- posted
18 years ago
cruse control dosn't work
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- posted
18 years ago
You did not mention the obvious while messing with electrical compoenents.
fuses
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- posted
18 years ago
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- posted
18 years ago
Your best bet would be to look at the mechanical side. Not having a new diesel, I don't know how it operates on your vehicle but if it is a vacuum controlled motor, check to make sure it is still getting a vacuum on its input and if it is an electric stepper motor, make sure it is still connected.
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- posted
18 years ago
You left out the option of there being no motor at all (vacuum, electrical, or otherwise).... because with a manual tranny, there's nothing mechanical that needs to be manipulated (no TV cable like on an automatic). All cruise control functions are handled directly by the ECM (it ignores the APPS input, and substitutes it's own fueling levels based on desired vs. observed speed), so the only thing that he could have mucked up is the brake switch sense circuit... the ECM thinks the brake is depressed, so it won't engage CC.