SL/R129: ASR - Throttle Module
Thread Starter
Newbie
Joined: Oct 2009
Posts: 8
Likes: 0
From: Houston, Texas
1995 SL500, 2008 GL450, 2005 G35
ASR - Throttle Module
Thanks in advance for any help. I read all the posts I could find on this issue and am a little confused.
I have a 1995 SL500, built in late 1994. ASR light came on and went into limp mode. Codes showed the electronic throttle actuator to be the problem. I had it replaced. It is now two weeks later and the ASR light came on again and put the car in limp mode. I stopped the car, turned it off, started it again and it ran normally (just like with the ETA). Took it back to my indy and he is telling me the problem is now the "throttle control module" at a cost of $1,532.00 plus labor. I am unclear as to what the "throttle control module" is and where it is located.
Over the last couple of years my indy replaced the engine wiring harness, MAF and now the throttle actuator. I have replaced the plugs, wires, caps, rotors, (in the last few weeks), among many, many other things.
What is the throttle control module? Where is it located in the engine compartment? And, where can I purchase one? I have looked at parts.com and autohausaz.com and have not had any luck finding the part to which the indy is referring.
Thanks again.
Mike
I have a 1995 SL500, built in late 1994. ASR light came on and went into limp mode. Codes showed the electronic throttle actuator to be the problem. I had it replaced. It is now two weeks later and the ASR light came on again and put the car in limp mode. I stopped the car, turned it off, started it again and it ran normally (just like with the ETA). Took it back to my indy and he is telling me the problem is now the "throttle control module" at a cost of $1,532.00 plus labor. I am unclear as to what the "throttle control module" is and where it is located.
Over the last couple of years my indy replaced the engine wiring harness, MAF and now the throttle actuator. I have replaced the plugs, wires, caps, rotors, (in the last few weeks), among many, many other things.
What is the throttle control module? Where is it located in the engine compartment? And, where can I purchase one? I have looked at parts.com and autohausaz.com and have not had any luck finding the part to which the indy is referring.
Thanks again.
Mike
MBWorld Fanatic!
Joined: Jan 2007
Posts: 1,152
Likes: 29
From: Sydney, Australia
190D 2.5 (x2), 190E 2.6, W202 C240,W202 C43 (C55), W210 E55, W212 E250CDI
That sounds about right. The throttle control module (back in the days when there was a seperate control unit for the throttle) is a common failure when the throttle body dies. The wiring in the throttle body breaks up like the rest of the wiring harness and damaged the control unit.
Not many options other that getting it repaired or replace it. being an unusual control unit it's unlikely to find anything non genuine, by a non MB supplier can probably get you a OEM one.
Not many options other that getting it repaired or replace it. being an unusual control unit it's unlikely to find anything non genuine, by a non MB supplier can probably get you a OEM one.
Thread Starter
Newbie
Joined: Oct 2009
Posts: 8
Likes: 0
From: Houston, Texas
1995 SL500, 2008 GL450, 2005 G35
E-Gas Module
Thanks everyone. The problem turns out to be a problem with the E-Gas Module. The only parts I am finding are new. Anyone know of rebuilt modules?
Thread Starter
Newbie
Joined: Oct 2009
Posts: 8
Likes: 0
From: Houston, Texas
1995 SL500, 2008 GL450, 2005 G35
Pulled the codes myself today. They are:
Diagnostic Module - Code 17 - CAN communication faulty in between control units;
Electronic Accelerator - Code 2 - EA/CC/ISC control module or many other things;
Electronic Accelerator - Code 3 - Right EA/CC/ISC actuator;
ABS w/ASR - Code 30 - CAN data line to electronic accelerator/cruise control/idle speed control module.
E-Gas Module bad? Thoughts?
Diagnostic Module - Code 17 - CAN communication faulty in between control units;
Electronic Accelerator - Code 2 - EA/CC/ISC control module or many other things;
Electronic Accelerator - Code 3 - Right EA/CC/ISC actuator;
ABS w/ASR - Code 30 - CAN data line to electronic accelerator/cruise control/idle speed control module.
E-Gas Module bad? Thoughts?
