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Fault code 3: Diagnosis/troubleshooting

DIAGNOSIS/TROUBLESHOOTING (FAULT CODE 3)

Work instruction Display OK If not OK
1 Check wire between alarm system control module and door lock (driver/passenger) for short circuit to ground.
  • Pull plug A off the control module.
  • Pull plug off both door locks.
  • Measure resistance between plug A pin 15 and ground.
 Step 2 Repair wiring harness.
-> End
2 Check wire between alarm system control module and door lock (driver/passenger) for short circuit to B+.
  • Switch on ignition.
  • Measure voltage between plug A on control module pin 15 and ground.
 0 V
Step 3		 Repair wiring harness.
-> End
3 Check wire between alarm system control module and door lock (driver/passenger) for open circuit.
  • Switch off the ignition.
  • Measure resistance between plug A pin 15 and plug on driver's door lock pin 6.
  • Measure resistance between plug A pin 35 and plug on passenger's door lock pin 6.
 < 5
Step 4		 Repair wiring harness.
-> End
4 Detect faulty door lock.
  • Select Door lock barrel in the Input signals menu item.
  • Connect plug on passenger's door lock.
 Door lock barrel not actuated.
Step 5		 Step 6
5 Detect faulty door lock.
  • Select Door lock barrel in the Input signals menu item.
  • Connect plug on driver's door lock.
 Door lock barrel not actuated. Step 7
6
  • Replace door lock on passenger's side.
 -> End
7
  • Replace door lock on driver's side.
 -> End
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