Sorry, I should look at stuff more before I reply from memory. The diode
leg to measure on is the one closest to the speedo, and the pin 8. The
diode is dark with a band at one end.

Mark

mark drillock wrote:
> The 150 ohm resistor is the biggest component of all those ones that are
> lined up together in the center section of the blue foil. It is in a
> small gap in the foil so it's heat won't cook the plastic foil. Your
> year has a diode in the circuit that prevents you from simply measuring
> ohms between those 2 pins on the 14 pin connector. Instead you need to
> measure from pin 8 and from one leg of the diode, the leg closest to the
> tach. The diode is the one right next to the 150 ohm resistor.
>
> Mark
>
> Shawn Wright wrote:
>> Hi,
>>
>> I have two big 120ohm resistors, and a 470ohm in series with the LED. All
>> three check out ok, yet the resistance between terminal 8& 11 is 540ohms,
>> not the 160 it should be. Or is that also an old spec in Bentley?
>>
>> Thanks
>>