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Warning Lights On. Please Help!


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#1 dbrimmer

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Posted 17 February 2012 - 12:09 PM

Hi Guys!I have something weird with my smart passion.. I noticed that the UJ of the steering column was due so I dismantled the subframe and changed it. During the process I lubricated steering rack and replaced the ball joints as well. I installed subframe etc etc and also dashboard and battery as I had to remove them.Got on the driver seat and turned the key to ignition. There was a beep and the display showed a key sign... no start. turned off and on again, and no start. with the third time with both doors closed as initially I had passengers door open it started normaly! already something weird as normally it would start with an open door.More to come...I decided to go for a test ride! steering felt great. No knocking, but after a while the ABS and Traction control sign came on! turned off and on again for a couple of times but without any success.. Warning lights still on.Meanwhile I gathered spread tools in the garage and decided to put it in garage so that tomorrow I could investigate what's wrong. Pull down the handbreak with engine started and now the handbreak light remains on! it remained always on irrelevant if its up or downBy the way I tried the brakes to see if ABS works and nope!! No ABS..What could have gone wrong? Actually I didn't touch any sensors or electrical parts apart from battery! Is there a Reset or something when battery is disconnected and connected again after 4 days?I appreciate the help and comments you'll post..Thanks again,Daniel

#2 Alex

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Posted 17 February 2012 - 12:33 PM

Steering wheel angle sensor. The control systems need to know the angle of the steering to know how much difference in wheel speeds to expect. The steering wheel probably got turned a bit with the UJ off, and it's now out of position.Handbrake light is not just the handbrake, any braking system fault will set it off. No specific idea.

#3 CANMAN

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Posted 17 February 2012 - 12:39 PM

Hi Daniel, What you are describing here sounds like the immobilizer. Just press the unlock button on the key with the ignition in the off position to reset it.

Got on the driver seat and turned the key to ignition. There was a beep and the display showed a key sign... no start. turned off and on again, and no start. with the third time with both doors closed as initially I had passengers door open it started normaly! already something weird as normally it would start with an open door.

As to your other problem with the ABS it sounds like a classic case of a cracked reluctor ring on one of the rear wheels ( the flat metal disk with the toothed notches behind the brake drum). I am confused as to why it just started when you did the steering repair. You said you removed the dashboard, perhaps you forgot to hook up a connector somewhere? Canman
2005 steam green cabriolet, cruise control, armrest, side marker lights,
2006 phat red coupe, remote oil filter, armrest, remote battery booster, side marker lights, T.K's restrictor, scangauge, auto up/down windows,

#4 dbrimmer

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Posted 17 February 2012 - 01:06 PM

Steering wheel angle sensor. The control systems need to know the angle of the steering to know how much difference in wheel speeds to expect. The steering wheel probably got turned a bit with the UJ off, and it's now out of position. Handbrake light is not just the handbrake, any braking system fault will set it off. No specific idea.

Hi Alex, Well the steering wheel was removed together with the steering column. steering wheel was not disconnected from column so I cannot understand what wheel angle sensor could result with! is there any sensor for the steering wheel? Thanks

#5 dbrimmer

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Posted 17 February 2012 - 01:10 PM

Hi Daniel, What you are describing here sounds like the immobilizer. Just press the unlock button on the key with the ignition in the off position to reset it. As to your other problem with the ABS it sounds like a classic case of a cracked reluctor ring on one of the rear wheels ( the flat metal disk with the toothed notches behind the brake drum). I am confused as to why it just started when you did the steering repair. You said you removed the dashboard, perhaps you forgot to hook up a connector somewhere? Canman

I will give a check from dashboard side. maybe there is something which i have not connected! but yes your right.. its weired how this all happened when I dis-assembled the steering column.. there should be something in common... Thanks mate:)

#6 CANMAN

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Posted 17 February 2012 - 01:18 PM

Daniel,I forgot about the steering wheel angle sensor.Alex is right, you will have to take your car to Mercedes to recalibrate the steering wheel angle sensor with a Star machine.Canman
2005 steam green cabriolet, cruise control, armrest, side marker lights,
2006 phat red coupe, remote oil filter, armrest, remote battery booster, side marker lights, T.K's restrictor, scangauge, auto up/down windows,

#7 tolsen

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Posted 17 February 2012 - 01:25 PM

Evilution has instructions on how to set steering angle sensor to zero. http://www.evilution...ndex.php?id=715

#8 dbrimmer

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Posted 20 February 2012 - 12:51 AM

Thanks a lot for you help guys!! you're great :))




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@  FlossyTheSmart : (28 August 2014 - 10:59 AM) Excellent, although I see the category listing must show the original author, rather than the person who last edited it.
@  SkydiverChris : (28 August 2014 - 09:18 AM) Edited successfully. I'm in the list now.
@  FlossyTheSmart : (28 August 2014 - 05:38 AM) BTW, I'm fairly certain the wiki at the top of the page should be fully operational, and editable by anyone, but no one has edited it since I moved everything back in. Could someone try making an update, maybe on the "How many KM on your smart" page or something?
@  P0003 : (27 August 2014 - 04:02 PM) =]
@  SkydiverChris : (27 August 2014 - 04:02 PM) Just an update, but it looks like I've found a ride for the window. Thanks everyone!
@  SkydiverChris : (26 August 2014 - 02:14 PM) If anyone is headed from the London, ON area to the Ottawa area, I have $100 for anyone who can get a rear window to me.
@  FlossyTheSmart : (26 August 2014 - 09:20 AM) Vote for my picture on us129photos.com HERE so that I can get a free poster!
@  FlossyTheSmart : (26 August 2014 - 08:24 AM) Cadillacman, good thing you figured it out. That's a pretty weird string to block on...
@  FlossyTheSmart : (26 August 2014 - 08:23 AM) I think the SAM and EDG (Presumably the ECU you mean) have to be paired. The SAM stores the key coding
@  P0003 : (26 August 2014 - 08:20 AM) I don't know which of the 2 items actually stores the key details
@  P0003 : (26 August 2014 - 08:20 AM) What about pairing a used SAM with an existing ECU... is that workable?
@  cadillacman : (26 August 2014 - 08:18 AM) All topics with string '888' were being blocked by a SiteBlock addon ... gads, the perils of avoiding sketchy websites
@  FlossyTheSmart : (26 August 2014 - 08:17 AM) Don't think there's a way to disable the immobilizer
@  P0003 : (26 August 2014 - 08:15 AM) I wonder if there is a way to completely disable the immobilizer function while I'm getting things done. What a pain in the neck.
@  P0003 : (26 August 2014 - 08:14 AM) Oh dear what have I gotten myself in to... hah. Well in another month things should show up. I was just put off by the dealer telling me it was 100% impossible to code a used key to a used ecu :(
@  FlossyTheSmart : (26 August 2014 - 08:12 AM) you just need the electronics work.
@  FlossyTheSmart : (26 August 2014 - 08:12 AM) Lol yeah. In your case though, you won't need to spend as much, as you don't actually need new keys or blades
@  P0003 : (26 August 2014 - 08:11 AM) Looks like I'm in for a fun time. Ouch.
@  P0003 : (26 August 2014 - 08:10 AM) "If you bought a car with 1 key or some how lost both keys then you are about to agree with me that you're
an idiot." lol
@  FlossyTheSmart : (26 August 2014 - 08:10 AM) He notes under the 451 section that it is impossible to recode a 451 for more keys if you don't have an original. He says this is to prevent someone from walking up, coding a key, then driving your car away, which is apparently possible on the 450 and roadster. You may be in luck