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Turn-signals, trip computer, and backup sensors not working

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Old Mar 11, 2011 | 02:33 PM
  #1  
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foleyit
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Turn-signals, trip computer, and backup sensors not working

I have an '04 F350 6.0L, and find that my turn signals, trip computer, and back-up sensors are not working.

I checked the fuses for the turn signals (#8 fuse location) and what I think is the fuse for back-up sensors (if they are tied with the backup lights #18 fuse location). I could have their locations backwards. Also, will any of this show up in the DTC?

I read in another thread for 7.3L that replacing the relay for the turn-signals worked. Does anyone know the relay location for the turn-signals, trip computer, and backup sensors.
 
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Old Mar 14, 2011 | 10:12 AM
  #2  
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foleyit
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Problem solved

After going through each fuse/relay. I discovered that fuse location #27 Ignition Switch Feed was bad. This fuse controlled the following items on the my 04 F350 6.0L:
  • Turn-Signals (hazard flasher still worked) also because I thought it may be related to lever wipers and high beams still worked
  • Heated Seats (other seat controls still worked, up/down back/forward and lumbar)
  • Backup sensors
  • Trip Computer
  • Heater Fan Blower
 
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Old Dec 22, 2025 | 05:31 PM
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George 65
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I had almost same problems. Turn indicator back up sensor and seat heater not working. Fuse 27 fixed

I had almost same problems. Turn indicator, back up sensor and seat heater all out. Yes fuse 27 fixed it ...
Overhead Trip was already broken and still is to unrelated problem
 
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