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Fault code 44: 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 44)

Work instruction Display OK If not OK
1 Check country coding.
  • Check whether the control module has been coded correctly in the "Country coding" menu item.
 Step 2 Re-code control module.
->End
2 Check wire from the alarm system control module to the "safe" contact for short circuit to ground.
  • Switch off the ignition.
  • Pull plugs A and B off the alarm system control module.
  • Pull plug off the door lock on the driver's side.
  • Measure resistance between plug A on alarm system control module pin 5 and ground.
 Step 3 Repair wiring harness.
->End
3 Check wire from the alarm system control module to the "safe" contact for short circuit to B+.
  • Switch on ignition.
  • Measure voltage between plug A on alarm system control module pin 5 and ground.
 0 V
Step 4		 Repair wiring harness.
->End
4 Check wire from the alarm system control module to the "safe" contact for open circuit.
  • Switch off the ignition.
  • Measure resistance between plug A on alarm system control module pin 5 and pin 7 on plug of door lock on driver's side.
 < 5
Step 4		 Repair wiring harness.
->End
5 Check the wire from the alarm system control module to the central locking switch for short circuit to ground.
  • Pull plug off central locking switch.
  • Measure resistance between plug A on alarm system control module pin 29 and ground.
 Step 6 Repair wiring harness.
->End
6 Check the wire from the alarm system control module to the central locking switch for short to B+.
  • Switch on ignition.
  • Measure voltage between plug A on alarm system control module pin 29 and ground.
 0 V
Step 7		 Repair wiring harness.
->End
7 Check the wire from the alarm system control module to the central locking switch for open circuit.
  • Switch off the ignition.
  • Measure resistance between plug A on alarm system control module pin 29 and plug on central locking switch pin 1.
 < 5
Step 8		 Repair wiring harness.
->End
8 Check wire from the alarm system control module to the central locking motor for short circuit to ground.
  • Pull plug off the driver's door lock.
  • Measure resistance between plug B on alarm system control module pin 3 and ground.
 Step 9 Repair wiring harness.
->End
9 Check wire from the alarm system control module to the central locking motor for short circuit to B+.
  • Switch on ignition.
  • Measure voltage between plug B on alarm system control module pin 3 and ground.
 0 V
Step 10		 Repair wiring harness.
->End
10 Check wire from the alarm system control module to the central locking motor for open circuit.
  • Switch off the ignition.
  • Measure resistance between plug B on alarm system control module pin 3 and pin 1 on plug of door lock on driver's side.
 < 5
Step 11		 Repair wiring harness.
->End
11
  • Replace driver's door lock.
 ->End
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