My turn signals do not work. I have power from my flasher relay to my turn signal switch. At the switch there are 3 wires I assume one is direct power from the battery and the other two are for each respective turn signal. I measured 12V to the middle wire, but no voltage is showing in any switch position for the other two. I have connected a wire directly from my battery to the wires which gave no voltage reading and sure enough the turn signals light up, but do not flash which i would not expect them to since i have basicly bypassed the flasher relay. Do i need a new switch?

help here

https://www.google.com/search?q=2004+Chevy+classic+flasher+relay+location

And just for information OP 'Anonymous', Jeff Armer, the guy you dissed is a vehicle electronics wizard, a professional who fixes problems like your 5 days a week every week.


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There are a few possible reasons why your turn signal light is not working while your brake and tail lights are functioning properly:

1. Blown fuse: The turn signal lights are connected to a different fuse than the brake and tail lights. The fuse for the turn signals may have blown and needs to be replaced.
2. Turn signal switch: The turn signal switch, located on the steering column, could be malfunctioning and needs to be replaced.
3. Wiring issue: A wiring issue, such as a broken wire or loose connection, could be preventing power from reaching the turn signal lights.
4. Flasher relay: The flasher relay is responsible for controlling the turn signal lights. A faulty flasher relay could be preventing the turn signals from working.
5. Signal/light module: Some cars have a signal/light module that controls the turn signals, this could be faulty and need to be replaced.

images for Turn signal harness 2002 ford ranger

Ford explorer turn sinal problem got fixed - YouTube

? 3:23
www.youtube.com/watch?v=I2SUGIvYAWc
Jul 12, 2013 - Uploaded by Raybob216 My 04 exployer left turn signal and break light not working fix loose wires behind ... bulb and come to find out wire had popped out of the harness. ... How to Change Ford Explorer 2002 Flasher Relay for Hyper Flasher Relay ... How To Install Replace Turn Signal Wiper High Beam Switch Ford Ranger 95-98 ...

try to test turn signal switch, which its the live wire is not sending signal to the flasher.

you may have a bad flasher relay. its also known as a hazard relay, or turn signal flasher.

okay...the signal fuse powers horns, dash indicator lights (neutral, OD etc)
so all that is working fine?

the other common items are the wiring to the bulbs and the bulbs....doubt all 4 failed at once.

Looking at my wiring diagram, it looks like the system was designed so the hazard circuit and the turn signal circuit cannot be used at the same time, It appears that the common component to accomplish this is the Hazard Relay (not Hazard Flasher Relay). Basically the power to your Turn Signal flasher is fed from the Hazard Relay if your Hazard Switch is off, and when the Hazard Switch is ON, the Hazard Relay switches and cuts off power supply to Turn Signal flasher, and feeds the 4 turn signals for 4 way flashing.
So I suspect possibly either your connector at the Hazard Relay is loose, or the relay has failed
I'll try to find location for you, looking for a 6 wire connector with the following colours
Brown/White, Brown, Brown/Red, Brown/Green, Chocolate, Dark Green.

It may be under the right side cover....there is one flasher relay there...but will do some research.
You realize the Venture has a 5 year warranty?

There are two possibilities:-- 1) The flasher relay or 2) The turn signal switch.
check flasher relay,but most likely the fault is the turn signal switch . ---------- The turn signal / hazard flasher relay is located behind the dash, right of the steering column. -------- Since the hazards do work this eliminates a faulty relay as both the hazards and turn signals use the same relay to function. This leads to either faulty wiring at the multifunction (turn signal) switch or a faulty switch itself.It is always a good idea to check the wiring before purchasing the switch.Starting at the switch its the lever.And the switch wiring gets connected to relay. Test it with a meter to see if it is getting power when it is supposed to (turned ON ). If it is then wiring is OK and switch is bad. If it's not getting power then there is a open circuit somewhere in between.so its the wiring problem. ------------ this will help.Thanks.Helpmech.

First of all check the Flasher relay.The other to check is the ground wiring.Is the wiring's proper or getting short.The flasher is clicking in off position this indicates that its actually turning off.the flasher is still receiving any current to function. so the wiring's needs to be checked and confirmed.The wiring procedure  in 1999 GMC sierra  is as follows:--
The circuit is fairly simple: 12 V power from the ignition relay is brought to the Hazard switch. In the Off position, the 12 v is routed through the Hazard switch to one pin of the flasher. Another pin of the flasher goes to ground. The third pin goes to the turn signal switch, where it is connected to either the left or right signal light circuits. The other side of each bulb is connected to ground. When either the turn signal or Hazard switch is turned on, the current through the flasher causes it open and close its internal contact in the 12 V line, thereby turning the signal lights on and off. So, for the flasher to continue to click when the ignition switch is at ON/OFF (assuming there is no clicking when it is OFF), there must be a connection from the 12 V supply through the flasher and the turn switch. It is possible that there is a wire between the flasher and the turn signal switch that is worn and contacting ground.
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The flasher unit is made to flash 12 volts on and off only. The turn signal switch is what is used to direct that flashing 12 volts to the proper signals.
The flasher unit:
First wire is a ground. Middle wire is the send to the turn signal switch. The last wire is 12v positive (with key on). When you flip the switch to the left, it makes a connection between the left turn signals and the middle wire of the flasher unit. The flasher unit then "sees' a load and starts flashing 12v on and off at the middle wire. When you flip the switch right, it makes the connection between the right signals and the middle wire of the flasher unit. Again, the flasher unit "sees" a load and starts flashing.

Test the circuit board wires on the back side of your taillights where the bulbs go in to see if power is going there with the blinker on, if yes replace the circuit board (quite common with these trucks). If there is no power back there check your flasher relays for each turn signal, assuming they dont click off and on when you tip the turn lever. if all else fails, head for the multifunction switch behind your steering wheel inside the column that your turn signal/wiper/cruise control lever is connected to.