Turn signal dosen't work but hazard does

You probably need a turn signal / hazard flasher module located in the under hood fuse box. These go out all the time .
Turn Signal/Hazard Lamps
The IGN E 10-amp fuse in the underhood fuse block supplies battery positive voltage to the turn signal/hazard switch assembly. The FLASH 25-amp fuse in the instrument panel (I/P) fuse block supplies battery positive voltage to the turn signal/flasher module and ground is supplied at G200. When the turn signal switch is placed in either the LEFT or RIGHT position, a voltage signal is completed from the turn signal switch to the turn sign/flasher module. When the hazard flasher switch is activated, a ground signal is completed from the turn signal/hazard switch to the turn sign/flasher module. The turn sign/flasher module then sends an on-off voltage signal through the LT TRLR, RT TRLR, LT TURN or RT TURN 10-amp fuses in the I/P fuse block to the appropriate turn signal or to all 4 fuses for hazard operation. The instrument panel cluster (IPC) indicators receive voltage from the LT TURN and RT TURN fuses as well as the driver door module (DDM)/passenger door module (PDM) for the mirror turn signals. The DDM/PDM has no function or control of the mirror turn signals other that a pass through connection for the circuits. The audio chime is also activated when the turn signals are ON. When the hazard switch is pressed, all turn signal lamps will flash including both IPC turn indicators. The front turn signals are grounded at G100. The rear turn signals are grounded at G401. The Mirror turn signals are grounded by the DDM/PDM.

Brake lights /rear hazard lights not working - Ford Truck ...

www.ford-trucks.com > ... > 1967 - 1972 F-100 & Larger F-Series Trucks
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The hazard switch gets power from the horn fuse which is hot all the time, and from the turn signal fuse which is hot when the key switch is on. The turn signal switch gets power from the hazard switch and both use the same flasher.
So if the turn signals work but the hazard switch does not power the lights, and both fuses have power, I would say the problem is inside the hazard switch.

renew the hazard warning light switch as for the reverse lights then renew the switch in the gearbox

I assume you've checked the Fuses :p Obviously that hasnt worked and the bulbs and lights haven't worked either... SO try this????
Open the driver's side door and examine the end of the dash for an access panel. Behind the access panel are fuses and flashers. There are two flashers inside the access panel for controlling the turn signal and the hazard lights. You can distinguish them apart from each other by turning on the hazards or the turn signal and feeling for the clicking. If you turned on the hazards, then the flasher that is clicking is the hazard flasher.
Remove the turn signal flasher from the dash and reinstall the new flasher into the vacated slot in the dash. Close the access panel and start thetruck . Check the turn signals for proper operation and make sure the hazards work as well.


Please let me know how it goes

if your hazard lights stay on, you may have a problem with the hazard switch on your stearing collum. try moving it back & forth several times, eg. on, off, on, off always ending @ off & see if that works. they do get sticky @ times. your brake lights will work but your turn signals won't work properly with the hazard switch turned on. let me know if problem persists & will see if i can help you more. good luck.

I can't see it as being the flasher unit as it is used for both hazard & tuns signal lights,it is more likely a wiring problem or the turn signal switch that is faulty,check the wiring to make sure that there are no wires loose or connectors unplugged.....hope this helps......cheers.

As for the brake lights push brake pedal down while pushing on and wiggling the hazard switch.If the brake lights come on then replace the multi-function switch.

usually the one flasher serves both turn signal & hazard flasher, if either one isn't working you may have other problems.....hope this helps.....cheers.