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 MANUALSSAAB20009-3 CONVERTIBLE (9400) L4-2.0L TURBO (B205)REPAIR AND DIAGNOSISACCESSORIES AND OPTIONAL EQUIPMENTANTITHEFT AND ALARM SYSTEMSDESCRIPTION AND OPERATIONCONTROL MODULE, THEFT PROTECTION
2000 Saab 9-3 Convertible (9400) L4-2.0L Turbo (B205)
Control Module, Theft Protection
2000 Saab 9-3 Convertible (9400) L4-2.0L Turbo (B205)SECTION Control Module, Theft Protection
Control Module:
The theft protection functions for the alarm and immobilizer are part of TWICE and are controlled by the system control module. See TWICE for further information.
The main task of the control module for the anti-theft alarm function is to monitor the status of the sensors continuously as a central unit when the alarm is armed, trip an alarm via the siren and/or direction indicators if a break-in occurs and prevent the car from starting via the immobilizer.
The control module contains a processor in which a fixed control program is stored in a PROM (Programmable Read Only Memory). As different markets have special requirements for the function of anti-theft alarms, this can be programmed to suit the market concerned. There are also several options for changing the function depending on the customer's preferences.
The module is programmed using Tech 2 and the information is stored in an EEPROM (Electrically Erasable PROM). The previous programming is deleted when a new program is entered. The stored programming is retained in the event of a power failure.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.