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Topic: Anti Theft system problem (Read 1442 times) previous topic - next topic

Anti Theft system problem

I just got a '86 Thunderbird 5.0 with the keyless entry, and the anti-theft setup. The car was free and didn't come with any keys, although the ignition key was broke off inside the ignition. I don't have the code for the keyless entry and can't find it anywhere on the car, so I can't shut off the anti-theft system to get the car to start. Is there a way to bypass/remove the anti-theft system so I can get this thing going? I'm not worried about anybody trying to steal the car where I live, the title said it was a recovery, and the body is pretty trashed, so I just need to make sure the engine and AOD transmission are in ok working order before I go to the hassle of swapping it into my '65 Mustang coupe. Thanks
 

Anti Theft system problem

Reply #1 –
Look for a sticker on the inside of the trunk lid for the door code.

Anti Theft system problem

Reply #2 –
Ignition in "START" (to keep the fuel pump running until it starts) and jumper battery positive to the little wire on the starter relay to crank the engine.
When it starts let the ignition return to "RUN".

The anti-theft "start interrupt relay" opens the circuit between the ignition switch start position and the starter relay. It's kind of like an extra nuetral safety switch.\

Anti Theft system problem

Reply #3 –
Would it be possible to bypass the entire system? I got the broken key out of the ignition switch, and happened to have an old Ford key from a '78 Bronco that turns the ignition switch, unfortunately still no door key to dissarm the system. I can't get it to crank with the key at all, but all the lights in the dash go out when turned to start, and not hearing the fuel pump kick on when turned ot start either. The car washiznit head on when parked in a narrow alley, is there a fuel pump reset switch on the car hidden somewhere? Jumping the solenoid when the key is in the run position turns the engine over, but there is no spark to the plugs. Does the '86 normally use the same key for both the door and ignition? If so I might be able to get one made using the piece I pulled from the ignition switch.

Anti Theft system problem

Reply #4 –
My 84 has a seperate key for the doors and trunk.
The fuel pump should run for one or two seconds with the key in run if the motor is not running.
It should run continuously with the key in start.
There is an "inertia " fuel pump cutoff switch that must be manually reset if it is tripped.

Anti Theft system problem

Reply #5 –
From the 84 and 87 EVTM:

The Anti-theft module, relays and fuses are in the upper righthand side of the trunk.

Try removing the fuses.

Anti Theft system problem

Reply #6 –
OK checked the shut off switch, and it appears to be fine, not tripped. Going to try to get a key made from the broken one tomorrow and see if that works to unlock the door and shut off the system.

Anti Theft system problem

Reply #7 –
I was wondering what those fuses went to. I did have a burnt out 15 amp fuse back there. The other 2 fuses looked ok, but didn't try pulling them to try starting it. Maybe tomorrow.