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  #1  
Old 07-20-2013, 03:36 PM
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No Blinkers????

Hey guys, I have done a ton on research and can not figure out why my blinkers wont work. Heres the break down...

Hazards work all the time
Replaced the flasher relay under the dash.
No blown fuses
Both Brakes lights work with no blinkers switched on
Left Blinker switched on = no left brake light or blinker
Right Blinker switched on = no right brake light or blinker

Everything worked well before I replaced the shift lever/bushings in the steering column. I was having an issue with my truck not shifting out of park and found that previous owner clipped a wire that told the column lock to disengage releasing the lever. When I reconnected the wire everything was good until i put it back together to find I no longer had any blinkers...

Any ideas? Where else should I be looking... What color wires are the blinker wires?
Truck is a 2000 F250 SuperDuty
Let me know. Thanks!
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Old 07-20-2013, 03:50 PM
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Signal wires are light green, white trace for left and white, light blue trace for right.
Do your indicators on the cluster work with signals or hazards?
Check your multifunction switch. With hazards off, you should have a circuit between the light blue wire to the left out right signal.
Make sure you have power on your light blue wire.
2 fuses supply power through flasher relay. 20 A fuse 1 and 10 A fuse 24
Do your trailer signals and brakes work?

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Last edited by Hauser; 07-20-2013 at 04:06 PM.
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Old 07-20-2013, 07:38 PM
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Should the Light blue wire have a constant current if the ignition is on? If so, I have no current to that wire. With the hazards on I am getting intermittent current to the blinker wires. Is there a way to jump the left or right blinkers to rule out the multi switch?


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Old 07-21-2013, 03:58 AM
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No light blue won't be constant 12V since it comes from the flasher relay. Check your multifunction switch. Remove the upper connector from the switch. Should have a closed circuit between light blue pin 44 to light green/white pin 3 and to light green/orange pin 9 when signaling left. Closed circuit between light blue pin 44 to white/light blue pin 2 and to orange/light blue when signaling right.

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Old 07-21-2013, 01:15 PM
sdm sdm is offline
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Don't know if its the same on SDs but might be worth a try. I've got a 2000 f150 and had a similar problem. No signal, no brakes lights, etc., but it was intermittent. The harness from the multifunction switch goes to a plug on top of the column. A bunch of the tabs in that plug had broken and the wires weren't staying connected. The wires need to be 1/2" longer (stupid ford). I bought a new harness at the dealer and replaced the gray plug, didn't use the wires. I just moved one wire at a time to the new plug so I wouldn't get confused. $45 and 30 minutes and it was fixed.
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Old 07-21-2013, 01:37 PM
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Quote:
Originally Posted by Hauser View Post
No light blue won't be constant 12V since it comes from the flasher relay. Check your multifunction switch. Remove the upper connector from the switch. Should have a closed circuit between light blue pin 44 to light green/white pin 3 and to light green/orange pin 9 when signaling left. Closed circuit between light blue pin 44 to white/light blue pin 2 and to orange/light blue when signaling right.

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Ok, so I tested continuity to those wires and everything checks out. So it's not the multi switch. Where should I look next?
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Old 07-21-2013, 01:43 PM
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Check connections like sdm said, if that doesn't do it, answer my other questions from above.
Just to confirm: you have a pulsing power (like hazards) on both light blue wire and white/red wire, when signals or hazards are on

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Last edited by Hauser; 07-21-2013 at 01:46 PM.
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Old 07-21-2013, 02:07 PM
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I don't see any loose plugs. I have pressed all the plugs I can find to make sure hey are fully seated.

Do your indicators on the cluster work with signals or hazards? - indicators work for hazards but not with signals.

Do your trailer signals and brakes work?
- I am not entirely sure the trailer hook up works. I just bought this truck and have yet to tow anything. I am not getting any signal at the plug. I tested the plug with lights on as well as hazards without any readings. The plug is also heavily corroded.
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Old 07-21-2013, 02:15 PM
sdm sdm is offline
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In my case the plug wasn't loose. It was the wires inside the plug.
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Old 07-21-2013, 02:25 PM
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Quote:
Originally Posted by Hauser View Post
Check connections like sdm said, if that doesn't do it, answer my other questions from above.
Just to confirm: you have a pulsing power (like hazards) on both light blue wire and white/red wire, when signals or hazards are on

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I have Pulsing power to both wires only when the hazards are on. If I test the same wires when either blinker is on I get no signal to the light blue wire and a constant 6.8Volts to the white and red (no pulsing)
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