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 MANUALSAUDI1998A8 SEDAN (4D2) V8-3.7L (AEW)REPAIR AND DIAGNOSISACCESSORIES AND OPTIONAL EQUIPMENTANTITHEFT AND ALARM SYSTEMSALARM MODULESERVICE AND REPAIR
1998 Audi A8 Sedan (4D2) V8-3.7L (AEW)
Alarm Module: Service and Repair
1998 Audi A8 Sedan (4D2) V8-3.7L (AEW)SECTION Service and Repair
Removing
The control module for interior monitoring -1- is installed in the left-rear of the trunk, below the pump for the central locking system -2-.
- Remove left rear trunk trim panel.
- Remove two nuts (arrows).
- Disconnect harness connector at control module.
Installing
Installation is the reverse order of removal.
Pin assignment of control module harness connector
- Control module removed
Control Module Harness Connector, Terminal Assignment:
1 - Voltage supply terminal 30
2 - 06.95: not occupied; 07.95 >: Ground terminal 31
3 - Activating/deactivating CL pump
4 - Ventilation low
5 - Voltage supply sensor, left
6 - Ground sensor, left
7 - Analog signal sensor, left
8 - 40 kHz-Cycle sensor, left
9 - 06.95: not occupied; 07.95 >: switch for deactivation
10 - Output control lamp
11 - Ground terminal 31
12 - Not occupied
13 - Input door contacts
14 - Ventilation high
15 - Voltage supply sensor, right
16 - Ground sensor, right
17 - Analog signal sensor, right
18 - 40 kHz-cycle sensor, right
19 - Not occupied
20 - Alarm output to CL pump
Pin assignment of sensor harness connector
- Sensor unit removed
Sensor Harness Connector, Terminal Assignment:
1 - 40 kHz-cycle
2 - Voltage supply
3 - Ground
4 - Analog signal
RENDER: 1.0x
NO RELATED
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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.