1997 Cadillac STS needing instruction on replacing key cyli

Tiny
BCS2920
  • MEMBER
  • 1997 CADILLAC STS
1997 Cadillac STS V8 Front Wheel Drive Automatic

I am needing to fix my car not starting. When I try and start it it doesnt make any noise at all. It only gives me a message about theft - starter dissabled. When I put the key into the ingnition it feels as though it gets stuck. So I asked a few mechanic minded friends and they said that on other GM vehicles they've had the same thing happen. So I got the cylinder to replace the old one. I've heard of bypassing the theft system by connecting it to two wires underneath the steering console but I don't know if thats the best option for the long run. Can you give me instructions on taking apart the steering console to replace the cylinder?
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Monday, April 6th, 2009 AT 12:34 PM

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Tiny
BLUELIGHTNIN6
  • EXPERT
REMOVAL:
Disable the SIR system as follows:
Disconnect the negative battery cable.
Turn the ignition switch OFF.
Remove the SIR fuse. On 1990 Deville and Fleetwood, remove SIR fuse No. 3 from the fuse panel. On 1991-93 Deville and Fleetwood, remove SIR fuse No. 18 from the fuse panel. On 1990-91 Eldorado and Seville, remove SIR fuse No. 19 from the fuse panel. On 1992-93 Eldorado and Seville, remove SIR fuse No. All from the engine compartment fuse panel.
On Deville and Fleetwood, remove the left lower sound insulator. On Eldorado and Seville, remove the left side sound insulator.
Remove the Connector Position Assurance (CPA) and detach the yellow 2-way connector at the base of the steering column.

Remove the steering wheel and the turn signal switch. When removing the turn signal switch, allow the switch to hang freely; do not detach the electric connectors.
Remove the key from the lock cylinder.
Remove the buzzer switch assembly.
Reinsert the key in the lock cylinder and turn the key to the LOCK position.
Remove the lock retaining screw. If not equipped with pass key lock cylinder, remove the lock cylinder.
On 1990-91 Eldorado and Seville equipped with pass key lock cylinder, remove the lock cylinder as follows:
Detach the terminal connector.
Remove the retaining clip from the housing cover and the wiring protector.
Attach a length of mechanics wire to the terminal connector to aid in reassembly.
Gently pull the wire through the bracket and column housing and remove the lock cylinder.

On 1991-93 Deville and Fleetwood and 1992-93 Eldorado and Seville equipped with pass key lock cylinder, remove the lock cylinder as follows:
Detach the pivot and pulse switch connector from the bulkhead connector and remove the 13-way secondary lock.
Remove the 2 terminals of the pass key wire harness from cavities 12 and 13 of the switch connector.
Remove the wiring protector.
Attach a length of mechanics wire to the terminal to aid in reassembly.
Remove the retaining clip from the housing cover and gently pull the wire harness through the column. Remove the lock cylinder

INSTALLATION:
If equipped with pass key lock cylinder, route the wire from the lock cylinder and snap the retaining clip in the hole in the housing. Failure to route the wire properly may result in component damage or malfunction of the pass key lock cylinder.

Install the lock cylinder.
On 1990-91 Eldorado and Seville equipped with pass key lock cylinder, proceed as follows:
Connect the mechanics wire to the terminal connector and gently feed the lock cylinder wire through the column housing.
Snap the clip into the hole in the housing.
Make sure the wires are not interfered with by the normal travel of the switch actuator rack and lock cylinder sector gear.
Gently pull the lock cylinder wire at the base of the column to remove any wire kinks that may be inside the column assembly.
Connect the pass key connector to the vehicle harness.

On Deville, Fleetwood, Eldorado and Seville equipped with pass key lock cylinder, proceed as follows:
Route the wire terminal through the column and snap the retaining clip into the hole in the housing.
Connect the 2 terminal of the pass key wire harness to cavities 12 and 13 of the pivot and pulse switch connector.
Install the 13-way secondary lock.
Connect the switch connector to the bulkhead connector.

Install the lock retaining screw and tighten to 22 inch lbs. (2.5 Nm).
On 1990 Deville and Fleetwood and 1990-91 Eldorado and Seville, turn the ignition key to the RUN position. On all other vehicles, remove the key.
Install the buzzer switch assembly.
If the key was removed, reinstall it and make sure it is in the LOCK position.
Install the turn signal switch and steering wheel.
Enable the SIR system as follows:
Connect the yellow 2-way connector at the base of the steering column and install the CPA.
On Deville and Fleetwood, install the left lower sound insulator. On Eldorado and Seville, install the left side sound insulator.
Install the SIR fuse.
Connect the negative battery cable.
Turn the ignition switch to RUN. Verify that the "INFLATABLE RESTRAINT" indicator light flashes 7-9 times and then remains OFF. If the light does not function as specified, there is a fault in the SIR system.

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Monday, April 6th, 2009 AT 2:02 PM

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