jcb JS300 Service Manual page 463

CANbus Communications System
C Controller
A Area
N Network
1
12
8
9
10
Item Description
1 Engine ECU
2
Livelink ECU (if fitted) (bound)
3 Display ECU (DECU) (bound)
4 Automatic Temperature Control (ATC) ECU (if fitted)
5 Machine control ECU (MECU)
6 Hydraulic control ECU (HECU) (if fitted)
7 Servicemaster diagnostics connector (cab fuse and relay
PCB)
8 CANbus wires - machine CANbus
9 CAN termination resistors
10 Diagnostics connector
11 Variable Geometry Turbocharger (VGT) controller
12 CANbus wires - engine CANbus
13 CAN termination resistors
(1) The ECU is 'bound' on the CANbus. Refer to 'ECU Set-up' for information about bound ECU's.
C-38
2
11
13
6
13
7
Fig 1. CANbus System
(1)
(1)
An electronic communications system that connects all the
machine ECU's to one pair of data wires called the
CANbus. Coded data is sent to and from the ECU's on the
CANbus.
By connecting Servicemaster diagnostic software to the
CANbus, data is seen and decoded for use by a service
engineer.
3
5
Harness Connectors
C001
C129
C109 J1
C071
C015 J1
C153 J1
-
C200, C002
C266
IC21
C304, C303
9813/5100-1
Section C - Electrics
Electronic Controllers
CANbus System
4
9
C128140-C4
C-38