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Fault code 23: Diagnosis/troubleshooting

DIAGNOSIS/TROUBLESHOOTING (FAULT CODE 23)

Work instruction Display OK If not OK
1 Check wire from the alarm system control module to the DME control module for short circuit to B+.
  • Switch off the ignition.
  • Pull plug A off the alarm system control module.
  • Pull plug A off the DME control module.
  • Switch on ignition.
  • Measure voltage between plug A on alarm system control module pin 23 and ground.
 0 V
Step 2		 Repair wiring harness.
-> End
2 Check wire from the alarm system control module to the DME control module for open circuit.
  • Measure resistance between plug A on alarm system control module pin 23 and plug A on DME control module pin 3.
 < 5
Step 3		 Repair wiring harness.
-> End
3
  • Replace DME control module as a test.
 -> End
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