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Fault code 43: Diagnosis/troubleshooting

DIAGNOSIS/TROUBLESHOOTING (FAULT CODE 43)

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 ignition.
  • Pull plugs A and B off the alarm system control module.
  • Pull plug off the door lock on the passenger's side.
  • Measure resistance between plug A on alarm system control module pin 28 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 the ignition.
  • Measure voltage between plug A on alarm system control module pin 28 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 ignition.
  • Measure resistance between plug A on alarm system control module pin 28 and pin 7 on plug of door lock on passenger'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 the 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 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 passenger'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 the 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 ignition.
  • Measure resistance between plug B on alarm system control module pin 3 and pin 1 on plug of door lock on passenger's side.
 < 5
Step 11		 Repair wiring harness.
->End
11
  • Replace passenger's door lock.
 ->End
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