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Automotive Electricians Portal FZCO
Automotive Electricians Portal FZCO
Wiring diagramComponents
| Component code | Name | Assembly reference |
| B1 | Junction unit | B5 | MAXI FUSE box | B26 | Fuse power supply ignition operated excl ignition (INT/A) | - |
| B26 | Fuse power supply ignition operated excl ignition (INT/A) | - |
| C10 | Left front earth | - |
| C10 | Left front earth | - |
| C15 | Facia earth, driver's side | - |
| C20 | Passenger side dashboard earth | - |
| H1 | Ignition switch | H5 | Stalk unit | H5 | Stalk unit | N15 | Windscreen wiper motor | N22 | Windscreen/rear window pump motor | 2891843Op. 5050B WINDSCREEN WASH/WIPE |
Location of componentsComponents
| Component code | Name | Assembly reference |
| B1 | Junction unit | B5 | MAXI FUSE box | B26 | Fuse power supply ignition operated excl ignition (INT/A) | - |
| B26 | Fuse power supply ignition operated excl ignition (INT/A) | - |
| C10 | Left front earth | - |
| C10 | Left front earth | - |
| C15 | Facia earth, driver's side | - |
| C20 | Passenger side dashboard earth | - |
| H1 | Ignition switch | H5 | Stalk unit | H5 | Stalk unit | N15 | Windscreen wiper motor | N22 | Windscreen/rear window pump motor | 2891843Op. 5050B WINDSCREEN WASH/WIPE |
DescriptionThe windscreen wash/wipe system is operated by a stalk switch on the right side of the steering wheel. The stalk switch can be set to five positions that correspond to different functions:windscreen wiper off (standstill);intermittent operation;continuous slow operation;continuous medium-fast operation;temporary fast operation (unstable stalk position).
The windscreen wiper function is operated by pulling the stalk switch slightly toward the steering wheel. This action operates the washer pump. If the stalk switch is held in position, the windscreen wiper also operates (continuous operation). The windscreen wiper carries on working for a few sweeps after the stalk switch is released.The windscreen wiper and washer can be operated with the ignition key turned to ON.The operation of the windscreen wiper is governed by an electronic device, inside the motor, which produces the intermittent function and controls the operation of the actual windscreen wiper motor.The windscreen wash/wipe circuit is protected by a specific fuse and is operated by the ignition-operated relay located in the junction unit.
Functional description The windscreen wiper stalk of the stalk unit H5selects the various operating modes of the windscreen wash/wipe. The stalk unit H5 is supplied at pin 3 of connector D from the ignition-operated line (INT/A) of the relay R1 protected by the fuse F14: both are contained in the junction unit B1. The supply for the relay R1 comes from the direct line of the maxifuse J/B1 of B5, whilst the coil is supplied by the line (INT/A) protected by the fuse B26.Depending on the pre-selected function, the stalk unit H5 (connector A) sends the following control signals to the internal electronic device to the windscreen wiper motor N15:from pin 2 for continuous fast operation: the signal reaches the motor directly;from pins 3, 4 for continuous slow and medium-fast operation: the signal arrives from the intermittent device and is then sent to the motor
The windscreen wiper motor N15 is then connected to earth. It consists of the actual geared motor, the end of travel contacts and the electronic adjustment and control device. When operated, the windscreen washer switch on the steering column switch unit H5, sends two signals from pin 8 and pin 9 of connector A, which reach the pump for operating the windscreen washer N22 directly (the operation of this pump N22 in the opposite direction operates the "rearscreen washer" function: See E3021 REAR WINDOW WASH/WIPE ).
Fuse power supply ignition operated excl ignition (INT/A)
B026
B026
B026
B026
B026
Left front earth
C010A
C010B
C010C
C010C
C010D
C010D
C010A
C010A
C010A
C010A
C010A
C010A
C010A
C010A
Facia earth, driver's side
C015A
C015A
C015B
C015B
C015
C015A
C015A
C015B
C015B
C015
Passenger side dashboard earth
C020
C020
C020
C020
C020
Ignition switch
H001A
H001A
H001A
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
Ignition switch
H001A
H001A
H001A
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
Ignition switch
H001A
H001A
H001A
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
Ignition switch
H001A
H001A
H001A
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
H001B
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