Question about 1992 Nissan Pickup

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Turn signals, gauges etc won't work, fuses look ok.

I have a 1991 4 x 4 pickup. the turn signals, gauges, heater blower, horn etc won't work. I have checked the fuses and they are ok. what could be the problem. Also where could I get a complete electrical diagram of the truck.

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The electrical junctions that are almost right on the positive terminal of the battery can get corroded and cause all sorts of havoc. If you see a bunch of corrosion on the battery, or it's moist from boiling over, this is the first thing I'd do. Carefully separate the "plugs" and clean them with electrical cleaner which you can get at any parts store. Make sure they're shiny clean. (Sometimes you have to scrub a little with a brass brush.) Add some new dielectric grease, and that should do it. Good luck!

Posted on Jan 05, 2009

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1 Answer

No blower on heater/cooler


If you know how to use a digital voltmeter than these instructions will be of help. If you don't know then take the vehicle to a repair shop.

Assuming that you know how to use a meter, Lets start with the horn. Check fuse, if a ok then remove horn from circuit and give it B+ and ground independently if it sounds Horn a ok, problem in clock spring ,or horn contacts are corroded. At this point if car has air bags bring it to a reputable shop. Cause if your not careful doing the electrical testing you can set off air bags and that will be a $1200 dollar mistake.
The rear heater is simple. Make sure the contacts are intact and clean on the glass. If they are then remove the switch bypass it and see if the rear screen heater turns on.(hook up meter to screen grid to check for B+) If it does the culprit was the switch.
Heater blower same principal. Circuit consist of blower, relay ,switch and resistor. First test blower remove contacts from blower and fabricate a B+ line and ground if the blower works then its a -ok.
If it doesn't replace blower. Again to test switch remove it and bypass it. Resistor Ohm out with a volt meter to see if resistance is higher than it should be. Remember at high speed you should have straight battery power going to that blower. If the fan doesn't go on high speed chances are its the switch cause RESISTOR is bypassed at this speed. YOU MAY NOT HAVE TO OHM OUT RESISTOR. GOOD LUCK FILL ME IN ON WHAT HAPPEN.

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No turn signal, hatch won't release, no horn, fuse ok


Are you sure you don't have a low battery? have it tested first then check for other problems if the battery tests ok.

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MY 1991 JEEP WRANGLER CARS HEATER DOESNT WORK


If the blower works check for coolant in the cooling system. Test operation of thermostat. Check heater control valve for proper operation if equipped. Pressure test cooling system to ensure system holds pressure (this will help you identify a leak, if any. If car does not over heat and cooling system is in good working order, then the heater core is clogged.
If the blower does not work Check fuse, relay, wiring for short to ground, apply direct battery voltage to blower motor. If blower motor turns on and fuse/relay and wiring are ok replace the switch.

Dec 14, 2010 | 1991 Jeep Wrangler

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I believe that i have a blown heater motor fuse on a 1991 buick lesabre. which fuse is it and where is it located?


Check the power at the connector to the blower motor with a test light or gauge. Mine would blow at times and I turned it on unplugged connector and reconnected . It works fine after I cleaned and fixed it.

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Brake lights not working even though the brake peddle is pushed down The switch still goes in and out. Fuse box has some fuses missing. The fuse box does not have a desription on every plug of what it is...


Here are the numbers on your fuseblock and fuses coresponding to the number that is on your fuse block.
1-20 amp (yellow)
Hazard flasher
2-10 amp (red)
back up lights, A/C clutch cycling Switch
3-30 amp (green)
Power windows
4-30 amp (yellow)
A/C or heater blower motor
5-20 amp (yellow)
Panel Lights, Side marker lights, Park, Taillights, Clock & radio display Intensity, License & panel lights.
#6-10 amp (red)
Stoplight, buzzers, Anti-lock brake module
#7-15 amp (lt. Blue)
Tachometer, horn & Relay
#8-8 amp (yellow)
Power Door locks
#9-10 amp (red)
Radio
#10-10 amp (red)
Rear Wheel Anti-lock module, Turn Signals
#11-20 amp (Yellow)
Windshield wiper & washers
#12-15 amp ( LT. Blue)
Cigarette Lighter
#13-5 amp (tan)
Speed Control, warning buzzers, gauges, indicator lights
#14-5 amp (tan)
Time/delay relay & under-hood light, dome light, power mirrors, readio & clock Memory, Interior lights, reading lights
#15-blank
Not used
#16-4 amp (pink)
Radio Lights & overdrive switch light 1989-91, Cluster lights, Cigarette Lighter light & as tray light, Cluster lights, A/C & heater controls.
#17-relay
Hazard Flasher warning
#18-relay
Relay
#19-Circuit breaker
#20-relay
Turn signal Flasher
#21-buzzer
Warning
#22-Relay
Horn

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2 Answers

FUSE BOX DETAILS


left to right...
1. empty
2. e flashers
3.horn, brake lights
4.clock, trunk light, inside light, radio
5. rad. cooling fan relay (AC only)
6. right side running lights
7. left side running lights
8. right high beam and indicator
9. left high beam and indicator
10. right low beam
11. left low beam
12. reverse,turn signal and inst panel
13. main and transfer fuel pumps, auxiliary air reg., ox sensor heater
14. license plate and glove box light
15. wipers
16. rear defogger
17. heater blower (no AC)
18. cig lighter
19. rad cooling fan (no AC)
20. Heater blower (AC)
21. rad cooling fan (AC only)
22. empty
23. Ox sensor, idle stabilizer,seat belt warning relay, (Digifant only, control unit, idle boost control, idle boost valve)
24. inst panel lights, heater control lights
25. reading lamps
26. empty
27. empty
28. empty

Hope this helps...;-)

Apr 17, 2009 | 1992 Volkswagen Fox

2 Answers

Fuse box,, relays ?


Disconnect the battery for a minute or two and reconnect it. Sometimes the BCM (body control module) locks up.

Apr 14, 2009 | 2005 Dodge Caravan

1 Answer

Fuel gage turn signals and heater (fan) won't work.


Reversing polarity at the battery is a very bad thing and can cause a host of unpredictable problems. You are lucky that you didn't fry the alternator diodes (the battery is charging, I hope). Each of the problems you describe will have to be treated separately. 1. try replacing the turn signal fuse and flasher unit. 2. fuel gauge has a delicate resistor... probably the easiest fix is to replace the instrument cluster. 3. Heater blower fan has a resistor pack for different fan speeds, this may be replaceable, otherwise a new blower assembly may be the best way to fix it. Hope this helps

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Wiring diagram


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