Delboy Andco

Once again I am reaching out to this forum to keep my car running (2009 W211 E350 base):-
I am receiving a check engine light, occasional limp mode. Please see attached file. I have replaced the throttle body, inspected the wiring, yet the problem keeps re occurring. I am debating whether to replace throttle body wire from connector back 12 inches (that's as far as I can trace it back.
I am hoping there is a great mind here that can give me some direction.

Thank you in advance!!!

0160 (M16/6 throttle valve actuator) actual valve potentiometer 1 or 2 has failed (P2135)

0164 (M16/6 throttle valve actuator) There is a comparison error between actual valve potentiometers 1 and 2 (P2135)

CaliBenzDriver

The great thing is your issue is well delimited to TB circuit.

Progress is going to require the wiring diagram for your VIN. You can buy it cheap under 5mn from alldatadiy or competitors...

With that in hand you'll measure the TB directly at the computer connector with a basic DVM

This will test that rodents did not chew on any of your harness.
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> Do''s & don't to Save time & money:

• Stop replacing good/untested parts,
• Don't cutoff good/untested harness,
• Dont replace ECU either unless tested bad
• Do clean POOR GND connections for free

Plutoe

have you followed the applicable DAS Xentry tests for the respective faults

Delboy Andco

Got it thank you.

Delboy Andco

I need to use a digital voltage meter, follow the diagnostic procedure in DAS/Xentry. I will look online for the wiring diagram if it is not in DAS.

Thank You!

Delboy Andco

I have xentry, but I am not able to locate the wiring diagram for the M16/6 connection. Would you be kind enough to send me a pdf copy if you have one?
My vehicles is Mercedes E350 2009 VIN WDBUF56X39B376564.

Thank You