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Fault code 13: 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 13)

Work instruction Display OK If not OK
1 Check wire from control module to the left door lock for short circuit to ground.
  • Switch off the ignition.
  • Pull plug A off the alarm system control module.
  • Pull plug off the left door lock.
  • Left-hand drive vehicle: Measure resistance between plug A on control module pin 30 and ground.
  • Right-hand drive vehicle: Measure resistance between plug A on control module pin 32 and ground.
 Step 2 Repair wiring harness.
-> End
2 Check wire from control module to the left door lock for short to B+.
  • Switch on ignition.
  • Left-hand drive vehicle: Measure voltage between plug A on control module pin 32 and ground.
  • Right-hand drive vehicle: Measure voltage between plug A on control module pin 30 and ground.
 0 V
Step 3		 Repair wiring harness.
-> End
3 Check wire from control module to left door lock for open circuit.
  • Switch off the ignition.
  • Left-hand drive vehicle: Measure resistance between plug A on control module pin 30 and pin 3 of plug on left door lock.
  • Right-hand drive vehicle: Measure resistance between plug A on control module pin 32 and pin 3 of plug on left door lock.
 < 5
Step 4		 Repair wiring harness.
-> End
4
  • Replace left door lock.
 -> End
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