Question about 1989 Mercedes-Benz 300-Class

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Front Dome lights and rear window defrost quit working at the same time, or so close to the same time I didnt notice, fuses look ok. Whats up? 1989 300 SEL

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Spin your fuses, they used aluminum fuses and the corrode in the copper contacts.

You can replace the fuses with new copper ended ones.

Posted on Aug 15, 2010

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1 Answer

2003 grand am no dash or rear lights fuses keep blowing mechanics cant figure out, tries tracing through driver door didnt work, go over bump it blows out,


Does your interior dome light work,if it doesnt take the dome lamp assembly out and disconnect the wire harness from there, reinstall the fuse and recheck lights,The possible short is coming from 2 likely areas the dome light or the dimmer light,what you do to the dome light to trouble shoot the short you will also perform on the dimmmer switch

Nov 12, 2012 | 2003 Pontiac Grand Am

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My brother in-law tried to jump start our ascender and hooked the cables up to the fuse block instead of the battery terminals. We replaced the battery, but now several devices will not work. These...


didnt notice any or didnt find any, check ALL the fuses, if all are OK, then have a shop look at it, explain what happened, then senf him the bill. ; )

Aug 30, 2011 | 2006 Isuzu Ascender

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The horn, cigarette lighter, power locks, dome light and radio light stop working at the same time. the fuses seem ok, what causes this problem?


use a fuse tester(can get at local automotive store). the fuse may seem okay but look closely at the fuse maybe cracked off inside of the fuse. i had the same problem a couple of months ago

May 20, 2011 | 1989 Chevrolet Celebrity

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The rear cargo light won't turn off. This happened after I replaced a rear turn signal tail light bulb and a fuse for the horn. (These went out at the same time.) When the blinker light and horn were...


Hello! The instigator of this problem appears to be the the rear cargo lamp; Official name is rear dome light. You'll need a multimeter set on the X10 ohm scale to shoot this trouble. Leave the rear dome light bulb out. There are two switches involved; #1 the rear dome light on/off. #2 the right hand front door switch.

Pull the horn fuse out, remove the rear dome light cover, drop the rear dome light down to access the wiring and close all doors on the vehicle. Connect one lead of the ohm meter to the white wire and the other to body ground. If you read any resistance one or both of the two switches (dome light switch or right hand front door switch) is remaining closed when all doors are closed. Next disconnect the black lead from the dome light switch and see if reading changes to zero. If it does this is indicating that the dome light switch is defective. If it does not, disconnect the right hand door switch and take another reading at the same location. If you still measure any resistance, the black wire of the rear dome light is shorted to ground, if not then the right hand door switch is the culprit.

The reason the right hand door switch and not the left hand door switch is involved is the fact that opening the left front door would turn on the front dome light as well as the rear light. If both dome lights are staying on with all doors closed I would then involve both door switches in this test procedure. If your vehicle is a four door model then disconnect one door switch at a time while performing this test procedure.

The horn fuse also supplies power to the rear dome light, and I suspect the two events are related.


Guru..............saailer

Dec 13, 2009 | 1991 Chevrolet S-10 Blazer

2 Answers

2002 Cavalier - The rear defrost just quit. The light is still on but nothing. Where would I check the fuses or would it be wiring if the light is still on?


I'd guess that if you look closely, and it would have to very closely, you'll see that there might be a break in the "wires" on the window.

Dec 10, 2009 | 2002 Chevrolet Cavalier Coupe

1 Answer

2004 elantra dome light quit working. Bulb has


Hello Janet. Begin by removing the bulb again and cleaning the contact plus the end of the bulb with the eraser at the end of a common pencil. That alone may solve your problem. There is also a fuse. look in your manual to determine which fuse it is and replace it even if it looks ok. Finally, if these things do not solve your problem it may be the switch. If that is the case call an autoelectric shop and they will change it for you for a few dollars.

Nov 20, 2009 | 2004 Hyundai Elantra

1 Answer

1989 Mercury Tracer Sta. Wgn.


your owner manaul has it. your fuse cover should have chart too.

here is 96 tracer. You also have main fuses under hood.

INTERIOR FUSE JUNCTION PANEL REFERENCE CHART Fuse Fuse Rating Color Protected Components (REAR WIPER) 10A Red Rear wiper and washer motors, heater and A/C relays, daytime running lamps control (Canada), climate control assembly panel illumination HAZARD 15A Blue Front and rear turn signal lamps, turn signal indicator lamp, indicator flasher ROOM 10A (1.9L)
15A (1.8L) Red
Blue Dome and map lamps, safety belt warning chime, ignition key illumination, luggage compartment lamp, vanity mirror lamp, radio chassis (memory), power door lock relay, shift interlock system, powertrain control module (PCM), radio amplifier (memory) ENGINE 15A Blue Fan control (FC) relays, PCM relay RADIO 15A Blue Radio chassis, radio amplifier, remote control mirror, instrument panel illumination (DOOR LOCK) 30A Light Green Power door lock actuators BELT 30A Light Green Passive restraint control module, passive restraint motors (POWER WINDOW) 30A Light Green Window regulator electric drives METER 15A Blue Instrument cluster, backup lamps, rear lamps, speed control system, shift interlock system, safety belt warning chime, passive restraint control module, hazard flasher, PCM (1.8L Canada) WIPER 20A Yellow Windshield wiper motor and windshield washer pump STOP 20A Yellow Stoplamp, horn (1.9L only), rear hi-mount lamp TAIL 15A Blue Parking lamps, cornering lamps, rear lamps, license lamps, compartment lamp, instrument panel illumination (SUN ROOF) 15A Blue Sliding roof panel motor ABS 10A Red Anti-lock brake system (ABS) (1.8L only) (DEFOG) 20A Yellow Rear window defroster HEATER 30A
circuit breaker — A/C blower motor HO2S
(ON INTERIOR FUSE JUNCTION PANEL SIDE) 10A (1.9L)
20A (1.8L) Red
Yellow Heated oxygen sensor (HO2S) CIGAR
(ON INTERIOR FUSE JUNCTION PANEL SIDE) 20A Yellow Cigar lighter knob and element CIGAR 20A Yellow Cigar lighter OBD II 10A Red Data link connector #2 BLOWER 30A Light Green Blower motor relay HORN 20A Yellow Horn (1.8L only)

Aug 10, 2008 | 1989 Mercury Tracer

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