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Cruise control works again after speedo swap. Thoughts?

posted by  M on  Mon Nov 25 20:57 CST 2002
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last visit: Sat May 1 10:12 CST 2010
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The cruise control didn't work because the speedo was partly broken. Fry the electronics in a working speedo by sending a power spike into the cruise output and I bet the odometer stops working before the speedo needle does. That's because the odometer and cruise/ECU output signals are closely related to each other - the speedo needle signal is something completely different.

CC was available from the early eighties or even late seventies (262C, 264?) but those units were completely different designs, using a separate pickup at the speedo wire connection behind the instrument, a Dana ECU and a bulky vacuum servo. Your design was introduced in 1986 when the electronic speedometer simplified things considerably. All electronic speedos have got the cruise/ECU output.

/Martin
--
65' 121, 73' 165






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