Winnebago 1987-1989 LeSharo Service Manual page 643

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SHOOTING
GUIDE
POSSIBLE CAUSE
REMEDY No voltage at either bro ••n wire of 14 pin
Check for correct power source, blown fuse,
ng harness.
broken red wire.
broken brown wire(s) or
loose connections. Replace, repair, or tighten
System will not engage if vehicle is Poor electrical ground connection at Check light green wire
&
its eyelet terminal
servo and/or servo bracket
Tighten
"servo-to- bra cke!" nut. Tighten
body"
screws
(this
is
part of
Switch or Switch •• im-
electrical ground return circuit).
switch "CLOSEO" when
Adjust switch. Must be "cloaed" when brake
h is depressed.
or clutch pedal is released.
r no vacuum.
Check for pinched or disconnected vacuum
hoses.
See "Electrical Check", and Schematic.
ed wire.
Check for short(s). Replace fuse (5 amp max.)
y.
Replace Control Switch. For Control Switch
check. see end of "Trouble Shooting", "Con-
trol Switch".
ulty. No continuity
Replace Signal Generator.
grey wire.
At regulator, electrical terminals in 14-pin
Bend contacts up slightly with small
wiring harness not making
sharp probe. Must be above smalt plastic
rinted circuit board
separators of main wiring harness 14-pin connector body.
et too high.
Turn "low speed .wltch adj" counterclock-
wise "Road Test".
nected.
Check cable connections at servo and at
le
faulty.
Replace electronic regulator.
dump valve
Ground light green wires to vehicle's
rness not grounded.
chassis.
ive (coil open or
Electrical Check - Unplug connector from regulator and check continuity between term
#8 (pink) and
#
1 (It. green). If circuit is open, check ground of light green wire at dump
valve and connection of pink wire. If connec- tions ok and circuit open, replace dump valve.
Leak Check - Disconnect pink wire from main
wiring harness and apply 12 V. to dump valve wire. Unplug large hose from aervo, suck on
hose and seal end with tongue. If vacuum can- not be held, replace dump valve.
No Clearance at carburetor end of
Adjust slack at throttle lever.
Servo faulty.
Replace servo. Servo faulty. Replace Servo.
Electronic regulator faulty.
Replace electronic regulator. Poor electrical ground connection at Check light green wire
&
ita eyelet terminal.
bracket.
Tighten "servo-to-bracket~ nut. Tighten
"bracket-to-body" screws. (This is part of
electrical ground return circuit.)
y.
Replace Control Switch. For Control Switch
Check, see end of "Trouble Shooting", "Con-
trol Switch".
Disengagement Switches improperly ad-
Adjust swltch(S). Must be
"OPEN" when
justed. Switches closed when brake and/or
brake pedal or clutch pedal is depressed.
ressed.
Servo cable kinked or binding.
Replace servo cable. Replace servo.
Disengagement Swltch(s) faulty (electrlca'
Replace switch(s) assembly. system
disengageS.
Then
portion only on brake)
brake and
or clutch pedal
and
Electronic regulator faulty.
Replace electronic regulator.
.J
02-9