Locked out of my Disco II - keylock pin sheared while in superlock mode
#16
03-25-2018 | 07:05 AM
Baja
Joined: Aug 2013
Posts: 5,845
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From: Near Bordeaux, France
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san988 (04-17-2018)
#18
12-30-2021 | 02:10 PM
3rd Gear
Joined: Dec 2021
Posts: 3
Likes: 0
Savannah Buzz to the Rescue!
I assume bad door is the driver door, so the exterior lock is not being operated to tell BCU to disable alarm and superlock.
Driver door key operates a switch that momentarily grounds certain wires to signal "lock" or "unlock" - if you have panel off and can find blue& slate colored wire and blue& green wire, great - if not
Pretzle time - Under driver side kick panel (left of brake pedal), there are connectors shown in attached. Connector 733 - pin 10, is a blue with slate colored wire. Poke a straight pin through the insulation. Use a small length of wire to touch that pin to ground for a moment. Should disarm. FYI - connector 744-pin 5, blue & green, that is the door switch contact to arm the system.
If you just can get to the system under the dash, may have to work from the BCU end, and get at the plugs for the BCU (other side of dash).
You can also force the doors to unlock from super lock by applying 12 volts to certain wires. Locate connector C0292 under steering wheel. Pin 15 (pink & purple) is common to all doors except driver. Pin 1 (Pink & slate) is super lock for same group of doors. Pin 8 (Pink & red) is regular lock for same group of doors . Driver door is separate.
Poke pins in the three various pink & something wires above. Apply 12 volts (+) to pink& slate, and 12 volts (-) to pink&purple. That may unlock super lock. If not, reverse polarity and try again... The BCU does this by sending a command to the relay driver package on the back of the fuse panel, which uses an array of relays to send voltage in one polarity or the reverse, to make door motor move to locked, or back out to unlock.
You may have system in such a tizzy that you will have to try the Emergency Key Access code (for your vehicle, 4 digit), and there is also a generic one of 1515.
Driver door key operates a switch that momentarily grounds certain wires to signal "lock" or "unlock" - if you have panel off and can find blue& slate colored wire and blue& green wire, great - if not
Pretzle time - Under driver side kick panel (left of brake pedal), there are connectors shown in attached. Connector 733 - pin 10, is a blue with slate colored wire. Poke a straight pin through the insulation. Use a small length of wire to touch that pin to ground for a moment. Should disarm. FYI - connector 744-pin 5, blue & green, that is the door switch contact to arm the system.
If you just can get to the system under the dash, may have to work from the BCU end, and get at the plugs for the BCU (other side of dash).
You can also force the doors to unlock from super lock by applying 12 volts to certain wires. Locate connector C0292 under steering wheel. Pin 15 (pink & purple) is common to all doors except driver. Pin 1 (Pink & slate) is super lock for same group of doors. Pin 8 (Pink & red) is regular lock for same group of doors . Driver door is separate.
Poke pins in the three various pink & something wires above. Apply 12 volts (+) to pink& slate, and 12 volts (-) to pink&purple. That may unlock super lock. If not, reverse polarity and try again... The BCU does this by sending a command to the relay driver package on the back of the fuse panel, which uses an array of relays to send voltage in one polarity or the reverse, to make door motor move to locked, or back out to unlock.
You may have system in such a tizzy that you will have to try the Emergency Key Access code (for your vehicle, 4 digit), and there is also a generic one of 1515.
Savannah Buzz!!! Thank you! I just shorted the system on my 02 discovery and I'm back on the road!
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