Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCADILLAC1993FLEETWOOD BROUGHAM V8-350 5.7LREPAIR AND DIAGNOSISACCESSORIES AND OPTIONAL EQUIPMENTCENTRAL CONTROL MODULESERVICE AND REPAIRCENTRAL CONTROL MODULE/PASS-KEY(R) PROGRAMMING
1993 Cadillac Fleetwood Brougham V8-350 5.7L
Central Control Module/Pass-Key(R) Programming
1993 Cadillac Fleetwood Brougham V8-350 5.7LSECTION Central Control Module/Pass-Key(R) Programming
*** This procedure added per Bulletin No.: 439004 ***
PROGRAMMING A NEW CENTRAL CONTROL MODULE (CCM)
IMPORTANT: Any new Central Control Module (CCM) will automatically program to the resistance of the key (or interrogator setting) being used at the first Ignition "ON" cycle. This can only be done once for the life of the module.
New CCM is unprogrammed. Before the system will function properly after a new CCM has been installed, it must be programmed to the code that matches the customer's keys. Programming a new CCM is very simple:
1. Install the new unprogrammed CCM.
2. insert one of the customer's keys in the ignition lock cylinder and turn it to the "0N" position. It's a good idea to start the Engine at this time to verify system operation.
3. Observe the "PASS KEY FAULT" Indicator Lamp:
^ The indicator lamp should light for about five seconds and then go out. If the wiring or contacts to the Key Resistance Pellet or the key is defective or intermittent and a new module is installed, the Engine will start but the "PASS KEY FAULT" indicator will flash at a rate of one flash per second until the Ignition Switch is turned off. This indicates that the module did not program and that the system components, wiring and contacts should be checked for a fault.
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.