Question about 1998 Dodge Caravan

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Okay heres one for you i have a humming coming form my ecu on my 98 grand carvan awd and it will not start we have tried everything else bcm fuse box battery you name but i just noticed it today whats the humming mean

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  • yroftheogre Aug 02, 2009

    that really didnt help

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2 Answers

VS COMMODORE My battery was accidentally connected wrong and now the car wont start ...


probably fried the ECM
substitute it with a known good one and go from there

Jul 03, 2016 | Cars & Trucks

1 Answer

Did jeep replace the bcm in late year 1995 cherokee models with an ecm pcm ecu combined computer


replace, (redesign it,) sure, they do every year and for sure programming , i dont understand this question, is this a history question?
is there a symptom you are working, why not post that first.???
and full drive line spec. we cant guess. it. 1995 tells zero.

yes, the PCM did do BCM like duties,even in 1996, but there was no BCM (by name) on many years.
your question varies by model..etc.
but the FSM covers this.
as does alldata.com
it varies by engine, trans, security options and many other options)
by country (export model, Canada model?) yes the www is huge.
by 4wd options,awd?
by what transmission. (mines a 6speed M/T)

im not sure why you ask this, curious, or swapping parts.'
why? "context really does help dont you know?"
you can do your own research here. at alldata.com
see them all, see when they all changed.

in general (experience) all cars move the TCM in to the ECU
at about 1997 (not all) and renamed it to PCM.
see>?
but not all , and not all transmissions.
so why worry this.
in all cases you must deal with the failure regardless of what box it resides. (fact)

BCM, body controller.

here is a free FSM.
you can rattle through these, ?

http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service

in 2007 , the BCM changed radically in most jeeps.

the 1996 tHE PCM does BCM duties, like sends all data from the PCM to the dash cluster brain, via the 2 wire CCD comm network.
see?
the 5 year FSM for 96 to 2001 shows no BCM
so 2002 must be first year.

if you have a symptom, or need FSM facts the above has some.
but to me it dont matter
both boxes are computers.
if the inputs are wrong, so will be the output.
for now and forever.

Sep 01, 2014 | 1995 Jeep Cherokee

3 Answers

I can't find the fuse box


FUSE BOX UNDER THE HOOD ON DRIVER SIDE BETWEEN BRAKE MASTER CYLINDER AND STRUT TOWER, FUSE BOX COVER HAS A LARGE KNOB SCREW HOLDS IT IN PLACE AND THE FUSE BOX COVER HAS A BATTERY SYMBOL ON TOP CANT MISS IT.

Aug 09, 2011 | 1999 Pontiac Grand Am GT

1 Answer

Trying to find blower motor resister on a 98 grand am pontiac i need to replace it but dont know where to start can some one be detailed


REMOVE LOWER RIGHT DASH INSULATOR PANEL FROM BELOW THE GLOVE BOX.YOU HAVE TO SLIDE BCM MODULE ASIDE THE BLOWER MOTOR RESISTOR ON THE BLOWER MOTOR HOUSING WHERE ELECTRICAL CONNECT TO BLOWER MOTOR. TO KEEP FROM SETTING OFF THE THEFT SECURITY SYSTEM, WHEN YOU MOVE THE BCM MODULE. ASIDE FIRST TURN OFF RADIO,THEN DISCONNECT NEGATIVE BATTERY CABLE.THEN REPLACE BLOWER MOTOR RESISTOR.

Jul 31, 2011 | 1998 Pontiac Grand Am

1 Answer

1999 Grand Prix doors unlock & Interior lights turn on by itself


https://s1.postimg.org/y2530m1an/door_locks.jpg

Click on the link. I tried to get everything on one page, which makes it harder to read. It's been my experience that posting multiple images, only the first image posts, not the others. I didn't see a relay in diagram.
The bcm controls door locks with input from the door lock/unlock switch, I doubt I can trouble shoot that from here. You could check for bcm trouble codes, see if anything comes up? Some of the national brand auto stores will check po codes for free, I don't know about bcm codes?
Could be other issues.

Jun 30, 2017 | 2001 Pontiac Grand Prix

1 Answer

I have 98 pontiac grand prix gt has code p0300. we replaced the fuel filter and plugs and wires. Check engine light went off. Started bogging again. Parked the car and now will not start at all. ohm says...


Is the electric fuel pump in the gas tank working ? turn the key to start positon and listen for a small humming noise you may have to have someone get under car to listen if it is humming then it`s working if not first check for a reset button possible in trunk be sure manual to find it if it has one and check fuse in fuse box if all is good there then it might be the fuel pressure regulator

Aug 28, 2009 | 2000 Pontiac Grand Am GT

2 Answers

Security System


Several GM products, including the Chevrolet Impala and Malibu, the Oldsmobile Alero, the Pontiac Grand Prix, and Saturn Ion, have issues with the Security light coming on. This is many times an indication of a failing Body Control Module (BCM). Initially, the Security light will come on then go off, progressing to a constant on light, before the car will refuse to start. Other symptoms may include erratic action of electronics, a clicking sound coming from the glove box, and the air conditioning failing to blow cold air. I recommend a shop that specializes in the electronic systems of vehicles to diagnosis and make the necessary repairs. They should keep the car until they replicate the symptoms described. A new BCM from GM should cost about $230; plan on another $200 for them to diagnose the problem, replace the unit, and program the new unit. The dealers quote between $700 and $1,100 for the same repair. My experience and the experiences I have read on the internet, indicate the new BCM should last only about a year.

Jun 24, 2009 | 2003 Chevrolet Impala

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