... 529 036 166 ......................................... 279
FLUKE 115 MULTIMETER ............................................................ 529 035 868 ......................................... 279
GENERAL
SYSTEM DESCRIPTION
The CAN (Controller Area Network) protocol is an ISO standard for serial data communication.
The CAN bus is the nervous system of the iControl system and the engine management system (EMS).
It links the electronic modules (ECU's) together so that they communicate to interact as required.
Two wires connect each component and they are in constant communication with each other at a rate
of about every 10 or 20 milliseconds depending on the component. CAN lines consist of a pair of wires
(WHITE/BLACK and WHITE/RED).
The CAN is also used to communicate with the B.U.D.S. software. Refer to
COMMUNICATION TOOLS
AND B.U.D.S. SOFTWARE
.
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CAN BUS - HI (FUSE BOX 2)
CAN BUS - LOW (FUSE BOX 2)
ECM GAUGE iS iBR
DEPTH
SOUNDER
DIAGNOSTIC
CONNECTOR
WH/RD
C7
B-C1
WH/RD
C11
2
WH/RD
C9
2
WH/RD
C10
2
WH/RD
C8
3
C12
1
WH/BK
B-C2
C1
WH/BK
3
C5
WH/BK
3
C3
WH/BK
3
C4
WH/BK
4
C2
2
C6
WH/BK = WHITE/BLANK
WH/RD = WHITE/RED
ECM Engine Control Module
iBR Intelligent Brake and Reverse module
iS Intelligent Suspension module
WH/RD
WH/BK
smr2009-027
-004_en
CAN BUS DIAGRAM
smr2009-048 277
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