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1996 Bronco Eddie Bauer 5.0 automatic w/ the rust package
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15 Posts
Discussion Starter #1
good morning everyone,

So this morning I got in the ole Bronco and was gunna go to the gas station but my gear selctor won't shift from park to reverse, I have an automatic transmission with the 5.0 engine at 305k. Is this caused by low transmission oil? Or possibly damaged gears?
 

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Super Moderator
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24,974 Posts
Yo Willy,

If Shift Lever is Stuck in Park (pic is gone); "...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.org

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

In event you have Erratic/Hard Shifting Due to Short Circuits, Common Locations TSB 95-02-11 in 94-95 Bronco & Trucks (Also happened in our 96 w/E4OD); Miesk5 NOTE; See: C. & D. Erratic/Hard Shifting
Source: by Ford via Chilton
 

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Registered
1996 Bronco Eddie Bauer 5.0 automatic w/ the rust package
Joined
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15 Posts
Discussion Starter #3
Yo Willy,

If Shift Lever is Stuck in Park (pic is gone); "...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.org

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

In event you have Erratic/Hard Shifting Due to Short Circuits, Common Locations TSB 95-02-11 in 94-95 Bronco & Trucks (Also happened in our 96 w/E4OD); Miesk5 NOTE; See: C. & D. Erratic/Hard Shifting
Source: by Ford via Chilton
Ok so found out my fuse was blown, but now the fuse continues it blow after installing a new one. Would this be caused by the 3rd brake light being out? Or possible wiring issues with the brake lights?
 

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Super Moderator
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24,974 Posts
Yo Willy,
Is your 3rd brake light inoperative?
If so;
PINPOINT TEST F: STOPLAMPS/HI-MOUNT STOPLAMPS INOPERATIVE
F1 CHECK SUPPLY TO STOPLAMPS
  • With Rotunda 73 Digital Multimeter 105-R0051 or equivalent connected to a known good ground, check for voltage on Circuit 10 (LG/R) at stoplight switch.
Is battery voltage present?
YesNo
GO to F4.GO to F2.
F2 CHECK SUPPLY CIRCUIT TO STOPLIGHT SWITCH
  • Using Rotunda 73 Digital Multimeter 105-R0051 or equivalent connected to a known good ground, check Circuit 383 (R/W)/10 (LG/R) at output side of I/P fuse panel fuse 13.
Is battery voltage present?
YesNo
REPLACE fuse or SERVICE Circuit 383 (R/W)/10 (LG/R) for open circuit. RESTORE vehicle. RETEST system.GO to F3.
F3 CHECK CIRCUIT 383 (R/W)/10 (LG/R) FOR SHORT
  • Remove IP fuse panel fuse 13.
  • Using Rotunda 73 Digital Multimeter 105-R0051 or equivalent connected to a known good ground, connect second lead to output side of IP fuse panel fuse 13.
  • Measure resistance.
Is resistance 5 ohms or less?
YesNo
SERVICE Circuit 383 (R/W)/10 (LG/R) for short to ground. RESTORE vehicle. RETEST system.REPLACE damaged fuse. RESTORE vehicle. RETEST system.
F4 CHECK STOPLIGHT SWITCH OUTPUT
  • Depress stoplight switch and hold.
  • Using a voltmeter connected to a known good ground, check Circuit 511 (LG) at stoplight switch.
Is battery voltage present?
YesNo
GO to F5.REPLACE damaged stoplight switch. RESTORE vehicle. RETEST system.
F5 CHECK STOPLIGHT SWITCH INPUT TO MULTI-FUNCTION SWITCH
  • Gain access to the multi-function switch. With Rotunda 73 Digital Multimeter 105-R0051 or equivalent connected to a known good ground, connect other end to Pin C1-9, Circuit 511 (LG) at the multi-function switch connector.
  • Apply brake pedal, and hold.
Is battery voltage present?
YesNo
GO to F6.SERVICE Circuit 511 (LG) for an open. RESTORE vehicle. RETEST system.
F6 CHECK MULTI-FUNCTION SWITCH OUTPUT TO STOPLAMPS
  • Using Rotunda 73 Digital Multimeter 105-R0051 or equivalent connected to a known good ground, and brake pedal still applied, check Circuit 9 (LG/O) at Pin C1-10 of multi-function switch connector, or Circuit 5 (O/LB) at Pin C1-2 of multi-function switch connector.
Is battery voltage present?
YesNo
LEAVE brake pedal applied. GO to F7.REPLACE damaged multi-function switch. RESTORE vehicle. RETEST system.
F7 CHECK STOPLAMP SUPPLY AT BULB
  • Gain access to either stoplamp connector. Disconnect stoplamp connector.
  • Using Rotunda 73 Digital Multimeter 105-R0051 or equivalent connected to a known good ground, check Circuit 9 (LG/O) and Circuit 5 (O/LB) for voltage.
Is battery voltage present?
YesNo
GO to F8.SERVICE Circuit 9 (LG/O) or Circuit 5 (O/LB) for open circuit. RESTORE vehicle. RETEST system.
F8 CHECK STOPLAMPS GROUND
  • Unapply brake pedal.
  • Using Rotunda 73 Digital Multimeter 105-R0051 or equivalent connected to a known good ground, connect second lead to Circuit 57 (BK) at either stoplamp bulb connector.
  • Measure resistance.
Is resistance 5 ohms or less?
YesNo
REPLACE damaged miniature bulb. RESTORE vehicle. RETEST system. GO to F9.SERVICE Circuit 57 (BK) for open circuit. RESTORE vehicle. RETEST system.
F9 CHECK SUPPLY TO REAR HI-MOUNT LAMP
  • Remove rear hi-mount lamp as outlined.
  • Connect one lead of a voltmeter to a known good ground, connect other end to Circuit 511 (LG) at stoplight switch connector.
  • Apply brake pedal.
Did test lamp illuminate?
YesNo
RELEASE brake pedal. GO to F10.SERVICE Circuit 511 (LB) for open circuit. RESTORE vehicle. RETEST system.
F10 CHECK REAR HIGH-MOUNT LAMP GROUND
  • Connect Rotunda 73 Digital Multimeter 105-R0051 or equivalent to a known good ground. Connect second lead to Circuit 57 (BK) at hi-mount stoplamp connector.
  • Measure resistance.
Is resistance 5 ohms or less?
YesNo
REPLACE damaged stoplamp miniature bulb. RESTORE vehicle. RETEST system.SERVICE Circuit 57 (BK) for open circuit. RESTORE vehicle. RETEST system.
 

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Registered
1996 Bronco Eddie Bauer 5.0 automatic w/ the rust package
Joined
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15 Posts
Discussion Starter #5
Ok, so all 3 bulbs in the 3rd brake light were out, with 2 bulbs pretty corroded inside and out. That seemed to be causing the short and my fuse isn't blowing anymorw, but now my turn signals don't work in the front or rear.
 

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Super Moderator
Joined
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24,974 Posts
Yo Willy,
162316

By
Fuse Block Diagram in a 96
Source: by Roadkill (The Beast)
□○□
Multi-Function Switch (MFS) Failure Causes; "...Mechanical components wear out or electrical connections are faulty; If the switch assembly is not operating properly, turn signals, hazard warning lamps, windshield wipers/washers and the headlamp beam selection may not operate properly. Related Components to Check; The switch itself, the electrical connections to the switch and the connections to each of the affected components (items such as turn signals, wipers, etc.)..."
Source: by MOTORCRAFT®

➡Multi-Function Switch (MFS) Cleaning; "Just hit hazard switch in and out for about a minture, which cleans the MFS contacts and presto"
via cawright3 at FSB
Multi-Function Switch (MFS) Cleaning & Internal pics in a 2001 Explorer; Miesk5 NOTE, as John wrote, it should be electrically & functionally identical to our years; "...Wipe with a rag, hit with contact cleaner and an old toothbrush to clean. Regrease with dielectric grease. Save ~$80 for a new switch that will only last ~4 years..."
Source: by Electrohacker


TURN SIGNAL LAMPS/HAZARD FLASHER LAMPS
ConditionPossible SourceAction
  • All Turn Signal/Hazard Flasher Lamps Inoperative
  • Open circuitry.
  • Damaged multi-function switch.
  • Damaged indicator flasher.
  • Blown fuse.
J1 CHECK FUSES
  • Check turn/hazard flasher fuse 7 and fuse 13 for continuity.
Are fuses good?
YesNo
GO to J2.REPLACE bad fuse(s). RESTORE vehicle. RETEST system.
J2 CHECK VOLTAGE FEED SIDE FUSE 7
  • Key in RUN.
  • Check for voltage at turn flasher fuse 7, Circuit 687 (GY/Y), feed side.
Is battery voltage present?
YesNo
GO to J3.CHECK Circuit 687 (GY/Y) for continuity between ignition switch and IP fuse panel. REFER to Section 11-05 for testing of ignition switch.
J3 CHECK VOLTAGE FEED SIDE FUSE 13
  • Key OFF.
  • Check for voltage at hazard flasher fuse 13, Circuit 38 (BK/O), feed side.
Is battery voltage present?
YesNo
GO to J5.GO to J4.
J4 CHECK CONTINUITY OF CIRCUIT 38 (BK/O)
  • Disconnect battery ground cable.
  • Check for continuity on Circuit 38 (BK/O) between IP fuse panel fuse 13 and power distribution box fuse 13.
Is continuity present?
YesNo
CHECK fuse 13 and feed wiring in power distribution box. RESTORE vehicle. RETEST system.REPAIR open in Circuit 38 (BK/O). RESTORE vehicle. RETEST system.
J5 CHECK TURN/HAZARD FLASHER FEEDS
  • Disconnect battery ground cable.
  • Check continuity of Circuit 8 (O/Y) between IP fuse panel fuse 7 and turn flasher, Circuit 383 (R/W) between IP fuse panel fuse 13 and hazard flasher.
Is continuity present?
YesNo
GO to J6.REPAIR open in noncontinuous circuit(s). RESTORE vehicle. RETEST system.
J6 CHECK INDICATOR FLASHER
  • Reconnect battery ground cable.
  • Restore vehicle.
  • Substitute a known good indicator flasher.
Do turn/hazard lamps perform correctly?
YesNo
RESTORE vehicle. Problem corrected.GO to J7.
J7 CHECK MULTI-FUNCTION SWITCH FEEDS
  • Disconnect battery ground cable.
  • Check continuity of Circuit 44 (LB) between turn flasher and multi-function switch Pin C1-1, Circuit 385 (R/W) between hazard flasher and multi-function switch Pin C1-4.
Is continuity present?
YesNo
GO to J8.REPAIR open in noncontinuous circuit(s). RESTORE vehicle. RETEST system.
J8 CHECK MULTI-FUNCTION SWITCH TURN CONTINUITY
  • Disconnect battery ground cable.
  • Remove multi-function switch. Refer to Section 11-05 for removal procedure.
  • Actuate multi-function switch to the left and right turn positions and check continuity between Pin C1-1, Circuit 44 (LB) and:
    • LEFT Pin C1-8, Circuit 3 (LG/W)
    • Pin C1-10, Circuit 9 (LG/O)
    • RIGHT Pin C1-5, Circuit 2 (W/LB)
    • Pin C1-2, Circuit 5 (O/LB)
Is continuity present in all cases?
YesNo
GO to J9.REPLACE damaged multi-function switch. REFER to Section 11-05. RESTORE vehicle. RETEST system.
J9 CHECK MULTI-FUNCTION SWITCH HAZARD CONTINUITY
  • Disconnect battery ground cable.
  • Remove multi-function switch. Refer to Section 11-05 for removal procedure.
  • Actuate multi-function switch to the hazard position and check continuity between Pin C1-4, Circuit 385 (R/W) and:
    • Pin C1-2, Circuit 5 (O/LB)
    • Pin C1-10, Circuit 9 (LG/O)
    • Pin C1-5, Circuit 2 (W/LB)
    • Pin C1-8, Circuit 3 (LG/W)
Is continuity present in all cases?
YesNo
GO to J10.REPLACE damaged multi-function switch. REFER to Section 11-05. RESTORE vehicle. RETEST system.
J10 CHECK LAMP FEED WIRING
  • Disconnect battery ground cable.
  • Install multi-function switch. Refer to Section 11-05.
  • Check continuity between multi-function switch circuit feed specified and the corresponding exterior lamp:
    • Circuit 3 (LG/W) Left Front Turn Lamp
    • Circuit 2 (W/LB) Right Front Turn Lamp
    • Circuit 9 (LG/O) Left Rear Stop/Turn Lamp
    • Circuit 5 (O/LB) Right Rear Stop/Turn Lamp
Is continuity present in all cases?
YesNo
GO to J11.REPAIR open in noncontinuous circuit. RESTORE vehicle. RETEST system.
J11 CHECK MINIATURE BULBS
  • Remove miniature bulbs.
  • Check continuity of front turn lamps and rear stop/turn lamps.
Is continuity present?
YesNo
GO to J12.REPLACE damaged miniature bulb. RESTORE vehicle. RETEST system.
J12 CHECK LAMP GROUNDS
  • Disconnect battery ground cable.
  • Check continuity of Circuit 57 (BK) at each front turn lamp and each rear stop/turn lamp with a known good ground.
Is continuity present?
YesNo
System OK.REPAIR open in noncontinuous circuit. RESTORE vehicle. RETEST system.
 

·
Registered
1996 Bronco Eddie Bauer 5.0 automatic w/ the rust package
Joined
·
15 Posts
Discussion Starter #7
Yo Willy,
View attachment 162316
By
Fuse Block Diagram in a 96
Source: by Roadkill (The Beast)
□○□
Multi-Function Switch (MFS) Failure Causes; "...Mechanical components wear out or electrical connections are faulty; If the switch assembly is not operating properly, turn signals, hazard warning lamps, windshield wipers/washers and the headlamp beam selection may not operate properly. Related Components to Check; The switch itself, the electrical connections to the switch and the connections to each of the affected components (items such as turn signals, wipers, etc.)..."
Source: by MOTORCRAFT®

➡Multi-Function Switch (MFS) Cleaning; "Just hit hazard switch in and out for about a minture, which cleans the MFS contacts and presto"
via cawright3 at FSB
Multi-Function Switch (MFS) Cleaning & Internal pics in a 2001 Explorer; Miesk5 NOTE, as John wrote, it should be electrically & functionally identical to our years; "...Wipe with a rag, hit with contact cleaner and an old toothbrush to clean. Regrease with dielectric grease. Save ~$80 for a new switch that will only last ~4 years..."
Source: by Electrohacker


TURN SIGNAL LAMPS/HAZARD FLASHER LAMPS
ConditionPossible SourceAction
  • All Turn Signal/Hazard Flasher Lamps Inoperative
  • Open circuitry.
  • Damaged multi-function switch.
  • Damaged indicator flasher.
  • Blown fuse.
J1 CHECK FUSES
  • Check turn/hazard flasher fuse 7 and fuse 13 for continuity.
Are fuses good?
YesNo
GO to J2.REPLACE bad fuse(s). RESTORE vehicle. RETEST system.
J2 CHECK VOLTAGE FEED SIDE FUSE 7
  • Key in RUN.
  • Check for voltage at turn flasher fuse 7, Circuit 687 (GY/Y), feed side.
Is battery voltage present?
YesNo
GO to J3.CHECK Circuit 687 (GY/Y) for continuity between ignition switch and IP fuse panel. REFER to Section 11-05 for testing of ignition switch.
J3 CHECK VOLTAGE FEED SIDE FUSE 13
  • Key OFF.
  • Check for voltage at hazard flasher fuse 13, Circuit 38 (BK/O), feed side.
Is battery voltage present?
YesNo
GO to J5.GO to J4.
J4 CHECK CONTINUITY OF CIRCUIT 38 (BK/O)
  • Disconnect battery ground cable.
  • Check for continuity on Circuit 38 (BK/O) between IP fuse panel fuse 13 and power distribution box fuse 13.
Is continuity present?
YesNo
CHECK fuse 13 and feed wiring in power distribution box. RESTORE vehicle. RETEST system.REPAIR open in Circuit 38 (BK/O). RESTORE vehicle. RETEST system.
J5 CHECK TURN/HAZARD FLASHER FEEDS
  • Disconnect battery ground cable.
  • Check continuity of Circuit 8 (O/Y) between IP fuse panel fuse 7 and turn flasher, Circuit 383 (R/W) between IP fuse panel fuse 13 and hazard flasher.
Is continuity present?
YesNo
GO to J6.REPAIR open in noncontinuous circuit(s). RESTORE vehicle. RETEST system.
J6 CHECK INDICATOR FLASHER
  • Reconnect battery ground cable.
  • Restore vehicle.
  • Substitute a known good indicator flasher.
Do turn/hazard lamps perform correctly?
YesNo
RESTORE vehicle. Problem corrected.GO to J7.
J7 CHECK MULTI-FUNCTION SWITCH FEEDS
  • Disconnect battery ground cable.
  • Check continuity of Circuit 44 (LB) between turn flasher and multi-function switch Pin C1-1, Circuit 385 (R/W) between hazard flasher and multi-function switch Pin C1-4.
Is continuity present?
YesNo
GO to J8.REPAIR open in noncontinuous circuit(s). RESTORE vehicle. RETEST system.
J8 CHECK MULTI-FUNCTION SWITCH TURN CONTINUITY
  • Disconnect battery ground cable.
  • Remove multi-function switch. Refer to Section 11-05 for removal procedure.
  • Actuate multi-function switch to the left and right turn positions and check continuity between Pin C1-1, Circuit 44 (LB) and:
    • LEFT Pin C1-8, Circuit 3 (LG/W)
    • Pin C1-10, Circuit 9 (LG/O)
    • RIGHT Pin C1-5, Circuit 2 (W/LB)
    • Pin C1-2, Circuit 5 (O/LB)
Is continuity present in all cases?
YesNo
GO to J9.REPLACE damaged multi-function switch. REFER to Section 11-05. RESTORE vehicle. RETEST system.
J9 CHECK MULTI-FUNCTION SWITCH HAZARD CONTINUITY
  • Disconnect battery ground cable.
  • Remove multi-function switch. Refer to Section 11-05 for removal procedure.
  • Actuate multi-function switch to the hazard position and check continuity between Pin C1-4, Circuit 385 (R/W) and:
    • Pin C1-2, Circuit 5 (O/LB)
    • Pin C1-10, Circuit 9 (LG/O)
    • Pin C1-5, Circuit 2 (W/LB)
    • Pin C1-8, Circuit 3 (LG/W)
Is continuity present in all cases?
YesNo
GO to J10.REPLACE damaged multi-function switch. REFER to Section 11-05. RESTORE vehicle. RETEST system.
J10 CHECK LAMP FEED WIRING
  • Disconnect battery ground cable.
  • Install multi-function switch. Refer to Section 11-05.
  • Check continuity between multi-function switch circuit feed specified and the corresponding exterior lamp:
    • Circuit 3 (LG/W) Left Front Turn Lamp
    • Circuit 2 (W/LB) Right Front Turn Lamp
    • Circuit 9 (LG/O) Left Rear Stop/Turn Lamp
    • Circuit 5 (O/LB) Right Rear Stop/Turn Lamp
Is continuity present in all cases?
YesNo
GO to J11.REPAIR open in noncontinuous circuit. RESTORE vehicle. RETEST system.
J11 CHECK MINIATURE BULBS
  • Remove miniature bulbs.
  • Check continuity of front turn lamps and rear stop/turn lamps.
Is continuity present?
YesNo
GO to J12.REPLACE damaged miniature bulb. RESTORE vehicle. RETEST system.
J12 CHECK LAMP GROUNDS
  • Disconnect battery ground cable.
  • Check continuity of Circuit 57 (BK) at each front turn lamp and each rear stop/turn lamp with a known good ground.
Is continuity present?
YesNo
System OK.REPAIR open in noncontinuous circuit. RESTORE vehicle. RETEST system.
Thank you very much for all your advice. I found out the wires for my my driver's side tail lights were being pulled down by the rusted out rear sill. So just cut it that section out since I'm missing most of that area Anyways and then zip tied the wires in a secure location. Also the tail gate was replaced with a new one and the wires for the window were sticking out and ended up getting pinched. So just removed the rubber seal and shortened the protective cover, pushed the wires in and then the rubber seal. So far so good!
 
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