2003 Ford F-250 cruise control inop

Tiny
CARTECH2
  • MEMBER
  • 2003 FORD F-250
  • 5.4L
  • V8
  • 2WD
  • AUTOMATIC
  • 288,658 MILES
Replaced brake release pressure switch on master cylinder, still inop, replaced brake light switch still no good. Any place else to check. Tried diagnostics on steering wheel inconclusive. No sure of procedure and read out. Can get the cruise light to flash once. Thanks
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Monday, September 21st, 2015 AT 3:08 PM

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Tiny
M_H_RITZEL
  • EXPERT
The brake light switch or what they call BOO is under the dash connected to the brake push rod. It also functions as a digital information switch. You will have to remove the trim under the dash. Two wires. Check both sides with a static light tester. One side should be hot and the other not until you push the pedal down. If the light stays on both wires the switch would be canceling out your cruise control.
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Monday, September 21st, 2015 AT 3:45 PM

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