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Turn signal problems

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Old Mar 2, 2025 | 01:27 PM
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D Craig
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Turn signal problems

Got an 06 6.0 with blinkers that don’t work. Hazards work however the left and right turn signals do not. I swapped the relay under the dash behind the AC controls and the trailer tow relays under the hood as well as checked all fuses none are blown. Any ideas?? Thanks.
 
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Old Mar 2, 2025 | 02:32 PM
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Disconnect the trailer harness if you have one by rear bumper.,

Also there should be two flasher relays.
One for hazards, and one for turn signals.

Likely different specifications.
 
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Old Mar 3, 2025 | 07:45 AM
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From: Newton Illinois
Originally Posted by D Craig
Got an 06 6.0 with blinkers that don’t work. Hazards work however the left and right turn signals do not. I swapped the relay under the dash behind the AC controls and the trailer tow relays under the hood as well as checked all fuses none are blown. Any ideas?? Thanks.
These trucks use 1 flasher that takes care of turn signals and hazards,could be the problem, or the multi function switch.
 
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Old Mar 5, 2025 | 12:17 PM
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Originally Posted by lshort
These trucks use 1 flasher that takes care of turn signals and hazards,could be the problem, or the multi function switch.
where is the multi functional switch? I unplugged the trailer harness no change still no turn signals.
 
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Old Mar 5, 2025 | 12:38 PM
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Originally Posted by D Craig
where is the multi functional switch? I unplugged the trailer harness no change still no turn signals.
Multifunction switch is the actual turn signal switch.

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