Hi,

First off, I'm not sure how much this applies to you, but here what I get from my CD (W124, '87 260E).

Since you're getting KOEO, Duty Cycle approx. 70% (4.03 V), you have ON/OFF Ratio Fault Recognition...

Duty = 70% {I think it has to be lingering at 70 & not fluctuating)

Possible causes of fault = No TD/TN signal. Open circuit in wiring at KE control unit.

Test Scope = Test TD/TN signal.

I'm not sure what TD/TN signal means but it's a start...

good luck,



Remedy/Test step

__________________
sjsfiji

'87 W124 260E (DD)
98K orig. mi. @7/15
CLK 7-Spoke Forged Wheels
Neuspeed springs/Bilstein Sport
4/3 bump (F/R)

'97 993 Carrera
106K orig. mi.
Always driven like it's stolen