Service Stablity system - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Bonneville GXP/ Northstar Powered Cars Discuss your Bonneville GXP and/or any other Northstar powered Olds or Cadillac... Including the 3.5L Twin Cam V6 (Short Star ) 4.0L and 4.6L Northstar V8's. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 02-27-2009, 09:19 PM   #11
Junior Member
Posts like a Ricer Type-R
 
Join Date: Dec 2008
Location: Iowa
Posts: 16
Thanks: 0
Thanked 0 Times in 0 Posts
tommytime is on a distinguished road
Default

Only owned my Bonny a couple weeks. Just had that happen tonight, as I was driving home from work. So, I thought I better check this forum to see if anyone had posted about it - and lo and behold.....

I was waiting awhile to pass on the highway and when it FINALLY opened up, I juiced it. Right as the engine revved up pretty good, All the lights came on. The Lo Trac light came on, the Anti-Lock brake light came on, the DIC said SSS, and the HUD said SSS. No loss in power, or weird noises, or vibrations, or anything and I was only 5 minutes from home, so I kept driving with the radio off and watchign all guages. No problems of any kind except, that a bunch of warning lights were lit. When I got home, I parked in the driveway and turned it off. I let it sit a minute, then restarted and no lights were on. Let it run for 5 minutes or so and no probs. Makes me nervous, but hopefully it won't happen again.

Glad to hear that it is probably not too serious of an issue, but I will keep my eye on it.
tommytime is offline   Reply With Quote
Old 02-27-2009, 09:56 PM   #12
Senior Member
Posts like a Corvette
 
Join Date: Nov 2006
Location: Alberta, Canada
Posts: 1,446
Thanks: 0
Thanked 0 Times in 0 Posts
ddalder is on a distinguished road
Default

This is a very old thread so the Moderators may prefer moving this to a more recent one... Regardless, this problem can be caused by a number of different things. The steering wheel position sensor is certainly one, but also a bad wheel speed sensor and connector corrosion are others. I helped a friend diagnose his (had been doing this for three years) and in his case it turned out to be bad rear wheel speed sensor harness. Corrosion existed at both wheel hubs but also in the connector where the wheel speed sensor harness plugs into the main body harness under the left rear of the vehicle. The fix was to replace the wheel speed sensor harness and to splice back into the main body harness because the wiring was black and fragile with corrosion about 2 feet into the body wiring.

Having said all this, the same message appeared once on my car (I've had it two and a half years now) and this was well over a year ago now. I would suggest you simply monitor it at this point. You may never see it again (or at least anytime soon).

Last edited by ddalder; 02-27-2009 at 09:58 PM.
ddalder is offline   Reply With Quote
Old 02-28-2009, 11:05 AM   #13
Administratus Emeritus
Certified Car Nut
 
GXP Venom's Avatar
 
Join Date: Jan 2006
Location: Purgatory, Pennsylvania
Posts: 16,538
Thanked 7 Times in 4 Posts
GXP Venom is on a distinguished road
Default

It could be as simple as when you got on it and spun one tire just a little. When you do this at a low speed you just get the T/C light, when its done at a higher speed, all hell breaks loose. If I activate my nitrous by stepping down hard on the throttle in 3rd gear, I get the same behavior. Usually the loose/corroded WSS connection will result in a flickering, or intermittent fault. They are prone to it because of their location behind the tire. Best to unconnect and finger dab some dielectric grease or vaseline in each whenever you have the wheel off.
GXP Venom is offline   Reply With Quote
Old 02-28-2009, 03:14 PM   #14
Senior Member
Posts like a Corvette
 
Join Date: Nov 2006
Location: Alberta, Canada
Posts: 1,446
Thanks: 0
Thanked 0 Times in 0 Posts
ddalder is on a distinguished road
Default

As Venom says, it'* a good idea to apply a little dielectric grease to help keep the moisture out. The rubber on these are designed to be "self lubricating" and in theory shouldn't require this... however we've seen many instances to the contrary. Personally, I tend to stay away from the vaseline because I'm not sure how it may degrade the rubber. Dielectric grease is made for this and it'* fairly inexpensive. This is a personal choice however.
ddalder is offline   Reply With Quote
Old 03-18-2009, 12:14 AM   #15
Senior Member
Posts like a 4 Banger
 
Join Date: Apr 2007
Location: Chicago (Elgin), IL
Posts: 133
Thanks: 0
Thanked 0 Times in 0 Posts
CMNTMXR57 is on a distinguished road
Default

I dunno, in the last 10,000 miles I've pretty much tore apart my whole car to replace everything that has gone awry on it. I love the car, but I HATE this car too!

I almost dumped it for an STS-V a few weeks back because I'm simply tired of working and doing maintanance on it EVERY flipping weekend. Now a damn wheel bearing is going south!

As far as DTC, C1288, one of the following conditions must be present for it to trigger;
- Both phase A and phase B are greater than 4.9 volts for 1.6 seconds
or
- Both phase A and phase B are less than 0.2 volts for 1.6 seconds
or
- The difference in the changes in phase A and phase B has been greater than 35.2* for 9.76 milliseconds.

Phase A and Phase B are steering sensor inputs that measure the phase angle between phase A (signal 1) and phase B (signal 2).

This code is what will set the "service stability system" message. It will also allow your ABS/traction control to remain functional, so no loss of either of these.

Replacing the steering wheel position sensor, is actually one of the last steps in troubleshooting the system and requires airbag disabling, removing the wiper/washer bracket, and the tilt wheel spring. You then need to remove two pivot pins in the column support assembly (GM has a tool for this, but I've used a small punch). You should be able to see the SWPS then. Before that, requires a lot of measuring of reference signals and voltage'* throughout the SWPS circuit.

Last edited by CMNTMXR57; 03-18-2009 at 12:31 AM.
CMNTMXR57 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Service Stablity system jethrow Everything Electrical & Electronic 2 06-27-2009 07:24 AM
Service Theft System SteveGh2000 2000-2005 34 02-08-2005 02:27 PM
Service Stability System iRocco 2000-2005 12 01-22-2004 04:17 AM
Service Stability System iRocco General GM Chat 0 09-03-2003 11:40 AM
Service Theft System asdfbadboy 2000-2005 2 01-24-2003 08:25 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 08:01 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.