2004 S600 Brake light stays On and can't shift out of Park
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Junior Member
Joined: May 2012
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04 S600 16 Honda
2004 S600 Brake light stays On and can't shift out of Park
Something strange happened last night after start up the car...
With the headlights off and foot off the brake pedal I saw the reflection of my brake lights bouncing off the garage wall then walk around to check and didn't thinking much then jump in to back out but it's stuck in Park again, I said "again" is because it got stuck in Park two years ago and I replaced that little black plastic thing with an aluminum one, so I highly doubt it broke again?
My issues are.. Brake lights(all three) are constantly on till shut off and shifter stuck in park,could they both be related between one and another?
Oh,No warning/message in the instrument cluster,No water intrusion ever so it shouldn't be a SAM problem? could this be as simple as a bad brake light switch or...
Greatly appreciated if someone here can point me to the right direction to start trouble shooting,Thanks in advance!!
Edit; After my 1st posting this morning: Is it wise or should I disconnect/re-connect the battery then do a Re-set/Re-learn procedure?
Knowing all the knowledgeable regular posters here giving excellent advise on this Forum(100% of all of my minor issues are resolved/fixed) someone has to know what I'am talking about
Edit 2. Next day(Today) 10/19 Bought a new brake light switch from MB dealer @$31.xx +Tax and then remove/Installed, No difference . Sad day today..
Amazon, Ebay, Rock auto,Auto Zone,Advance Auto are $12..xx- $25.xx
With the headlights off and foot off the brake pedal I saw the reflection of my brake lights bouncing off the garage wall then walk around to check and didn't thinking much then jump in to back out but it's stuck in Park again, I said "again" is because it got stuck in Park two years ago and I replaced that little black plastic thing with an aluminum one, so I highly doubt it broke again?
My issues are.. Brake lights(all three) are constantly on till shut off and shifter stuck in park,could they both be related between one and another?
Oh,No warning/message in the instrument cluster,No water intrusion ever so it shouldn't be a SAM problem? could this be as simple as a bad brake light switch or...
Greatly appreciated if someone here can point me to the right direction to start trouble shooting,Thanks in advance!!
Edit; After my 1st posting this morning: Is it wise or should I disconnect/re-connect the battery then do a Re-set/Re-learn procedure?
Knowing all the knowledgeable regular posters here giving excellent advise on this Forum(100% of all of my minor issues are resolved/fixed) someone has to know what I'am talking about
Edit 2. Next day(Today) 10/19 Bought a new brake light switch from MB dealer @$31.xx +Tax and then remove/Installed, No difference . Sad day today..
Amazon, Ebay, Rock auto,Auto Zone,Advance Auto are $12..xx- $25.xx
Last edited by fisherman123; Oct 20, 2019 at 12:22 PM.
Thread Starter
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04 S600 16 Honda
Quick update, Since R/R Brake light switch didn't do anything I am leaning to think it's a bad SAM unit under the back seat(all fuses checked out) and does that SAM module controls Brake lights or it's the other two SAMs under the hood?
Last edited by fisherman123; Oct 20, 2019 at 11:59 AM.
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Joined: Dec 2012
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From: Ball Ground, GA (N of Atlanta)
2003 S500 2007 GL450
The rear SAM controls the brake lights.
Any possibility that you have gotten water in thru the HVAC intake plenum? That can cause all sorts of problems.
Any possibility that you have gotten water in thru the HVAC intake plenum? That can cause all sorts of problems.
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04 S600 16 Honda
Thanks for confirming Wally! and No,no water is-present anywhere front and back. That drain hole by the firewall has been checked and cleaned regularly.
Thinking to buy a used SAM from ebay. Do you or anyone know if any coding/programming is needed after the swap or just a simple plug and play? Thanks.
Thinking to buy a used SAM from ebay. Do you or anyone know if any coding/programming is needed after the swap or just a simple plug and play? Thanks.
MBWorld Fanatic!
Joined: Dec 2012
Posts: 2,473
Likes: 439
From: Ball Ground, GA (N of Atlanta)
2003 S500 2007 GL450
Yes, the SAM usually needs to be programmed (using DAS) to match the options installed on your particular car.
It would be a good idea to have the car checked on DAS, if you can find an independent shop who have the system and know how to use it. You will need them to program the SAM anyway, and it might prevet you from buying parts that won't solve the problem.
The following ideas probably won't fix the problem, but there is a slim chance, and they are easy and free.
Do the primary reset sequence - start the engine, turn the steering wheel all the way left, then right, then repeat. Shut the engine off, restart, repeat. Shut the engine off, start it and see if the reset helped at all.
Check fuses F15 and F16. The system giving you problems is not as simple as it is on most cars, which is why you are checking fuses to fix lights that are staying on.
It would be a good idea to have the car checked on DAS, if you can find an independent shop who have the system and know how to use it. You will need them to program the SAM anyway, and it might prevet you from buying parts that won't solve the problem.
The following ideas probably won't fix the problem, but there is a slim chance, and they are easy and free.
Do the primary reset sequence - start the engine, turn the steering wheel all the way left, then right, then repeat. Shut the engine off, restart, repeat. Shut the engine off, start it and see if the reset helped at all.
Check fuses F15 and F16. The system giving you problems is not as simple as it is on most cars, which is why you are checking fuses to fix lights that are staying on.
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04 S600 16 Honda
Like Wally says I definitely need the system diagnosed
That been said,can any member with Xentry reading this could possibly come out to do a scan for me? (Queens,NY 11432).
and of course I'll pay you for your time, Thanks.
That been said,can any member with Xentry reading this could possibly come out to do a scan for me? (Queens,NY 11432).
and of course I'll pay you for your time, Thanks.
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Thread Starter
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04 S600 16 Honda
It's just I don't like the idea to double,triple Posting all over the Net for the same question.I am already a member there about the same time when I sign up here(2012?)
What? Wow,Time does Fly. Hope my Issue gets a little more exposure there
Thanks again Wally! and will keep everyone update here as well.
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Thread Starter
Junior Member
Joined: May 2012
Posts: 23
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04 S600 16 Honda
Seems like the functionality of the Brake light/switch is doing the very opposite,no? Bad SAM? where do I go from here? thanks
I am desperate in need to have someone that could run a diagnose with Xentry then going forward. Help Please.. Thanks for reading.
Please,can any member with Xentry here reading this could possibly come out to do a scan for me? (Queens,NY 11432).
and of course I'll pay you for your time, Thank you.
Last edited by fisherman123; Oct 27, 2019 at 12:14 PM.
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Joined: Oct 2019
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W220 S320
As long as you get the same Sam module for your engine spec it can be plug and play, if you find that some of the optional extras don't work then you'd need to use your old Sam to reprogramme the new one. But they all power the basics like brake lights etc.
