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A/c works until the outside temp gets high then fuse in position 6 in fuse block under dash blows

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Posted on May 02, 2010

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1 Answer

Buick enclave front wipers work only on high speed.


What year ? The relay's are located in the under hood fuse box .
With the ignition in the ON position, accessory voltage is supplied through the 25A WPR fuse to the WIPER relay, the WIPER HI relay and the WSH relay that are all located in the underhood fuse block. Refer to Wiper/Washer Schematics. Which wipers are you talking about ? Front or rear . Rear wiper fuse is in the I/P instrument panel fuse box .
Fuse Block - I/P
Under the lower right side of the instrument panel

Nov 19, 2016 | Buick Enclave Cars & Trucks

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1995 Geo Prizm. A/C works and is properly charged but fan won't turn on. also speedometer doesn't work and longer.. any correlation?


blower fan in dash.
fan on RAD
fan in front of ac condenser in front of car.
does the fan in dash blow , on high?????????
does it? if not say so.

the car is Corolla,
and same car.
and works same.
when the Blower dies, in the dash , the A/C will be cut off fast.(but not if blower is dead)
this is normal for blower dead. (power to it, dead )
this is to prevent icing up of the evap core (might crack it)
SPEEDO SIDE TRACKED:
are both speedo and odom are dead?
why not say so/?


26232154-4g1iytzfkimywqjfw30jhjyb-3-0.jpg rule 2, if the dash blower blows on high , its not the resistor block
proof.
below.

on high the resistor block is bypassed,
if blower works and that center fuse below blows, the AC goes dead because 12v dont make it to the the clutch relay.
if top fuse below blows, a./c and blower die. even on high.
26232154-4g1iytzfkimywqjfw30jhjyb-3-1.jpg
you can see all this stuff on mitchell's, if you want. as most do.


btw , the a/c compressor may work , if the the blower has power, but the blower is burned out.
the A/C amp logic module sees the 12vdc leaving the switch and assumes the blower works.
this rule on blower on, is to keep the core from icing over, and that can bend things.
that resistor block is air cooled, and is on the fan chamber to get cooled that way, if not it burns up.
but why not tell us if the fan works on high.
that way we save 90% of all BS guessing.
why not?

first is fuses.
then if fan blows on high only, then the fan is ok and the resistor block is bad.
if blower dead on high, the blower is bad,
the fuse blown or the wires to it are bad or the switch,
what a tech does is use his voltmeter, a $10 tool.
if you have 12vdc to the motor then the fan is history, dead.
if not, 12vdc there, fan on, then you work them meter backwards until you find the open circuit.
really its that simple.
if confused ask quesitions.
if you cant test the fan on high, tell why?

Jul 05, 2016 | 1995 Geo Prizm

2 Answers

Lots of power, dash lights up but no ignition power to starter, relay changed, neutral start switch changed, fuses good.


Well, looking at the schematic, there is the IGN A (Fuse 6) in the under-hood fuse block feeding power to both the ignition switch and to the NO contact of the starter relay. Turning the ignition switch to the START position sends this voltage thru the CRANK (Fuse 8) in the instrument panel fuse block and thru the PARK/NEUTRAL position switch, thru the starter relay coil to ground. This should activate the Starter relay and pass voltage to the starter solenoid to ground, activating it. One the starter solenoid activates, batter power is sent to the starter motor, activating it. If, as you say, the fuses are good, the starter relay was replaced and is good, and the Park/Neutral position switch was replaced and is good, then then only items left are the ignition switch itself, the starter solenoid/motor, or the wiring of the circuit.

Mar 12, 2015 | 2000 GMC Yukon XL

1 Answer

I was driving about 15 minutes got on a graded dirt rroad be drove 5 blocks when I turned around buzzer came on and instrument panel brake light lit uup and smoke coming from around ashtray or from dash I...


First thing I would check would be all the fuses. If everything checks out then I would inspect the wiring to the cigarette lighter and socket because that circuit has a relatively high amperage fuse. More likely to cause the smoke condition before blowing out. Next I would check all circuits that use circuit breakers instead of disposable fuses because they would reset themselves after they cool back down and work again at least until the short happens again. Look for wiring that may have fallen against or have been rubbing against metal supports or other metal parts under the dash including moving parts like the brake pedal linkage or gas pedal linkage / cables under the dash. I had a AC compressor fuse that kept blowing on a new car at random back in the late 80s. Turns out the wiring harness had fallen down on the gas pedal linkage and would touch the metal linkage and short out only when the compressor was on, the gas pedal was pressed down to a specific position and the car ran over a dip or large bump while driving. Took the dealership several tries to finally find the problem.

Jan 04, 2015 | Cars & Trucks

1 Answer

1997 Cherokee fuses under hood


No diagrams? I'm working on a '95 cherokee, the cover on the box has a complete diagram on the underside. On the '95, there are 10 maxi-fuses, and 6 mini-fuses. What is the number designation of the fuse? Likely the numbers may not agree with mine, but I could try to help. By the way, if you have your owner's manual, it would show all fuse and relay descriptions and locations, both the under hood box and the under dash fuse block.

Mar 25, 2013 | 1997 Jeep Cherokee

1 Answer

I have a 92 nissan nx.no dash lights at all.located 1 fuse block under dash and 2 under hood.none labeled inst or dash.cant find a blown fuse.help?


first check all fuses with a tester,if they all are good,next check the switch & connector for corrosion & possible broken wire,if those are good the bulbs might have burnt out,if you only had a few were working the rest might have reached the limit & now your totally dark,usually when the switch goes it goes all together no nothing so I think the other things I have mentioned will bring back your dash lights as long as there was no electrical work done,if there was theres a blown fuse that will continue to blow until the circuit is corrected

Dec 29, 2012 | 1992 Nissan NX

1 Answer

2000 nissan altima blows cold until outside temp reaches 90 degrees then blows hot


2000 Nissan Altima Heater Air Condition Section HA 76 pages Here is factory service repair manual for your vehicle . Do you know how to do testing on these system ? Automotive electrical system testing ? How to read a wiring diagram ? When hot outside is the inlet pipe to evaporator freezing up ? Do you know where this is , under the hood in the engine compartment at the fire wall . What are gauge readings , Is the compressor engaging ? Were any switches replaced ? Ambient temp. , thermal transmitter switch . pressure etc...

Apr 25, 2017 | 2000 Nissan Altima

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Cigarette lighter, outside tempertature and sunroof not working


when more than one gadget dies, a common fault is usually there. find the fuse panel, look in your owners manual. there are usually two, one with a few big fuses under the hood, and another with many small fuses under the dash. after you have replaced the burnt fuse, turn on the 3 gadgets one by one until the fuse blows again. now you know what is drawing too much current and should be replaced or permanently disabled.

Jan 17, 2011 | 2002 Nissan Altima

1 Answer

Has a new battery and altenator, still won't keep a charge. It wil run for a while then quits.


Mitsubishi uses a square block fuse for its alternator . Usually it is under the hood in the fuse box , sometimes it is part of the positive battery clamp. If this fuse blows even though the battery is good and the alternator is working perfectly, the battery will discharge and the charge light on the dash will not tell you. You will drive until the battery goes dead and the car stops. Take a flash light and check all the fuses under the hood till you find the block fuse for the alternator. If it is blown , replace it and your problem should be solved. It is real easy to blow the fuse if you short the power at the back of the alternator to ground ( an alternator installation, where the battery cable is not unhooked).

Sep 06, 2010 | 1996 Mitsubishi Mirage

1 Answer

2001 Suzuki XL-7. Heater blows hot one side, cold the other.


No ductwork [to the lower vents] under the dash. They are part of the heater core / blower housing is integrated (all one piece).

After reviewing shop manual, we suspect that one of the three damper flaps is not positioning correctly; or debris has blocked one side (which makes more sense given the symptoms).

We're waiting for the temperatures to get back in the plus numbers to check out the physical arrangement.

Jan 19, 2009 | 2001 Suzuki Xl 7

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