ALL FUNCTIONS OKAY EXCEPT INTERMITTENT WIPE
1) If blades stop and start erratically, test circuit
breaker. If okay, check wiper switch continuity. If continuity is
present, check continuity of wiring between switch, governor and
ground. Repair wiring or replace governor as necessary.
2) If operation is intermittent on low speed only, check for
loose connections at governor by disconnecting governor and connecting
switch directly to instrument panel harness.
3) If all functions except pulse and mist work, replace
governor. If functions are not okay, recheck wiring and replace
governor.
WINDSHIELD WASHER DOES NOT OPERATE
1) If motor runs but does not pump, check fluid level. If
level is okay, check for split, loose, pinched or kinked hoses. Check
for restrictions at nozzles. Check for reversed wire leads to motor.
2) If motor does not run, check for blown fuse. Replace fuse,
if necessary. If fuse is okay, disconnect plug at reservoir and check
for power by connecting a test light across connector terminals.
Energize washer circuit by closing washer and ignition switches.
3) If no power is present, check for open ground wire or
defective wiper/washer switch. Repair or replace as necessary. If
power is present, reconnect plug to motor and check for tight
connection. If motor does not run, replace pump motor.
REMOVAL & INSTALLATION
REAR WIPER SWITCH
Removal & Installation
Remove instrument panel bezel and switch housing panel.
Disconnect switch connector, slightly depress switch mounting tabs and
remove switch. To install, reverse removal procedure.
REAR WIPER MOTOR
Removal & Installation
1) Remove wiper arm from pivot pin by depressing tab and
pulling arm straight out. Disconnect washer hose. Remove pivot pin
retaining nut and interior trim panel. Remove rear wiper motor
attaching screws and remove wiper motor.
2) To install, reverse removal procedure. Wiper blade should
be parallel to window in parked position (3/8-3/4" from bottom of
window) and come no closer than 3/16" to window seal when operated on
a wet window.
WINDSHIELD WIPER MOTOR
Removal & Installation
Remove wiper arm assemblies by lifting blades off windshield
and pulling out tab that locks blade in up position. Remove cowl trim
panel. Disconnect washer hose. Remove cowl mounting bracket attaching
nuts and pivot pin screws. Disconnect wiring harness and remove wiper
motor. To install, reverse removal procedure.
WIR IN G D IA G RAM S
1988 J e ep C hero ke e
1988 Wiring Diagrams
Jeep
Cherokee & Wagoneer
IDENTIFICATION
COMPONENT LOCATION MENU
COMPONENT LOCATIONS TABLE \
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Component Figure No. (Location)
A/C & Htr Systems ............................... 5 (A-D 16-19)
Alternator ............................................ 1 (C 3)
Audio Alarm Module ................................... 7 (D 27)
Back-Up Lt Sw (M/T) .................................. 4 (D 12)
Battery ............................................... 1 (A 2)
Beam Sel Sw .......................................... 6 (E 23)
Brake Warning Sw ..................................... 6 (C 20)
Clock ................................................ 7 (E 27)
Clutch Switch ........................................ 4 (E 15)
Courtesy Lights ................................... 7 (C 24-26)
Cruise Ctrl Sys ................................... 4 (E 12-15)
Diag Conn D1 (2.5L) ................................... 3 (B 9)
Diag Conn D1 (4.0L) ................................... 2 (B 4)
Diag Conn D2 (2.5L) .................................. 3 (B 11)
Diag Conn D2 (4.0L) ................................... 2 (B 7)
DIR Hazard Sw ................................... 6 (D-E 20-21)
Door Switches ........................................ 7 (C 27)
Elect Ctrl Unit (2.5L) ............................. 3 (A 9-10)
Elect Ctrl Unit (4.0L) .............................. 2 (A 4-7)
Engine Compartment Lt ................................. 1 (C 1)
Fog Light Relay ....................................... 1 (D 2)
Fog Light Sw ...................................... 6 (E 21-22)
Fuel Pump Rly (2.5L) .................................. 3 (C 9)
Fuel Pump Rly (4.0L) ................................ 2 (E 5-6)
Fuel Tank Unit ....................................... 6 (B 20)
Fus Links ........................................... 1 (B 2-3)
Fuse Block ...................................... 4 (B-D 12-15)
4WD Switch ..................................... 6 (C 20, D 21)
Gear Sel Sw .......................................... 5 (C 16)
Glove Box Light ...................................... 7 (C 25)
Headlight Delay Module ............................... 6 (E 23)
Headlight Switch .................................. 6 (D 22-23)
Horn Relay ............................................ 1 (C 2)
Ignition Ctrl Mod (2.5L) ............................ 3 (B-C 8)
Ignition Ctrl Module (4.0L) ........................... 2 (E 4)
Ignition Key Warn Sw ................................. 7 (D 26)
Ignition Switch ................................... 4 (A 12-15)
Illum Lights .................................... 7 (C-D 24-25)
Instrument Cluster .............................. 6 (A-C 22-23)
Keyless Entry Module .............................. 7 (B 24-25)
Latch Rly (B+) (4.0L) ............................... 2 (B-C 4)
Power Antenna Rly .................................. 7 (D-E 27)
Power/Comfort Sw ..................................... 5 (D 19)
Power Door Lock Sys ............................. 7 (A-C 24-27)
Power Mirror Sw ................................. 7 (D-E 24-25)
Power Seat Sw ................................... 8 (A-B 28-29)
Power Window Sys ................................ 7 (A-C 24-27)
Radiator Fan Rly (4.0L) ............................. 1 (C 1-2)
Radiator Fan Diode Assy ............................... 1 (C 3)
Radiator Temp Switch .................................. 1 (C 3)
Rear Defogger Unit ................................ 8 (D 28-29)
Rear Wiper/Washer Unit .......................... 8 (B-C 29-30)
Resistor Pack ........................................ 6 (E 21)
Rt Fnt Door Lock/Window Switch .................... 7 (B 26-27)
Starter Solenoid .................................... 1 (A 2-3)
Starter Solenoid Relay ................................ 1 (A 2)
Stop Light Switch .................................... 4 (E 15)
Trailer Towing Harness (Cherokee) ................. 8 (E 28-31)
Trailer Towing Harness (Wagoneer) ................. 8 (A 28-31)
Trans Ctrl Unit ................................. 5 (D-E 16-19)
Upshift Sw (2.5L) .................................... 6 (C 21)
Vanity Lights ........................................ 7 (C 24)
Washer Fluid Level Sw ................................ 3 (D 11)
Wiper/Washer System .............................. 3 (D-E 8-11)
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WIRING DIAGRAMS
