Test point 15

Control unit faulty Fault code 15

Replace alarm control unit.

Test point 16

Signal from the airbag Positive short Fault code 16

1. Pull off the plug I at the alarm control unit.

2. Pull off the DME plug.

90 01 Diagnosis/troubleshooting, alarm system

Fault, fault code

Possible causes, elimination, notes

5. If no fault can be found on the wiring harness, reattach the plug on the alarm control unit and on the airbag control unit.

6. Switch on the ignition and clear the fault memory of the alarm system.

If the fault no longer occurs, the DME control unit is faulty.

If the fault occurs again, disconnect the plug on the airbag control unit.

7. Clear the fault memory of the alarm system.

- If the fault no longer occurs, the airbag control unit is faulty.

- If the fault occurs again, the control unit alarm system is faulty.

3. Pull off the airbag control unit plug.

4. Voltmeter at alarm control unit plug I pin 33 and positive. Display: 0 Volts.

5. If no fault can be detected on the wiring harness, reattach the plug to the alarm control unit and the airbag control unit.

6. Switch on the ignition and clear the fault memory of the alarm system.

- If the fault no longer occurs, the DME control unit is faulty.

- If the fault occurs again, detach the plug on the airbag control unit,

7. Clear the fault memory of the airbag system.

- If the fault no longer occurs, the airbag control unit is faulty.

- If the fault occurs again, the alarm system control unit is faulty.

Test point 17

Signal from airbag Ground short Fault code 17

1. Pull off plug I on the alarm control unit.

2. Pull off DME plug.

90 01 Diagnosis/troubleshooting, alarm system

Fault, fault code Possible causes, elimination, notes

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