Thanks for reading this. I've used the search function and learned a lot about brake lights.
4/72 FJ40. Stock as a rock. No KC lights, electric winch, radio, weird extra wiring.
When I push on the brake pedal, the front blinker lights get brighter; they act like brake lights. These are the lights on top of the fenders, left and right. Photos attached below.
No discernable change in tail lights (the ones that are supposed to be the brake lights) when I hit the brake pedal.
Here are some FAQs.
Flasher relay box thingy is new oem.
Hazards work. (rebuilt the switch) Switch is a *little* wonky; sometimes it needs a little wiggle to make the blinkers work.
Blinkers work, left and right, as do the blinker indicator lights on the dash. (new OEM blinker switch and arm.)
Headlights (bright and low) work, including floor switch, NEW oem headlight switch.
New brake switch (the one behind the brake pedal) OEM.
Running lights (the side corner ones) all work; orange in front and red in back. Cleaned the grounds and added star washers and dielectric grease.
Tail lights (new oem) all work.
The new brake light switch only plugs into the harness one way. I feel like I triple checked the part number and the new switch looks/acts like the old switch.
This truck has the dual master cylinder with the switches for the brake warning light.
Fuse box is new from @Racer65
Does this truck have a parking light brake switch? I mean the one that attaches to the dash behind the parking brake handle. I see them on some parts websites but don't see it on the wiring diagram.
thx,
4/72 FJ40. Stock as a rock. No KC lights, electric winch, radio, weird extra wiring.
When I push on the brake pedal, the front blinker lights get brighter; they act like brake lights. These are the lights on top of the fenders, left and right. Photos attached below.
No discernable change in tail lights (the ones that are supposed to be the brake lights) when I hit the brake pedal.
Here are some FAQs.
Flasher relay box thingy is new oem.
Hazards work. (rebuilt the switch) Switch is a *little* wonky; sometimes it needs a little wiggle to make the blinkers work.
Blinkers work, left and right, as do the blinker indicator lights on the dash. (new OEM blinker switch and arm.)
Headlights (bright and low) work, including floor switch, NEW oem headlight switch.
New brake switch (the one behind the brake pedal) OEM.
Running lights (the side corner ones) all work; orange in front and red in back. Cleaned the grounds and added star washers and dielectric grease.
Tail lights (new oem) all work.
The new brake light switch only plugs into the harness one way. I feel like I triple checked the part number and the new switch looks/acts like the old switch.
This truck has the dual master cylinder with the switches for the brake warning light.
Fuse box is new from @Racer65
Does this truck have a parking light brake switch? I mean the one that attaches to the dash behind the parking brake handle. I see them on some parts websites but don't see it on the wiring diagram.
thx,
Last edited: