Johnston VT551 - Relays;Fuses and Connector Refs.

Relays
Ident. Description / Function Circuit(s) Ref. Location Notes
R1
Main Power Relay
Fuses 01-03
SE302 Relay Box
R2
Main Power Relay
Fuses 05-08
SE302 Relay Box
R3
Main Power Relay
Fuses 09-12
SE302 Relay Box
R4
Main Power Relay
Fuses 13-14
SE302 Relay Box
R5
Auxiliary Engine Cranking Power
Active with signal from CANView
SE302 Relay Box
R6
Beacon Power
Active with Beacon / Additional Beacon switch
SE302 Relay Box
R7 Not fitted
R8 Not fitted
R9
LH Worklamp Power
Active with Worklamp / Additional Worklamp switch
and Sweep Select Switch in LH or Dual mode
SE302 Relay Box
R10
RH Worklamp Power
Active with Worklamp / Additional Worklamp switch
and Sweep Select Switch in RH or Dual mode
SE302 Relay Box
R11
Battery Charge Changeover
Relay Box
R12
Additional Beacon Power
Active with Additional Beacon switch
SE302 Relay Box
R13
Additional Worklamp Power
Active with Additional Worklamp Switch
SE302 Relay Box
R14
Heat Start
Active with Heatstart Signal
SE302 Relay Box
Page Issue 01Chapter - Electrical System9:4
VT551 - Maintenance
Ref WD 227 issue 01
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