Land Rover Workshop Service and Repair Manuals

CENTRAL JUNCTION BOX 

The CJB is an integrated unit located behind the fascia on the passenger side of the bulkhead. The CJB contains fuses, 
relays and a number of microprocessors, which control the power supply and functionality of the wash/wipe system and 
other vehicle systems. 
 

Inputs and Outputs 

The CJB receives and sends the following wiper and washer system inputs and outputs: 
 

FRONT WIPER ASSEMBLY 

The front wiper assembly comprises: 
 

Wiper motor and linkage assembly  
Wiper arms and blades  
Washer reservoir and pumps.  

Wiper Linkage 

Inputs 

Outputs 

Intermittent front wipe switch 

Front wiper motor (normal) 

Rear wipe park switch 

Front wiper motor (fast) 

Rain/light sensor, if fitted 

Washer motors 

Normal (slow) speed continuous switch  Heated washer jets (if fitted) 

Fast speed continuous switch 

Rear wiper motor relay 

Flick wipe switch 

Headlamp power wash motor 

Front screen wash switch 

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Rear screen wash switch 

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Ignition switch 

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Lighting switch 

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Low level reservoir status, via CAN 

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Vehicle speed, via CAN 

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Front wiper motor park switch 

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Reverse switch, via CAN 

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Tail gate open switch 

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Ambient temperature, via CAN 

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