my turnsignals flas when i hit the brakes

[bobbie58]

my turnsignals or running lamps come on when I hit my brake pedal I replaced the brake light switch on the pedal and the headlight switch that didn't stop it, could it be a ground somewhere, its a 2000 ranger xlt

 

[RonD]

First stop on my list would be trailer light connector, loads of DIY butchering done back there

Yes, could be Ground issue, any light that comes on means power is passing thru the filament, so if one circuit has a bad ground it will use another ground that may pass thru another bulb.
But that bulb would be dimmer, not full ON brightness

Multi-function switch has both turn and brake light power

Turn on Parking lights and see if other lights are "glowing"

 

[bobbie58]

driving with the headlights off the brake lights work fine but when the headlights are on the brakelights don't seem to work that's when the turnsignal lights work

 

[Dangerrangers]

What RonD said that's where my problem was , in the trailer wiring. Hope u find it , it can be frustrating.

 

[bobbie58]

I replaced the multi function switch and the brake switch check all the fuses replaced the bulbs and just finished replacing the radiator core support and didn't see any ground wire on the inner fender wells since there plastic

 

[85_Ranger4x4]

For what little it is worth on my '85 the tail lights ground to the dash support by the fuse panel, there is no ground on the outside of the cab for the back end of the truck. Tails, brake/signal, backups, and fuel gauge all ground to the same wire.

'01 is probably different but that is how they did it in '85. If you get on ebay and find an EVTM they lay stuff out pretty decent so you know what you are looking for.

For my debacle I started at the back and ran a jumper ground wire straight to the negative post on the battery. I would unpin the ground from the first connector in the rear lamp harness I found and run it to my known "good" ground. When it checked out I would reassemble that one and move forward to the next one and keep working my way to the front until I found the problem.

 

[reyes1478]

my turnsignals or running lamps come on when I hit my brake pedal I replaced the brake light switch on the pedal and the headlight switch that didn't stop it, could it be a ground somewhere, its a 2000 ranger xlt

I

 

[reyes1478]

I found my short here at the Trailer Connector wires. Problem gone.

 

[RonD]

Yes, that looks like its seen better days, lol

Thanks for the update and FIX