Mitsubishi Montero (1998+). Manual — part 88
1) Start and run engine at 2000 RPM. Ensure battery is fully
charged. Turn defogger switch to ON position. Using a voltmeter, check
voltage at center section of each defogger grid filament.
2) If voltage is about 6 volts, grid filament is okay. If
voltage is about 12 volts, an open is present in negative circuit.
Move probe slowly toward negative terminal to determine location of
open circuit.
3) If voltage is zero volts, an open is present in positive
circuit. Move probe slowly toward positive terminal to determine
location of open circuit. Repair grid as necessary. See
GRID FILAMENT REPAIR under ON-VEHICLE SERVICE.
ON-VEHICLE SERVICE
GRID FILAMENT REPAIR
Clean broken wire tips thoroughly. Place masking tape along
both sides of broken wire. See Fig. 8. Apply Repair Paste (DuPont
4817) to broken section of grid. Remove masking tape after paste has
dried. Wait 24 hours before using defogger.
Fig. 8: Repairing Rear Defogger Grid Element
REMOVAL & INSTALLATION
DEFOGGER SWITCH
Removal & Installation (Diamante)
Defogger switch is integral with A/C system ECU. To remove
A/C ECU, remove center console. Remove audio panel. Remove radio.
Remove A/C ECU. To install, reverse removal procedure.
Removal & Installation (Eclipse)
Remove upper stoppers from glove compartment. Drop down glove
compartment. From glove compartment opening, reach behind center air
outlet assembly and disconnect harness connectors to switches. Release
metal clips from center air outlet assembly. Remove center air outlet.
Remove defogger switch from center air outlet. To install, reverse
removal procedure.
Removal & Installation (Galant)
At heater unit, remove center air outlet cool air by-pass
lever cable from damper lever. To remove center air outlet, push
springs at bottom of center air outlet upward. Outlet is located above
radio. Remove switch from center air outlet. To install, reverse
removal procedure. Turn cool air by-pass lever on outlet fully upward.
Pull air by-pass lever fully downward and install cool air by-pass
lever cable to damper lever.
Removal & Installation (Mirage)
Remove driver-side lower dash panel. Remove center console
assembly and foot distribution duct. Disconnect rear window defogger
switch harness connector. Remove switch. To install, reverse removal
procedure.
Removal & Installation (Montero)
Remove defogger switch by prying switch off instrument
cluster bezel. Disconnect wiring harness from defogger switch. Remove
switch. To install, reverse removal procedure.
Removal & Installation (Montero Sport)
Remove instrument cluster bezel. Bezel is held in by metal
clips. Disconnect wiring harness from defogger switch. Remove switch
from behind bezel. To install, reverse removal procedure.
Removal & Installation (3000GT)
Remove knee protector. Remove steering column upper and lower
covers. Remove instrument cluster bezel. Disconnect wiring harness
from defogger switch. Remove defogger switch. To install, reverse
removal procedure.
WIRING DIAGRAMS
Fig. 9: Rear Window & Mirror Defogger System Wiring Diagram
(Diamante)
Fig. 10: Rear Window Defogger System Wiring Diagram (Eclipse)
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