Rolls-Royce Corniche - Off Position; Key for Figures M80 to M84 Wiring Diagrams

Workshop Manual
Rolls- Royce Silver Shadow B Bentley T Series
Chapter M
Windscreen Wipers, Motors and Washers Fault Diagnosis (Refer to Figs. M80 - 84)
Symptom
Wash cycle inoperative,
wipe cycle satisfactory.
Normal and Fast speed
wipers satisfactory.
Possible Cause
Wasl~er motor faulty.
Wash/.'i~ipe switch faulty
Wash/wipe inoperative.
Normal and intermittent
wipe cycles satisfactory.
Faulty earth from
washlwipe
switch.
Faulty supply.
Action
Check for supply at washer motor terminals
and also for correct polarity. Check the
fluid level in the container and examine the
jets and tubing for blockage and/or leaks.
Check for live feed at
14G cable at washer
bottle,
toeboard socket D and wiper switch.
Connect
14GB cable at washer motor to
earth. With 14G connection 'live', the washer
should operate indicating a faulty wash/wipe
1 switch.
Check
14B cable at washiwipe socket and
0
I left-hand 'A' post upper earth point.
L I
FIG. M80 'OFF' POSITION
KEY FOR FIGURES
M80 TO M84
WIRING DIAGRAMS
Washer motor
'Park on screen' switch
( Integral with motor)
Wiper motor
'Park off screen' switch (Integral with motor)
Wiper motor sockets
Right-hand valance earth
Toeboard sockets (A & D left-hand, H €4 K right-
hand)
Left-hand 'A' post upper earth (Right-hand for
RHD cars)
Wash/Wipe unit
Right-hand 'A' post upper earth (Left-hand for
RHD cars)
Washer switch
Intermittent wipe unit
Fuse
2
Wipe switch