Hello guys,

I have a problem with ASR light on and gas pedal not responding. It comes on sometimes and reseting the ignition fixes it but it can come on in 1 minute or in two days. Yesterday it would not reset with ignition key. Here is the weirdest thing: if I put ignition on without starting the car then I hear actuator moving and gas butterfly moves fine. The second I start the car ASR comes on and gas doesn't work. Today it reset and worked for a little but I didn't drive the car to test it. It came one later and I dumped codes. Many came up. I did many repairs and never cleared them. I cleared them all. Once gas worked and ASR came on again I had code 2 on EA pin. It means many things: EA/CC/ISC control module (N4/1) or safety contact switch (M16/1s1) or Stop Lamp switch or Cruise control switch or Actual value potentiometer or Starter lock-out/back-up lamp switch (S16/3) or Engine speed signal or Vehicle speed signal or Closed throttle position switch or Safety relay in EA/CC/ISC control module. Also code 30 on ABS/ASR module: CAN data line to EA/CC/ISC module (N4/1)

I took actuator off the car and replaced wiring harness with plug to actuator as preventive measure after I fixed my engine harness that was completely broken and shorting. Actuator looked good, potentiometer looked good, motor and clutch worked fine. ASR used to come up before once in awhile and I thought wires are shorting inside actuator wiring loom but they looked fine. I checked stop light switch and it seemed to work fine along with gas pedal microswitch. Neutral switch on tranny was replaced with used switch and ASR would come up after that also.

Here is my questions: does code 2 mean that actuator itself is bad or I have open circuit within CAN line and it trips code 2? How can I check CAN for short/open circuit?
Can neutral switch be misaligned and still let the car to be started but it's not good enough and it trips those codes?

Please steer me in right direction. I'm stuck with this problem.

Thank you

Forgot to mention, sometimes when ASR comes on idle would jump up and down. It would be more or less steady when transmission is engaged and sometimes it would just stay at 1000rpms. Does it point to actuator being faulty or control circuits failure?

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1999 ML430 Silver 135k ml
Smoked LED taillights, Alpine in-dash DVD player, 12" sub, Pioneer components, 2 amps, 4200k HIDs, ML55 headlights, 20" rims, mirror LED blinkers

SOLD. 1996 E320 145k ml. Burgundy

SOLD but miss it everyday 1992 500sel Black
Chime buzzer mod,Alpine CD/MP3 player with stock amp,Euro headlights,S600 grill,20" rims, BEST CAR EVER!

SOLD. 1990 300E White
187k ml,smoked tails,Euro headlights,17rims,Intake,12" sub in first aid kit,alarm/autostart,buzzer mod