Thanks for the reply, Gilly. I very much need a definite answer, so I appreciate your offer to verify the electrical diagrams. My car does in fact have ASR traction control and ABS and ETS and VWH (that stands for Very Warm Heinie due to the seat heaters). Since I don't know what processing any of these other modules may perform on the signal and my primary goal is accuracy, my preference is to take the pulse feed directly from the left front wheel sensor. If you don't mind, I'd love to know on which connector the signal is present and where inside the cabin that connector is located. Thanks in advance for your help.

Best Regards,
Rob

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Robert Fini

'12 ML350 BlueTec, 87k
'06 E320CDI, 270k
'05 T1N Sprinter 2500/Pleasure-Way Plateau TS, 69k
'97 C36AMG, 313k (son's)
'94 E320T, 249k
'93 190E Sportline LE, 168k (daughter's)
'84 190E-2.3/5spd (Stage Rally Racer)
'66 230 W110 Sedan (Barn Find, Vintage Racer build in progress)