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View Full Version : 2003 f650 turn signal/hazard problem


txastuff79
01-03-2011, 09:10 AM
Got a question. Anyone have a wire schematic for a 2003 f650 or even a 2003 f350 turn signal/hazrad light stystem? I have from what I can tell a good relay. Turn signals work but no hazard. You can hear the relay click when pushing the hazard switch but no operation. I took the switch apart but nothing seemd burnt or out of place. Please help if you can.

Need to know what color wires and which ones to test out of the master switch for the hazard light. Thanks

txastuff79
01-03-2011, 07:15 PM
This is just info. I took over this service truck 3 weeks ago and have been fixing a ton of stuff that has been neglected.

In the process of diagnosing no hazards, I realized I didnt have right rear brake light or right rear turn signal. In the long run, I realized I had a bad flasher relay AND multifunction switch. All problems cured with both repairs/both items replaced. Just in case anyone was interested... I thought I would post the fix.