Ford Repair: 97 e250, turn signal switch, brake light switch


Question

Previous no start fault proved to be aftermarket alarm system. REPAIRED

Sorry for my confusion, I still need help re: electrical.

97 E250 Ford, 4.2 liter, auto trans, 178,000 mi.

I hooked rear tail/stop lights to rv system for towing purposes. I connected them to the van lights wiring directly, they worked ok. I then decided that was a bad idea and got separate magnetic lights and used them.

I towed van 200 miles. It was ok a couple of short trips. Then I  experienced an inability to shift into gear after starting engine.

Overcame by moving gear selector to neutral to start, then shift and drive. So far, so good.

Used vehicle for several days by using above tactics, then found I had no brake lights

After finding out about no brake lights, found blown fuse and replaced. I checked the other fuses and found them all to be ok.
Still have both problems.

Checked brake light actuator switch on brake pedal and found no voltage. Disconnected the damn buzzer and kept working and scratching my head. No results, quit for the night.

Charged battery and supplied a live circuit to brake pedal switch. Still no brake lights but the shift interlock would release shifting lever.

I am a retired person who has always done 90% of my own automotive work.
Have been electrician 35 years and heat and a/c contractor 16 years and consider myself very good in the trouble-shooting end of my business. However I am stumped on this one.


I am thanking you in advance for any guidance you can offer

d


Answer
check green wire-may be green and red at brake light switch see if it is broke-brakes lights signal also go through turn signal switch then comes back out bad turn signal switches are common-also if you have a tilt wheel especially pull covers off of column to gain access to t/s switch see if any wires are pulling out of connector as the locks will break and won't hold wires in-good luck.