After several months of no ASR light with Limp Mode, the monster resurfaced its head this week.
1994 E420 with ASR
Here is my new experience:
Got ASR light with LM. Restart and went away. Several times this week. Once a day, sometimes twice or 3 times a day.
I read and reset the codes at least 3 times:
ABS/ASR Module - Pin 6: 30 Can data bus to N4/1 interrupted (this one from previous experience shows up whenever there is a code that triggers ASR/LM)
EA/CC/ISC Module - Pin 7 : 14 Close Throttle Position Switch (S29/3) (on top of accelerator pedal)
Diagnostic Module - Pin 19 : 6 Idle Speed Control Inoperative (this one from previous experience shows up whenever there is a code that triggers ASR/LM)
Fortunately after years of knowledge accumulated in this forum, as well as personal experience, I have been able to fix, troubleshoot and help others solve many ASR/Limp Mode issues.
I am convinced it is an intermittent issue with the switch on the accelerator (S29/3). The codes are consistent.
Questions:
1.- Is there a test for the switch, without having to be a contorsionist?
2.- I could not find it in Peachparts, where can I find it (not dealer, please)
3.- Have anyone replaced this switch, and level of difficulty? (I am 6'2", and getting down there is no easy task for me. I remember the struggle when I replaced the switch on the brake pedal (S9/1) years ago fixing another ASR issue!!)
Thanks