Test point 8

Central button lock open

Short to B+ Fault code 08

1. Pull plug I off the alarm system control module.

2. Check the central locking button.

Voltmeter at plug I pin 10 and ground. Switch for central locking not actuated.

Switch for central locking actuated towards "Open'

3. Disconnect plug connection on the switch for central locking.

4. Check the wire from the alarm system control module to the switch

Voltmeter at plug I pin 10 and ground.

Test point 9

Central lock button open/closed

Fault code 09

1. Pull plug I off the alarm system control module.

2. Check the switch for central locking.

Voltmeter at plug I pin 29 and ground. Switch for central locking not actuated.

Switch for central locking actuated towards "Closed".

Voltmeter at plug I pin 10 and ground. Switch for central locking not actuated.

Switch for central locking actuated towards "Open".

3. Disconnect the plug connection at the central locking button.

4. Check the leads from the alarm system control module to the central

Voltmeter at plug I pin 29 and ground. Voltmeter at plug I pin 10 and ground,

Test point 10

Voltage failure at terminal 30 with alarm system active Fault code 10

1. Check battery.

2. Check the power supply of the alarm system control module, Voltmeter at alarm system control module plug II pin 1 (negative) and

Note

The positive lead (terminal 30) is fused in the distribution board with an

Test point 11

Voltage failure during

Fault code 11

Troubleshooting in accordance with test point 10.

Test point 12

Wrong door lock module Fault code 12

Note

This fault concerns only USA vehicles. USA vehicles do not have the

Check country coding

2. Check the driver's side / passenger's side door lock and, if necessary, replace it with a door lock for USA vehicles.

3. Disconnect the plug connection at the central locking button.

Boxster

Alarm system diagnosis

Test point 13

Left door secured but not locked Fault code 13

1. Pull plug I off the alarm system control module.

2. Disconnect plug connection X 11 (driver's side).

3. Check the wire from the alarm system control module plug I pin 30 Ohmmeter at alarm system control module plug I pin 30 and ground

4. Check driver's side door lock switch contact.

Ohmmeter at plug connection X 11 pin A3 (sleeve side) and ground

Door not locked

Test point 14

Right door secured but not locked Fault code 14

1. Pull plug I off the alarm system control module.

2. Disconnect plug connection X 12 (passenger's side).

3. Check the wire from the alarm system control module plug I pin 32

Ohmmeter at alarm system control module plug I pin 32 and ground

4. Check passenger's side door lock switch contact.

Ohmmeter at plug connection X 12 pin A3 (sleeve side) and ground Door locked.

Display:

Door not locked.

Test point 15

Control unit faulty Fault code 15

Replace alarm system control module.

Test point 16

Signal from airbag Short to B+ Fault code 16

1. Pull plug I off the alarm system control module.

2. Unplug the DME (ECM) connector.

3. Pull off the airbag control module plug.

4. Voltmeter at alarm system control module plug I pin 33 and ground.

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

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

If the fault no longer occurs, the DME control module is faulty. If the fault occurs again, detach the plug on the airbag control module.

7. Clear the fault memory of the airbag system.

If the fault no longer occurs, the airbag control module is faulty. If the fault occurs again, the alarm system control module is faulty.

Test point 17

Signal from airbag Short to ground Fault code 17

1. Pull plug I off the alarm system control module.

2. Unplug the DME (ECM) connector.

3. Pull off the airbag control module plug.

4. Voltmeter at alarm system control module plug I pin 33 and positive.

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

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

If the fault no longer occurs, the DME control module is faulty. If the fault occurs again, detach the plug on the airbag control module.

7. Clear the fault memory of the alarm system.

If the fault no longer occurs, the airbag control module is faulty. If the fault occurs again, the alarm system control module is faulty.

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