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Old 11-15-2009, 02:52 PM   #1
ddarnell
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Default 99 SL1 is a flood victim

My daughter has a 99 SL1 that she left in her parking lot in Virginia Beach this past week while Ida hammered the coast. She said that the water rose above the floorboards..............don't know how high, but my guess is a few inches.
The car will not turn over now. I'm a car nut, but I don't know what electronics and other critical systems are located at a level on the vehicle which may have been immersed.
I will try to determine how far the water rose and I'v instructed her to find a voltage meter to check the battery for voltage.
Unfortunately I'm on the other coast...........so I'm hoping that with help from this board I might be able to walk her or her mother through a simple diagnostic proccess. Her mother ( my wife) is currently visiting and and she's about half car guy.
Again, I understand most automoblie systems fairly well but I don't know the vehicle specifics of her Saturn.
Your help will be greatly appreciated
Thanks,
David

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Old 11-15-2009, 05:10 PM   #2
99Saturbo
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Default Re: 99 SL1 is a flood victim

If, in fact, your Saturn is an S-Series (SC, SC1, SC2, SL, SL2, SL2, SW1 or SW2), the PCM is on the drivers side. Look up under the dash to door side. You'll see a 3 wire harnesses attached. ONE phillips-head-type bolt holds in it. If its a 2000-2002, its just behind the battery.

The BCM (body control module) is near the glove box. If the car isn't starting though, it's not the BCM.

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Old 11-15-2009, 05:46 PM   #3
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Default Re: 99 SL1 is a flood victim

Quote:
Originally Posted by 99Saturbo View Post
If, in fact, your Saturn is an S-Series (SC, SC1, SC2, SL, SL2, SL2, SW1 or SW2), the PCM is on the drivers side. Look up under the dash to door side. You'll see a 3 wire harnesses attached. ONE phillips-head-type bolt holds in it.
Number of wireharness connections depends on transmission type. And 1991-1995's had the PCM held in place with a phillips head fastener. 1996-1999 had a 10mm nut to be removed at the top of the PCM.


Quote:
Originally Posted by 99Saturbo View Post
The BCM (body control module) is near the glove box. If the car isn't starting though, it's not the BCM.
The car is a 1999. No BCM.

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Old 11-15-2009, 07:32 PM   #4
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Default Re: 99 SL1 is a flood victim

Thanks for the replies. It sounds as though the water would have to be quite high to drown the PCM, if it's up under the dash. Any ideas what is down around floorboard level that could have been damaged enogh to prevent the starting system to even turn over?
David

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Old 11-15-2009, 07:34 PM   #5
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Default Re: 99 SL1 is a flood victim

Big correction......the car is a 1991 not a 99. Someday I'll learn to type better
David

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Old 11-15-2009, 07:49 PM   #6
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Default Re: 99 SL1 is a flood victim

Quote:
Originally Posted by ddarnell View Post
Big correction......the car is a 1991 not a 99. Someday I'll learn to type better
David
Still no BCM.


Most of the car inside wiring harness runs along the floor. Also the fuse box is floor level.

Could be many different things depending actually how high the water got.

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Old 11-15-2009, 08:38 PM   #7
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Default Re: 99 SL1 is a flood victim

Thanks for your help Mike. It sounds as though the fuse box is a good place to start. Are the relays in that location as well?
David

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Old 11-15-2009, 09:16 PM   #8
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Default Re: 99 SL1 is a flood victim

Mike,
Did the S-series not use a BCM at all? If so, then what does "GM" use to control all the functionality of the internal electronics?

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Old 11-15-2009, 09:25 PM   #9
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Quote:
Originally Posted by 99Saturbo View Post
Mike,
Did the S-series not use a BCM at all? If so, then what does "GM" use to control all the functionality of the internal electronics?
BCMs IIRC were put in the 3rd gen s-series, and I believe most vehicles made in this millenium.

Also, all s-series uses a PCM if that matters..

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Old 11-15-2009, 10:38 PM   #10
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Default Re: 99 SL1 is a flood victim

Quote:
Originally Posted by ddarnell View Post
Thanks for your help Mike. It sounds as though the fuse box is a good place to start. Are the relays in that location as well?
David
Yes, several of them. Even one relay pack under the passenger seat for the power locks if the car has them.

Quote:
Originally Posted by 99Saturbo View Post
Mike,
Did the S-series not use a BCM at all?
The S-Series got BCM's in 2000.

Quote:
Originally Posted by 99Saturbo View Post
If so, then what does "GM" use to control all the functionality of the internal electronics?
Nothing. It all controls itself. Like every other auto manufacture in the world before cars started using body control modules.

...
Mike

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Old 11-16-2009, 12:16 AM   #11
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Default Re: 99 SL1 is a flood victim

Looks like we'll start by determining what got wet. I can only imagine that a submerged fuse/relay block could cause quite a bit of havoc. Are there any online resourses such as schematics and exploded views?
Thanks again,
David

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Old 11-16-2009, 12:21 AM   #12
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Default Re: 99 SL1 is a flood victim

Mike......I just read your signature line. That's a quick car you have there. I have a number of cars and I don't think any of them will run in the low 11s.
Good work............you must have it dialed in.
David

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Old 11-16-2009, 12:22 AM   #13
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Default Re: 99 SL1 is a flood victim

I meant high 11s..............still fast!

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Old 11-16-2009, 09:39 AM   #14
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Default Re: 99 SL1 is a flood victim

Your daughter is not alone - a couple of other recent water-flooded s-series threads:

http://www.saturnfans.com/forums/sho...=flooded+water

http://www.saturnfans.com/forums/sho...=flooded+water

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Old 11-16-2009, 10:39 AM   #15
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Default Re: 99 SL1 is a flood victim

If the car's not turning over, don't look at the electronics. The starter circuit is a simple electromechanical circuit - battery, ignition switch, neutral or clutch switch, starter, ground. Check all that first.

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Old 11-16-2009, 11:51 AM   #16
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Default Re: 99 SL1 is a flood victim

Thanks for the help. We'll start with the starter circuit.
David

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Old 11-16-2009, 01:23 PM   #17
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Default Re: 99 SL1 is a flood victim

I got a photo of the water line. It went up to just above the relays at what appears to be the drivers side lower kick panel area. She describes the water line as the top of the pedals. Replacing blown fuses and submerged relays. Shes looking for the starter right now to determine if it took a bath.

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Old 11-16-2009, 03:23 PM   #18
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Default Re: 99 SL1 is a flood victim

Put jumper cables on it and it started right up. I'll suggest she does a fluid change.
Thanks for your help
David

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