Troubleshooting my electrical issues., My first problem was blinking red light on the dash for brakes Options

[vin man]

Edit: Renamed the thread because what started out as one electrical problem has led to others and I'm hoping to capture all the information in this one thread.

Initial Problem:

When I turn on the 72, the red light on the dash (in the top part of the gauge on the left side of the dash) blinks and won't stop. I've made sure the e-brake is all the way off. I'm wondering where is the switch that controls this light?

I've read that when the brake master cylinder is replaced, there is a switch on the MC that needs to be reset. I used a MC from Rock Auto and there is not reset switch button. Only the electrical switch that activates the brake lights.

I have a brown wire that is connected to nothing in the area of the e-brake handle. I've tried grounding it but the light still blinks on the dash.

Any advice would be appreciated.


Click here for video of the blinking light: Blinking red light

(IMG:http://www.914world.com/bbs2/uploads_offsite/i304.photobucket.com-11380-1486858110.1.jpg)

Master cylinder:
(IMG:http://www.914world.com/bbs2/uploads_offsite/i304.photobucket.com-11380-1486858537.1.jpg)
(IMG:http://www.914world.com/bbs2/uploads_offsite/i304.photobucket.com-11380-1486858538.2.jpg)

[mgphoto]

There are 2 diodes behind the combo gauge, the brake light uses 2 separate circuits, the diodes prevent the current flowing in the wrong direction.
This is according to the factory wiring diagrams.
I have the same problem, just pull the wires to the switch on the master cylinder, tape them up, flashing stops but brake warning light will not light as the pedal goes to the floor, the light will not help in that situation, as you already know the pedal is going to the floor!
PS: get a 911 flasher, ground the common from the flasher and watch your individual turn signal indicators flash on the gauge in the direction you are turning.
Mike