Hi Guys, I have a 93 600SL with the infamous ASR issue. Seems to only happen when its up to full operating temperature, then stopped for gas etc, then on restart does the ASR thing. Sometimes recycling the ignition will cure the problem, but more than often it stays in LH mode. If I mash the accelerator pedal, I can seem to avoid the ASR mode. Although that can be fun, enough is enough ! I've made sure the accelerator linkage has a bit of slack, tried it tight, might be a touch better with a bit of slack. I have the built in LED and push button in the computer bay. I can't seem to find codes specific to that device. I am not probing the 38 pin connector. That is there for a reason, and someone must know where the table is for those blinks. I have 6 and 38. Clear them, try to drive still hot, and ASR right away. I have not replaced the throttle closed switch on the accelerator pedal yet. My injector wiring harness is perfect, pliable and vivid colors. Seems newish ! My Starter harness exhibits the cracking, but as no wires are touching or bare, I have not replaced that yet.
The pre-purchase Star Diagnostics indicated that the left TA was faulty. Of course they wanted $2,800.00 for another ! I have cut the sheathing up on the fender, and that wiring looked good. When I get a new gasket, I am going to remove the Left TA and take the cover off and check that wiring.
For the moment, I sure would like those fault codes specific to my vehicle and the built in push button LED. Thanks Guys !