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What's the most accurate way to check a Ranger's brake light sockets with a ohm meter


I was just reading on a website called JustAnswer.Ford where an Auto Service Technician said that on a 1998 Ford Explorer, the blower motor shares ground 100 with the flasher and that ground 100 is on the inner fender between the battery and the starter solenoid..

He also says that you can test the turn signal multifunction switch by using a jumper wire to connect the light blue wire with circuit 2 (White/Light blue stripe) while the nultifunction switch is unplugged.

Doing this will simulate the right turn signal switch being on, and the right turn signals should start flashing. If the turn signals work in this test, the multifunction switch is bad. (the same test can be done for the left side by connecting the Light Blue to circuit 3--light green/white)
http://www.justanswer.com/ford/1igtt-blower-motor-won-t-turn-signals-won-t-work.html

I should be able to try doing this test procedure on my 90 Ranger, too, being I found the color coding of the turn signal multifunction switch wires that are posted on TheRangerStation..

Are these correct color coded wires for my 90 Ranger, as no model years were listed on TheRangerStation's website that I found this information..
http://www.therangerstation.com/tech_library/WiringByColor.html

Turn Stop / Hazard Lights:

Light Blue Wire - From Turn Signal Flasher To Multi Function Switch To Be Split To Lights
Light Green Wire - From Stop Light Switch To Multi Function Switch To Be Split To Lights
Light Green With Orange Stripe Wire - Left Rear Turn/Stop Lights (Trailer Also)
Light Green With Red Hash Marks Wire - Power To Stop Light Switch
Light Green With White Stripe Wire - Left Front Turn Signal & Indicator
Orange With Light Blue Stripe Wire - Right Rear Turn/Stop Lights (Trailer Also)
Purple With Orange Hash Marks Wire - Hot In Run From Fuse Block To Turn Signal Flasher
Red With White Hash Marks Wire - Hot At All Times To Hazard Flasher
White With Light Blue Stripe Wire - Right Front Turn Signal And Indicator
White With Red Hash Marks Wire - From Hazard Flasher To Multi Function Switch To Be Split To Lights
http://www.therangerstation.com/tech_library/WiringByColor.html
 
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I was just reading on a website called JustAnswer.Ford where an Auto Service Technician said that on a 1998 Ford Explorer, the blower motor shares ground 100 with the flasher and that ground 100 is on the inner fender between the battery and the starter solenoid..

He also says that you can test the turn signal multifunction switch by using a jumper wire to connect the light blue wire with circuit 2 (White/Light blue stripe) while the nultifunction switch is unplugged.

Doing this will simulate the right turn signal switch being on, and the right turn signals should start flashing. If the turn signals work in this test, the multifunction switch is bad. (the same test can be done for the left side by connecting the Light Blue to circuit 3--light green/white)
http://www.justanswer.com/ford/1igtt-blower-motor-won-t-turn-signals-won-t-work.html

I should be able to try doing this test procedure on my 90 Ranger, too, being I found the color coding of the turn signal multifunction switch wires that are posted on TheRangerStation..

Are these correct color coded wires for my 90 Ranger, as no model years were listed on TheRangerStation's website that I found this information..
http://www.therangerstation.com/tech_library/WiringByColor.html

Turn Stop / Hazard Lights:

Light Blue Wire - From Turn Signal Flasher To Multi Function Switch To Be Split To Lights
Light Green Wire - From Stop Light Switch To Multi Function Switch To Be Split To Lights
Light Green With Orange Stripe Wire - Left Rear Turn/Stop Lights (Trailer Also)
Light Green With Red Hash Marks Wire - Power To Stop Light Switch
Light Green With White Stripe Wire - Left Front Turn Signal & Indicator
Orange With Light Blue Stripe Wire - Right Rear Turn/Stop Lights (Trailer Also)
Purple With Orange Hash Marks Wire - Hot In Run From Fuse Block To Turn Signal Flasher
Red With White Hash Marks Wire - Hot At All Times To Hazard Flasher
White With Light Blue Stripe Wire - Right Front Turn Signal And Indicator
White With Red Hash Marks Wire - From Hazard Flasher To Multi Function Switch To Be Split To Lights
http://www.therangerstation.com/tech_library/WiringByColor.html

I tried this test procedure on my 90 Ranger, by taking the turn signal switch off, and used a jumper wire from the Light Blue Wire to connect to the White With Light Blue Stripe Wire, on the turn signal's connector plug.. The Right Front Turn signal flashed properly..

Next, I tested the Right Rear Turn signal light, by connecting a jumper wire from the Light Blue Wire to connect to the Orange With Light Blue Stripe Wire, on the turn signal's connector plug.. The Right Rear Turn signal flashed properly..

Then, I tested the Left Front Turn signal light, by connecting a jumper wire from the Light Blue Wire to connect to the Light Green With White Stripe Wire, on the turn signal's connector plug.. The Left Front Turn signal flashed properly..

Last, I tested the Left Rear Turn signal light, by connecting a jumper wire from the Light Blue Wire to the Light Green With Orange Stripe Wire, on the turn signal's connector plug.. The Left Rear Turn signal flashed properly..

So, being all of my 90 Ranger's individual turn signals worked and flashed properly, as tested, by using a jumper wire on the turn signal's connector plug, as explained..

What would still be causing both of my 90 Ranger's rear turn signals to flash, at the same time, when ever I put my right side turn signal switch on..

When I put a good working turn signal switch in my 90 Ranger from my 89 Ranger, and tried it, before, my 90 Ranger's rear turned signals still flashed, at the same time, when ever I put my right side turn signal switch on..

Is it possible that the turn signal's connector plug that connects to the actual turn signal switch, on my 90 Ranger, could, for some reason, be the cause of both of my Ranger's rear turn signals to flash, at the same time, when using the right side turn signal switch..

My blower motor's heater resistor only has one or two wires that are still left connected to it, as the other wires are broken off..

I wouldn't that could be the cause both of my 90 Ranger's, rear turn signals to flash, at the same time, when using the right side turn signal, could it, as I was reading on a website called JustAnswer.Ford where an Auto Service Technician said that on a 1998 Ford Explorer, the blower motor shares ground 100 with the flasher and that ground 100 is on the inner fender between the battery and the starter solenoid..
 
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Have you tried turning your heater selector switch to off and then see if the heater motor cycles with the flasher still?
 
Have you tried turning your heater selector switch to off and then see if the heater motor cycles with the flasher still?

When the right turn signal switch is on, as the brakes are being applied, I've tried turning the heater selector switch off and the heater motor won't cycle on and off with the the turn signal flasher, when the key is off, like it will when the heater selector switch is put on high, only, as the other wires on the heater's blower motor resistor are broken off, for the lower heater motor speeds..

I've also noticed that when the right turn signal switch is on, as the brakes are being applied, when the key is off, and the heater motor's selector speed switch is off, the right front turn signal light will stay on, along with the brake lights, for as long as the brakes are being applied..

In my previous post I described and explained how I used a jumper wire, on the turn signal switch connector plug, when it was unplugged from the turn signal switch, to test each individual turn signal.. And each one flashed properly, using this test procedure..

Now, I'm thinking about using a jumper wire, at the same turn signal switch connector plug, when it is unplugged from the turn signal switch, and connect a jumper wire to the right front turn signal's female terminal, on the turn signal's connector plug, and jump a wire across to the right rear turn signal's female terminal, on the same connector plug, and then jump it to the light blue wire, which is the hot wire from turn signal relay, when the key is on..

If my both of my 90 Ranger's right turn signals work, at the same time, without causing the both the rear turn signals to flash..

That trouble shooting testing, if it turns out to be successful, as I haven't had a chance to do it, yet, should narrow it down, shouldn't it, to the problem, either, being in the turn signal switch, itself, or some bad loose female terminals inside of the turn signal switch connector plug, that maybe aren't making a good connection with the turn signal switch male terminals..

I read on another website, before, I think it was, maybe, ehow.com, that said if all the emergency flasher lights are working, when activating the emergency flasher, and if each corresponding turn signal indicator light, on the dash, will flash, when using the left, or right turn signal switch..

Which, supposedly, according to them, shows that all the wiring, bulb sockets, bulbs, and relays are all in good working condition, which indicates and proves the vehicle's turn signal switch is malfunctioning and needs to be replaced..

I'm inclined to think the same, except I've already tried, before, a good working turn signal switch in my 90 Ranger, from my 89 Ranger, and it didn't help..

That's why this electrical problem is getting to be so annoying, and frustrating, and hair pulling..lol, being whatever is causing this malfunctioning issue hasn't been resolved, yet..
 
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