Current Classifieds

WTB Manual Transmission Clutch Pedal for '78
Date: 03/29/2019 07:20 am
Looking for a 1977 Ford Pinto Runabout Hatchback
Date: 10/15/2017 10:03 am
WANTED: 1979 Bumper End Caps - Front and Rear
Date: 02/16/2019 10:46 am
Seeking 1971-1973 Rotors
Date: 04/08/2021 12:23 pm
77 Cruising Wagon Front Seats
Date: 04/12/2017 12:37 pm
Pinto interior parts for Cruisen / Rallye wagon
Date: 01/19/2021 03:56 pm
Bumpers
Date: 07/06/2018 04:47 pm
I'm looking for a 78 or older Pinto near Alberta
Date: 08/13/2021 10:39 am
Pinto Watch

Date: 06/22/2019 07:12 pm
Wanted: automatic transmission shifter
Date: 07/21/2017 11:49 am
ford pinto door panels
Date: 03/20/2022 07:51 pm
Pinto brake booster needed
Date: 05/08/2021 09:00 am

Author Topic: Wiring diagram for brake fail switch  (Read 686 times)

0 Members and 1 Guest are viewing this topic.

Offline LongTimeFordMan

  • PCCA VIP
  • Pinto Sr. Member
  • ***
  • Posts: 450
  • FeedBack: +182/-0
  • Gender: Male
  • 1973 Red Pinto Wagon

  • Total Badges: 6
    Badges: (View All)
    Fifth year Anniversary Topic Starter Signature Windows User Linux User Mobile User
Wiring diagram for brake fail switch
« on: March 10, 2017, 09:18:44 PM »
I found this diagram for the brake fail light switch for a ford on a ford forum

Apparently the circuit is wired from the "run" position on the ignition switch, thru the indicator lamp, then to the switch on the "combination valve"  or proportioning" valve which grounds when there is a pressure difference between front and reat brake circuits.

There is also a connection to the starter relay which causes the light to light when the ign switch is in the "start" position.
Red 1973 pinto wagon DD, SoCal desert car, Factory 4 speed, 3.40 gears, Stock engine, 14" rims and tires, 60 K original miles