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FORD BRONCO
-> BRAKE SYSTEM; 4WABS, RABS, Self Test...
-> Brake Shift Interlock, Inadvertent Disablement TSB 99-13-9 for 94-96
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This is a Ford Bronco, Truck & Van Technical & Parts LINKS site developed by the MIESK5 Family & is not affiliated with the Ford Motor Co. in any manner.
Although we initially developed this site for 78-96 Big Broncos, information in many Links also applies to F, E Series & Cars. UPDATE; all Links via web.archive may be down; Copy orig. URL & go to http://replay.waybackmachine.org/ to search for the new archived copy
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Brake Shift Interlock Connector Location, Behind Instrument Panel Diagram in a 96, Page 2
Source: by Ford via Chilton
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Brake Shift Interlock Inspection in a 96; from 1996 F-150, F-250, F-350 F-Super Duty and Bronco Workshop Manual
Source: by Ford via thedieselstop.com
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Brake Shift Interlock Overview & Location in Parts Break-Out Diagram in 92-96
Source: by Ford via miesk5 at broncolinks.com/gallery
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Brake Shift Interlock Overview in a 96; from 1996 F-150, F-250, F-350 F-Super Duty & Bronco Workshop Manual; "...All vehicles are equipped with a brake shift interlock system. The brake shift interlock system prevents the shifting from PARK (the key is in run) unless the service brake is depressed. The brake shift interlock system consists of a brake shift lock actuator mounted at the base of the steering column. If the key is in run, the brake shift lock actuator continually runs unless the brake is depressed..."
Source: by Ford via thedieselstop.com
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Brake Shift Interlock Removal & Installation in a 96; from 1996 F-150, F-250, F-350 F-Super Duty and Bronco Workshop Manual
Source: by Ford via thedieselstop.com
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Brake Shift Interlock Removal & Installation in a 96; from 1996 F-150, F-250, F-350 F-Super Duty and Bronco Workshop Manual; "...NOTE: Brake-shift interlock (BSI) hardware provided by FMC may not have been activated by the final stage manufacturer due to modification or omission of the center high-mount stoplamp (CHMSL). A service kit is being provided as an alternate method to activate the BSI if the vehicle was not equipped with a CHMSL by the final stage manufacturer or if the Ford-installed CHMSL was modified or removed by the final stage manufacturer. Removal; Remove steering column. Refer to Section 11-04. Unclip wire terminal from solenoid. Remove insert plate and solenoid by removing three retaining screws. Pry off clip. Installation; NOTE: The clip which retains the solenoid to the insert plate should not be replaced for service. The clip's sole purpose is an assembly aid for the assembly plant. Position insert plate/solenoid assembly to the steering column and tighten the retaining screws. Install the steering column in the vehicle. Refer to Section 11-04..."
Source: by Ford via thedieselstop.com
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Brake Shift Interlock Troubleshooting & Overview Compendium in 92-96
Source: by Ford via miesk5 at FSB
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Brake Shift Interlock Wiring Diagram in a 92 from Ford EVTM
Source: by Ford via Seabronc (Rosie, Fred W) at Ford Bronco Zone Forums
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Brake Shift Interlock Wiring Diagram in a 96; from 1996 F-150, F-250, F-350 F-Super Duty and Bronco Workshop Manual
Source: by Ford via thedieselstop.com
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Brake Shift Interlock, Inadvertent Disablement TSB 99-13-9 for 94-96; "...Corporate, municipal, or police fleets may have had their 1992-1999 Ford Motor Company vehicle modified to flash the brake lamps whenever the police lights or other aftermarket lights are turned on, which may disable the brake shift interlock. The brake shift interlock is a feature that prevents the vehicle from being shifted from Park unless the brake pedal is depressed. Disabling of the brake shift interlock feature may enable the operator to inadvertently apply the accelerator instead of the brake pedal and simultaneously shift from Park to a Drive gear. ACTION: As appropriate, dealers should advise owners (including corporate, municipal, and police agencies) that any vehicle that has been modified with a connection to the brake circuit, or that electrically interfaces with the brake lamps in any manner, should be disconnected IMMEDIATELY and the emergency lighting system should be modified in a manner that does not interfere with normal vehicle operation or the brake shift interlock. In addition, if the high-mount stoplamp flashes when the police lights are on, the modification does not conform with Federal Motor Vehicle Safety Standard (FMVSS) 108 which requires that the high-mount stoplamp only illuminate when applying the brakes. Installation of warning lights should only be performed with a completely separate electrical system, without connection to any existing vehicle wiring. Connection of aftermarket electrical equipment into the brake lamp circuit or any other circuit which is connected to the Powertrain Control Module (PCM), anti-lock brake computer, air bag system, or any other vehicle system, will cause vehicle malfunction..."
Source: by Ford via miesk5 at MIESK5's BIG BRONCO LINKS
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Brake Shift Interlock, Inadvertent Disablement TSB 99-13-9 for 94-96; "...Corporate, municipal, or police fleets may have had their 1992-1999 Ford Motor Company vehicle modified to flash the brake lamps whenever the police lights or other aftermarket lights are turned on, which may disable the brake shift interlock. The brake shift interlock is a feature that prevents the vehicle from being shifted from Park unless the brake pedal is depressed. Disabling of the brake shift interlock feature may enable the operator to inadvertently apply the accelerator instead of the brake pedal and simultaneously shift from Park to a Drive gear. ACTION: As appropriate, dealers should advise owners (including corporate, municipal, and police agencies) that any vehicle that has been modified with a connection to the brake circuit, or that electrically interfaces with the brake lamps in any manner, should be disconnected IMMEDIATELY and the emergency lighting system should be modified in a manner that does not interfere with normal vehicle operation or the brake shift interlock. In addition, if the high-mount stoplamp flashes when the police lights are on, the modification does not conform with Federal Motor Vehicle Safety Standard (FMVSS) 108 which requires that the high-mount stoplamp only illuminate when applying the brakes. Installation of warning lights should only be performed with a completely separate electrical system, without connection to any existing vehicle wiring. Connection of aftermarket electrical equipment into the brake lamp circuit or any other circuit which is connected to the Powertrain Control Module (PCM), anti-lock brake computer, air bag system, or any other vehicle system, will cause vehicle malfunction..."
Source: by Ford via performanceprobe.com
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Brake Shift Interlock; "These (and many other) vehicles are equipped with a Brake/Shifter interlock for safety. This system requires the driver to hold the brake depressed before the shift lever can be moved from the Park position. There is an actuator (solenoid) on the left side of the steering column under the dash that disengages the shifter lock when the brake is depressed. In the event this system malfunctions, the shift lever may be stuck in the Park position. One cause of this complaint may be due to a faulty brake switch circuit. If you experience this complaint always check for blown fuses and brake light switch operation before proceeding with other work."
Source: by ATC-Distribution Group Inc. atcdg.com via web.archive
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Symbols in Wiring Diagrams
Source: by Steve83 (Steve, That dirty old truck) at SuperMotors.net
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