Harness Drawing List - jcb JS300 Service Manual

Drawings are reproduced from production electrical
harness drawings. Each harness drawing includes tables
showing wire connections and destinations for all the
connectors on the harness.
Harness No.
1 Cab
334/8655
Main components connected to this harness: Printed Circuit Board (PCB) mounted fuses and
2 Facia
333/K9798
Main components connected to this harness: Facia switches
3 Revolving Chassis
334/J9834
Main components connected to this harness: Gearbox control solenoids
4 Boom
C-160

Harness Drawing List

The harness number refers to and corresponds with the
annotations in the drawing.
Refer to the table for the connector code key.
K Connector Codes ( T C-186)
Issue Remarks
1
relays
LH joystick
RH joystick
Heating Ventilation and Air Conditioning (HVAC)
unit
Machine ECU (MECU)
Hydraulic ECU (HECU)
Hydraulic control valve solenoids
Throttle control unit
Ignition switch
1
Multi function display
CANbus termination resistor
Livelink ECU (if fitted)
T2 Engines (JCB 672)
Hydraulic control valve solenoids
Alternator
TMAF sensor
Engine cooling fan
Starter motor
Engine oil level switch
AC compressor clutch
Engine fuses and relays module
Voltage converter
Primary fuses
Engine ECU
CANbus termination resistor
Fuel lift pump
Water In Fuel (WIF) sensor
9813/5100-1
Section C - Electrics
Harness Systems
Harness Drawing List
K Fig 5. ( T C-154)
Drawing
K Fig 7. ( T C-163)
K Fig 16. ( T C-172)
K Fig 18. ( T C-174)
C-160