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Fault code 45: Diagnosis/troubleshooting

DIAGNOSIS/TROUBLESHOOTING (FAULT CODE 45)

Work instruction Display OK If not OK
1 Check wiring from the alarm system control module to the door locks for short circuit to B+.
  • Pull plug off the two door locks.
  • Pull plugs A and B off the alarm system control module.
  • Switch on ignition.
  • Measure voltage between plug B on alarm system control module pin 3 and ground.
  • Measure voltage between plug B on alarm system control module pin 9 and ground.
 0 V
Step 2		 Repair wiring harness.
->End
2 Check servomotors for left door lock.
  • Switch off the ignition.
  • Reconnect plug to left door lock.
  • Disconnect plug connection X 11.
  • Measure resistance on plug connection X 11 (sleeve side) between pins 11 and 17.
  • On vehicles with Safe position: Measure resistance on plug connection X 11 (sleeve side) between pins 11 and 24.
 5 - 7 at 20 °C.
Step 3		 Replace left door lock.
->End
3 Check servomotors for right door lock.
  • Reconnect plug to right door lock.
  • Disconnect plug connection X 12.
  • Measure resistance on plug connection X 12 (sleeve side) between pins 11 and 17.
  • On vehicles with Safe position: Measure resistance on plug connection X 12 (sleeve side) between pins 11 and 24.
 5 - 7 at 20 °C.
Step 4		 Replace right door lock.
->End
4
  • Replace alarm system control module.
 ->End
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