EDIT: Much of this post is not relevant since the 92 and 93 ASR systems are different.
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I am basing my comments on the presumption that the 93 500SL is the same as my 92. I believe the harness you rewired would be the leads from the ETA (Electronic Throttle Actuator) to the control unit. Yes, these wires like to crumble...

In saying that the ASR light stays on I also presume the car stays in "Limp Home" mode. Unfortunately, you can't just disable the ASR since it is integral to the operation of the car...

Logic would say that you have a wiring problem in your repaired harness. You may find yourself purchasing a new ETA which includes some of the wiring. Hopefully your control unit has not become damaged in the midst of this...

The only wiring information I was able to locate did not give pinouts, but indicates there are 7 wires. 2 for the DC actuator motor, 2 for the saftey switch, and 3 for the position sensor potentiometer.

Unfortunately, I am told there are no codes to be read from the control unit on these early models. If someone knows otherwise, please direct me to the information!

Good Luck!

__________________
02 S500
92 500SL
92 400E (Sold)
87 300E (Sold)
83 300D Turbo (Sold)
75 300D (Sold)
74 240D (Sold after 20 years)

I GIVE UP!!!
I rewired most of the engine comp.--same problem
. I tried tape on pins-- the same problem. I tried to disconnect the brake light switch--same problem
I don't know what to next about my asr siduation.
I am about ready to get rid of the car.

Does any body have any more suggestions?
Thanks

Sal

ps I would be happy without any electronics in my car if this would be possible.

It CAN be fixed, but it isn't really a DIY project...

Where are you? Perhaps someone can recommend a reputable shop to help.

__________________
02 S500
92 500SL
92 400E (Sold)
87 300E (Sold)
83 300D Turbo (Sold)
75 300D (Sold)
74 240D (Sold after 20 years)

Just go into the EA/CC/ISC control module and get the codes ..
They are right there ...'93/500sl/Chassis 129.067................

Pin # 7 on the 38 pin Diagnostic Port.

Page 48..AE/CC/ISC w/ASR .
http://www.geocities.com/MotorCity/Downs/1039/mercedes/cs1000_mb.pdf

Get a $2 led at Radio Shack and build the tool..
Post findings.

__________________
A Dalton

Arthur,

Are you saying this applies to my 92 as well?
Where can I get a CS1000 Scanner?

__________________
02 S500
92 500SL
92 400E (Sold)
87 300E (Sold)
83 300D Turbo (Sold)
75 300D (Sold)
74 240D (Sold after 20 years)

What do you want a scanner for??
You build a led/sw tool for $10 to get the codes...
They are Flash Format.

__________________
A Dalton

I guess you don't read that well. . . you need to buy a wiring harness that's made for your car (they are different with different models/years) and install it carefully removing the old one as you go.

Read the stored codes and report them here. Then I can help you with the ETA repair.

SPEACE: You "came" in implying that you were knowledgeable in this area. . . but it's painfully obvious, that you know nothing of what's going on.

If your car is having a problem, you should start a new thread and we can help you. Purchasing a CS1000 . . . indeed!! Buy two, they're small!

__________________
Regards . . . . JimF
-------------------
'94 S500 Cpe

Visit my Mercedes Web Page

I am in jupiter fl.
Does any one know of a good shop in this area that could help me with my asr problem?
THANKS

Sal

Jim,

It turns out that the 1993 500SL ETA and associated wiring bears little resemblance to what is on my 1992 500SL. The harnesses are different and my car does NOT even have a 32 pin diagnostic plug.

I was not trying to hijack the thread and troubleshoot a problem of my own.

I only wanted to be prepared and learn what scanner options I had in order to be prepared for what seems to be an inevitable problem waiting for me sometime in the future. I was thinking such a scanner might also be useful to salsaia as well. Arthur pointed out that the codes can be read without a scanner which is good to know.

My comments were indeed off-base. They were not applicable for this car.
Thank you for pointing out my error so delicately.


SALSAIA,

I'm sorry I couldn't be of more help to you. Listen to what Jim and Arthur say. You have their attention and they are both very knowledgeable in this area.

Whunter has posted some links for further reading. There are lots of things to read there, but don't be confused by the posts that refer to disabling ASR. The procedures in those posts don't bypass your failing ETA, but describe ways to overide the ASR's intervention when a wheel breaks traction.

I've been to Jupiter many times and love the area, but don't know of any shop nearby.

Good Luck!

__________________
02 S500
92 500SL
92 400E (Sold)
87 300E (Sold)
83 300D Turbo (Sold)
75 300D (Sold)
74 240D (Sold after 20 years)

But you do have a 16 pin connector from which to read fault codes, with essentially the same blink code reader, although the CIS diagnostic system is less advanced than the LH motors of 1993 SLs. Indeed disabling ASR does not rid one of all ASR / limp home mode problems. It seems that many people confuse the two concepts.

I am going to build the radio shack tool but I still have one question. How do you get the error code from the led light?

Sal

The procedure for using the reader is described in MENU#2 entitled "DTC Readout". This talks about the "38 Pin Diag Connector" so just sub your 16 pin connector.

To ERASE the codes follow the procedure in "Erasing DTC memory".

Count the blinks and use AD's link in post#11. If that's confusing, let us know what they are.

__________________
Regards . . . . JimF
-------------------
'94 S500 Cpe

Visit my Mercedes Web Page