Cruise Control

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Rick78efi460
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Location: Moose Jaw SK Canada

Cruise Control

Post by Rick78efi460 »

In the bumpside trucks and up,including 1988 (but not limited too), if you install LED tail/Brake lamps your factory cruise will not work.
The cruise grounds through the brake lamps. LED won't flow enough current.............By design, applying brakes sends current to lamps and cruise loses ground to cancel.

Rick

1975 F600 Tow Truck
1978 F250 Crew Cab Ranger XLT SB 460 C6
1978 Bronco Ranger XLT EFI460 C6 4X4
1978 Bronco Custom 400 C6 4X4
1986 Bronco II 4X4

and a bunch of others


nohsp4u
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Location: Foresthill

Re: Cruise Control

Post by nohsp4u »

I know if you put LED taillights in they flasers will flash too fast, there is a special flasher unit you buy form the lighting stores to fix this. Maybe it will also fix the cruise issue.

Image


godspeed
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Re: Cruise Control

Post by godspeed »

Nope. Turn signals and brake lights are two different circuits.

The new flasher unit has a lower the capacitor value to match the higher resistance of the LEDs. The product of the two (R x C) is what sets the blink rate.


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