OK, I replaced my Pedal Position Sensor (per OBD II Throttle Position Sensor- High voltage) with a good used one, re-set the pedal settings, and the Error Code went away. It's just forward of the Master Brake Cylinder and couldn't be easier to get to.

It might just be a coincidence, but now I get a warning that my ABS and BAS systems need to be looked at. There are still no Error Codes in the OBD II reader.

Please chime in with why this happened and how to fix it?

Thanks,

AL

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03 CLK430 Cabrio 211K Pweter Silver/ Oyster Leather
90 300SEL 214k Pearl Black/ Alto Grey/Black Leather

Prior: 85 190E, 88 300TE, 89 300TE, 90 300E 2.6, 90 300TE, 92 300E 2.6, 91 and 93 300SL, 87 Ferrari Mondial Cabrio

Here's a pic of where the Throttle Position Sensor is on a my car ( just in front of the Master Brake Cylinder-great design!).

I re-set the brake system using the "turning the wheel lock to lock method".
So far no more warning lights.

Attached Thumbnails

 

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03 CLK430 Cabrio 211K Pweter Silver/ Oyster Leather
90 300SEL 214k Pearl Black/ Alto Grey/Black Leather

Prior: 85 190E, 88 300TE, 89 300TE, 90 300E 2.6, 90 300TE, 92 300E 2.6, 91 and 93 300SL, 87 Ferrari Mondial Cabrio