Problem with brake/shift interlock....

1994 Mustang 3.8L

The gearshift has a thumb button that requires you to press it before
it will shift out of park. This is obviously a safety mechanism.
There has been some of malfunction and the button won't go in. So I am
stuck with a mustang that can't shift out of park. I already changed
fuse #9, which is the fuse for this and also the hazard lights. The
hazard lights don't work either.

How do I disable this interlock safety mechanism so I can move my car?

wrote:

> 1994 Mustang 3.8L
>
> The gearshift has a thumb button that requires you to press it before
> it will shift out of park. This is obviously a safety mechanism.
> There has been some of malfunction and the button won't go in. So I am
> stuck with a mustang that can't shift out of park. I already changed
> fuse #9, which is the fuse for this and also the hazard lights. The
> hazard lights don't work either.
>
> How do I disable this interlock safety mechanism so I can move my car?
>
I had a similar problem with a T-Bird. I removed the parking brake rocked the
car back and forth a few times, and then it shifted. Are you parked on a hill?

--
..boB
Arrived: 2006 FXDI, Red.
1997 HD FXDWG - Turbocharged Stolen 11/26/05 in Denver
1HD1GEL10VY3200010 CO License J5822Z
2001 Dodge Dakota QC 5.9/4x4/3.92
1966 Mustang Coupe - Daily Driver
1965 FFR Cobra - 427W EFI, Damn Fast.

How about depressing the brake pedal, ignition switch in run position then
moving the shifter. The button will not go in before these steps, leastwise
not on my '94.

--
Richard

'94 GT 'vert
Under Drive Pulleys
Transgo HD2 Reprogramming Kit
High Stall Torque Converter
3:73 Gears
Gripp Sub Frame Connectors (welded)
FRPP Aluminum Drive shaft
FRPP M5400-A Suspension
Laser Red

".boB" > wrote in message
om...
> wrote:
>
> > 1994 Mustang 3.8L
> >
> > The gearshift has a thumb button that requires you to press it before
> > it will shift out of park. This is obviously a safety mechanism.
> > There has been some of malfunction and the button won't go in. So I am
> > stuck with a mustang that can't shift out of park. I already changed
> > fuse #9, which is the fuse for this and also the hazard lights. The
> > hazard lights don't work either.
> >
> > How do I disable this interlock safety mechanism so I can move my car?
> >
> I had a similar problem with a T-Bird. I removed the parking brake
rocked the
> car back and forth a few times, and then it shifted. Are you parked on a
hill?
>
> --
> .boB
> Arrived: 2006 FXDI, Red.
> 1997 HD FXDWG - Turbocharged Stolen 11/26/05 in Denver
> 1HD1GEL10VY3200010 CO License J5822Z
> 2001 Dodge Dakota QC 5.9/4x4/3.92
> 1966 Mustang Coupe - Daily Driver
> 1965 FFR Cobra - 427W EFI, Damn Fast.
>

> I had a similar problem with a T-Bird. I removed the parking brake rocked the
> car back and forth a few times, and then it shifted. Are you parked on a hill?
>

No, it is in a parking lot (very flat). I tried rocking the car, but
still doesn't shift.

Isn't there a manual override button somewhere?????

Richard wrote:
> How about depressing the brake pedal, ignition switch in run position then
> moving the shifter. The button will not go in before these steps, leastwise
> not on my '94.
>

Have tried that already. Also, the manual has some sort of "override"
procedure where you remove the key, apply the parking brake, put key
back in, etc.... but that doesn't work either.

I'm very frustrated. My car is stuck in a parking lot just because of
a stupid "safety" mechanism!!

OK try this.
1. Engine off and remove ignition key.
2. Apply parking brake
3.Reinsert key and turn clockwise to the first position (OFF)
4. Depress the brake pedal, move shifter to neutral and start engine.

I seem to recall that you said the brake lights work and that the fuse is
okay. If that is correct I would suspect that the problem lies with the
brake shift interlock switch. It has perhaps moved and or is stuck such that
depressing the brake pedal does not activate the switch.

--
Richard

'94 GT 'vert
Under Drive Pulleys
Transgo HD2 Reprogramming Kit
High Stall Torque Converter
3:73 Gears
Gripp Sub Frame Connectors (welded)
FRPP Aluminum Drive shaft
FRPP M5400-A Suspension
Laser Red

"MicrosoftBob" > wrote in message
oups.com...
>
> Richard wrote:
> > How about depressing the brake pedal, ignition switch in run position
then
> > moving the shifter. The button will not go in before these steps,
leastwise
> > not on my '94.
> >
>
> Have tried that already. Also, the manual has some sort of "override"
> procedure where you remove the key, apply the parking brake, put key
> back in, etc.... but that doesn't work either.
>
> I'm very frustrated. My car is stuck in a parking lot just because of
> a stupid "safety" mechanism!!
>

Richard wrote:
> OK try this.
> 1. Engine off and remove ignition key.
> 2. Apply parking brake
> 3.Reinsert key and turn clockwise to the first position (OFF)
> 4. Depress the brake pedal, move shifter to neutral and start engine.
>
> I seem to recall that you said the brake lights work and that the fuse is
> okay. If that is correct I would suspect that the problem lies with the
> brake shift interlock switch. It has perhaps moved and or is stuck such that
> depressing the brake pedal does not activate the switch.
>

I managed to get it going. The above procedure was what I read in the
manual, but I just turned the key too far and put it past the "off"
position. It also turns out that there is a second fuse for the
interlock under the hood. It was blown and that's what caused the
problem. I don't understand why there would be two fuses for this
circuit.


Thanks!!

I don't understand why there would be two fuses for this
>circuit.
>
>Thanks!!
One fuse is for the brake lamp circuit, it gives the shift lock module the
signal from the depressed brake light switch. The other fuse supplies the B+
to the module. Two seperate circuits. Thank you, thank you, just through
money.I'll be here all week.

--
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