Question about 2005 Chevrolet Avalanche

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A/c not working

I seen a post to remove the ECU fuse but i can not locate it.

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The A/C relay is under the hood at the power supply relay and fuse box.
Hope this helps and rate me highly please.
Thanks;
Rich
RPM Northwest

Posted on Feb 07, 2009

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1991 sidekick,xjl alt blew up battery replaced both now wont start,checked fuses good, turns over no start.any ideas


cranks but wont start.
only a shorted starter can do that.
or alternator gone nuts but that blows the 60amp fuse seen here
you can do lots.
first and always first. check all fuse, (TEST THEM)
I had a car back in 1972 that (mech, really alternator reg)
that went nuts and blew up every lamp in car, at midnight far from home, in a bad neighborhood too.. scary, but engine ran.
your car is EFI,
and is only safe up to 15VDC< over that you blow up ECU
or if lucky (only the 3 ECU fuses blow)
is the CEL lamp working in the cluster,? if no the fuses blew.
the 3 fuses are
IG coil
FI
and dome.
there are 50 reasons for no start but based off one fact
i say fuses.
testing fuses. matters
if they look bad the are,
if they look good, they can be in fact bad,(called hairline cracks)
we test them did you? really test them,i do it live using a voltmeter
the meter NEVER EVER lies.
see? using a meter avoids going down the wrong path to H3LL.
(dog chasing tail)
now what if you measured the 3 power pins on the ECU behind
left speaker (sold my 91,4wd/2door, restored by me)
the ECU has power, (i have the schematic)
if it has power, the CEL must glow, or the ECU was burned up.
1991 are all 8valve cars, then
simple schm.
http://www.fixkick.com/ECU/8v-tbi-schematic91to95.jpg
full set.
http://www.fixkick.com/look/91-complete.pdf

starter. /charge.
http://www.fixkick.com/Charging/charge89.jpg

Mar 15, 2017 | 1991 Suzuki Sidekick

1 Answer

1992 isuzu rodeo has no spark I have changed the coil , the rotor , the spark control modual , the ecm , the pick up coil , still no spark could it be the ecm relay ??


double posted, why?
I guess you are h3ll bent on gue$$ and not testing.
so keep going replace everything, we love to watch.
why not use the diagnostic jumper as posted in your other posting.
why>?
no spark out of coil right.
recap of last answers.
fuses, good, all 7 for ecu +spark good????????
we test them not guess, but ones that look blown are.
CEL Glow key on,?
flash codes ok 5 seconds cranked.
CKP good , the ECU will tell you its bad with flash codes.
why skip this key test??????????????????????????

The ECU must have power ! this is first. not changing out tons of stuff, 12vdc power,, and there are 7 fuses.
i bet you never tested them
or measure all ecu power pins to see if its has power first.
and is FIRST, no brain,(ecu)no spark and then no fueling.
if the CKP is dead, there can be nos spark.
ever.
I can only presume you connected a good new spark plug
to the actual coil tower point, then ground the spark shell.
and cranked and spark really is dead, 100 years, same way.
if dead, check 7 fuses.... seen in the book on car.
log in to mitchells diy. (google that)
and read how it works, its all there, read it.
a schematic to.

Nov 26, 2016 | Isuzu Cars & Trucks

1 Answer

Cadillac ecu


Instructions
    • 1 Turn the ignition switch to "Off."
    • 2 Pull down on the top of the fuse panel lid beneath the steering column. Remove the fuse panel lid.
    • 3 Grasp the fuse that is labeled "ECM" or "ECU." The inside of the fuse panel lid shows a chart indicating where each fuse is located.
    • 4 Pull the fuse straight out of the fuse panel to remove it.
    • 5 Turn the ignition switch to "ON" without starting the engine. Leave the Cadillac in this state for five minutes.
    • 6 Turn the ignition switch off.
    • 7 Replace the fuse into its slot in the fuse panel. Press in on the fuse until it is fully inserted. Replace the fuse box cover.

Jul 08, 2014 | 2002 Cadillac Deville

1 Answer

Where is the body ecu located


Engine ECU is located in the engine bay, on the driver side(RHD). Body electrical has no ECU (earlier models). Citroen Berlingo uses what is called 'Multifunction Control Modules'. It has 2 of them. One is located in the steering column switch assembly and the other is incorporated inside/underneath the fuse/relay frame in the engine bay. If your Xantia is late model, it may adopt the Berlingo system but I have not seen one that does.

Feb 05, 2014 | Citroen Xantia Cars & Trucks

1 Answer

Where is the fuel pump fuse on a 1990 geo tracker


old post, this car is not 1991 and newer that do have a FI fuse.
this generation 1.
it uses 1 fuse for ECU , spark and pump.
called IG-COIL
as seen here
for others, with this car the below is key to whats there. EFI wise.
http://www.fixkick.com/INJECTORS/89/89-90schem1.jpg

Jan 31, 2014 | 1992 Geo Tracker

1 Answer

Efi fuse blows when car strts wher is the efi located


NO YEAR stated (old post)
there is no EFI fuse. sorry,
the ECU has 3 fuses.
FI, Dome, and IG-coil
all 3 run the ECU.
i do know what you ment.
but knowing the correct name makes reading the FSM better.
my guess 2 is you lost the fuse box cover and cant read the names.
guessing year at 91 -95
http://www.fixkick.com/power-elect/fusepanel-left-knee1w.jpg

the ECU fuse blows page. is here
http://www.fixkick.com/power-elect/blows-fuse.html

top reasons.
ECU bad CAPS
shorting fuel pump (they pull 4amps normal) if 10amps or
more they blow the fuse and or causes the ECU to click relays
like mad.





Dec 22, 2013 | Geo Tracker Cars & Trucks

1 Answer

Where is efi module located


double posted but , its answered on other post.
short answer, behind the left front speaker.
the bad ECU page link in your other post covers ECU pulls.
in great details.

Dec 22, 2013 | 1995 Geo Tracker

1 Answer

89 camry ecu fuse location


Hi Welch, The ECU fuse is located under the bonnet (hood) in the fuse box there. Regards John

Aug 18, 2012 | Cars & Trucks

1 Answer

Trying to locate the ecu . the problum is we got 12 v to the injectors but they are not spraying gas .


check the fuel pressure to injectors to see if pump is working properly. there should be a schraider valve on engine fuel line under hood to test this. the ecu is located on floor directly behind radio. there is a black cover with 2 round plastic snaps that cover ecu. from drivers side, ecu is beside gas pedal. pull on the ecu cover to remove it. are all fuses and fuel pump relay ok !!

Mar 04, 2011 | 2000 Nissan Maxima

2 Answers

Where it the location of the transmission ecu for suzuki aerio 2003


its called the TCM. (on most cars now, its inside the PCM)
not this car, in USA. as above gets wrong.


The Engine Control Module (ECM) is located in the passenger side of the instrument panel behind the glove box.

the TCM is center of dash or console. not where ECM is..located. sorry, !
on 2.3L and 2.0L USA cars.
its here.
right dash is ECM
center is TCM. fact. this page is from the real service man.
seen here,


6466048-0g1cwjmi3ympvvurqrxcoiy3-4-0.jpg

Oct 18, 2010 | 2003 Suzuki Aerio

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