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Fault code 11: Diagnosis/troubleshooting

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2005 Porsche 911, 2004 Porsche 911, 2003 Porsche 911, 2002 Porsche 911, and 2001 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSIS/TROUBLESHOOTING (FAULT CODE 11)

Work instruction Display OK If not OK
1 Visual inspection
  • Check plug B on alarm system control module for contact and corrosion.
 Step 2 Repair plug B or wiring harness.
-> End
2 Check power supply (pin 30).
  • Switch off the ignition.
  • Unplug plug B from the alarm system control module.
  • Measure voltage between plug B on control module pin 7 and ground.
 > 11 V
Step 7		 Step 3
3 Check wire from the mini relay to the alarm system control module for open circuit.
  • Pull off mini relay in the fuse box.
  • Measure resistance between plug B on control module pin 7 and pin 1 on the mini-relay carrier.
 < 5
Step 4		 Repair wiring harness.
-> End
4 Check wire from the current distributor (F5) to the mini-relay carrier.
  • Measure voltage between the mini-relay carrier pin 4 and ground.
 > 11 V
Step 5		 Repair wiring harness and check fuse in current distributor.
-> End
5 Check wire from ground point 3 to the mini-relay carrier.
  • Measure resistance between the mini-relay carrier pin 5 and ground.
 < 5
Step 6		 Repair wiring harness or check ground point 3 for corrosion.
-> End
6
  • Replace mini relay.
 -> End
7
  • Replace control unit.
 -> End
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