Question about 1999 Pontiac Montana

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What are the wires under the driver's seat of montana 1999

Lots of wire connectors under the driver's seat

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We have no wiring diagrams here-- as the experts
are at home & have to find those things on their own

Just a chat room

Posted on Nov 30, 2012

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Posted on Jan 02, 2017

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SOURCE: Replace seats in 2003 Montana with seats from 2000 Montana

I would disconnect the battery minus - cable first, ensure the airbag connectors are the same ! otherwise I do not think you have a problem !!

Posted on Aug 11, 2009

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SOURCE: wires came out of egr wiring harness connector for

go to the salvage yard and have a look

Posted on Jan 23, 2010

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SOURCE: where is the trailer wiring harness connector in a

It may be tapped in with another bundle of wires. Attached is a picture of the plug and location.84108bd.jpg

Posted on Feb 03, 2010

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SOURCE: I have a 2001 Pontiac

I have neevr heard of that problem. Get access to the wires going to the gas tank and unplug the unit. See if the problem is still there.

Posted on May 29, 2011

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SOURCE: all power windows except drivers

Hello and welcome to FixYa!

You will need to remove the seat to gain access to the wire. You can work freely with the seat off.
Hope this helps and thank you for using FixYa! Have a good one!

Posted on Jul 16, 2011

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2 Answers

Can't get the drivers seat to move, could it be a fuse and where would that fuse be located?

Fuses are located on the drivers door jamb and in the engine compartment. See your manual. If the passenger seat is power and it works, then your problem is not a fuse but a switch.

Mar 21, 2014 | Oldsmobile Aurora Cars & Trucks

1 Answer

What does the flasing pattern 16 mean on a Mazda Tribute airbag system?

There is a very common problem on the Mazda Tribute and the Ford Escape. I found an old thread from this site that discusses it. I found it using Google, but couldn't find it again using the search tool on this site so I wanted to post again. Anyway, the issue is the airbag light in the instrument cluster blinks 4 times then either 6 or 7 times. This repeats several times until the light just stays on solid. The light may go off again, but it comes on again some time later.

I have only read about one solution and it worked for me as well as many others. You're going to love this because it's very simple. There are some wires under the front seat that are causing the problem. I looked under the drivers seat first, but because my seat is a power seat, there were a LOT of wires. I've worked on cars all my life (I'm 51 so that's a LONG time), so it didn't take long to figure out which ones went to the seat motor and which ones didn't.

If you have a power drivers seat, but a manual passenger seat, I suggest you start on the passenger seat. Look under the front of the seat, on the center console side. I found two wires there (actually four wires, but two connectors). I disconnected each connector then plugged it in again, guessing that the contacts may have gotten a little oxidized over time.

Most of you know, but some of you may not, that to release these types of connectors there is always some kind of a latch. You need to push in on the latch as you pull the connector out. Do the same thing to both of them and then plug them back in.

I'm guessing, and it's just a guess, that maybe the 46 is for one seat and the 47 is for the other. Since my code was 47, and I tired the drivers side first and it didn't fix it, I am guessing that 47 is the passenger side because disconnecting and reconnecting those wires has at least for the time being, fixed the problem.

After you disconnect,reconnect the passenger side wires, check the light. If it doesn't come on, you're done. If it does, then move to the drivers side. You notice that the wires on the drives side are in the same vicinity, but not exactly the same place. And there is one extra connector on this side. The connectors were more difficult to get on this side too. Hopefully, you'll fix yours on the passenger side like I did.

Sorry for the long post, but I'm pretty sure that this is going to help someone out. People have spent countless trips going to the dealer trying to get this resolved, some paying hundreds and hundreds of dollars on unnecessary repairs. Don't be "that guy"

PS - while you are at it, wiggle the wires a little too, can't hurt.

Good luck, I hope it works for you too.

Jun 12, 2012 | Mazda Tribute Cars & Trucks

1 Answer

Where are the driver's seat relays on a 2005 deville?

There isn't a separate "relay" for just the drivers seat. All the seats get power from one location so if the others are working you may be dealing with the controller/switch which is likely. If you can get to the plugs/connectors on the seat adjuster switch/module check any orange wires for power. All seats are connected to a 30 amp circuit breaker and am sure but am unable to get you a picture of the connectors right now but have them but know in the 05 devilles the orange wire is the power source. If I'm not mistaken there is a connector with only 2 wires (ornge & black) but don't quote me on this. If I am right, check the orange wire there. If there is power there you have power too but from there to the motor(s) and further tests need to be done to narrow down the problem. It could even have something to do with the memory seat controller. If you need further help you can reply here or email me directly at with your information and I will be happy to help you with some tests to narrow it down. No there wouldn't be a charge for my help. Hope what little information I have given you at least helps some.

May 18, 2012 | 2005 Cadillac Deville

1 Answer

2003 Montana-fuel guage always reads full. Unable to refill tank when low on fuel.

This is caused by a bad sending unit in the fuel tank, I have seen this many times and a new fuel sender fixes these every time.

This is very common in montanas... a
lso for the fuel gauge (I believe its applicable for a 2000 and later), it may be an issue with the C-305 connector.

Its a pass-thru connection for wiring (from inside cabin to outside/underneath). It connects various wires for things in rear of vehicle(including connection to fuel pump/sensor). While its weatherproof on bottom (underneath) it is not inside cabin, spills/ various leaks inside can cause water intrusion and subsequent corrosion of wires.

The connector should be under carpet to the rear of drivers seat (you may be able to see exactly where by looking under vehicle for a bundle of wires that come out from cabin)

Hope helps.

Dec 18, 2010 | 2003 Pontiac Montana

2 Answers

1999 Cadillac Deville Driver side power seat not working

No fuse.These seats are protected with relays and a seat module.The module is under the drivers seat.There are 3 connectors and it would be hard to check all these wires for power to the motors.First look under the seat and make sure none of the connectors came apart under the seat by something that might have been left or rolled under it.The 2 main ones you can check are the connector 2 terminal C and connector 3 terminal A.C is a black wire which is ground and A is a red wire which is the feed power wire.Connector 2 is green and 3 is black.If the ground and power wires are good then you could have a bad drivers seat module.What I would do is go to the salvage yard and find a used module to try.Good luck.

Dec 07, 2009 | 1999 Cadillac DeVille

1 Answer

Replace seats in 2003 Montana with seats from 2000 Montana

I would disconnect the battery minus - cable first, ensure the airbag connectors are the same ! otherwise I do not think you have a problem !!

Aug 11, 2009 | 2003 Pontiac Montana

1 Answer

Air bag Light Stuck On 98 Pontiac Montana

Under the front seats you have wires going to your seat belt anchors.These wires are atached to a sensor witch activate the air bags if the anchors have force pull on them.The wires have plugs under the seat.Disconnect the plugs and spray with electical cleaner and replace.Make sure the ignition is switched off befor you attemt doing.90%of the time this will work.good luck.

Jul 17, 2009 | 1999 Pontiac Montana

1 Answer

1999 Pontiac Montana passenger sliding door stopped working.

Verify the wiring harness which passes under plastic step & carpet at front passenger side. This wiring harness goes from the firewall to the pillar on the right side and some have crimped connectors in them to act as junction between two or more wires (ususlly the 12volt feed), which deteriorate with time, especially with Salt & Water. Then the electric sliding door stops working and even driver the electric seat can loose power.

May 17, 2009 | 1999 Pontiac Montana

1 Answer

Engine Start Then Batt/AIrbag Light On 14.6 Volts At Battery?

Batt/air bag light? 2 problems. air bag light check and clean wiring under passenger seat. Then drivers seat. Battery light I have no idea unless battery volts to low.

Feb 12, 2009 | 2004 Pontiac Montana

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