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Home >> Porsche >> 2004 >> 911 GT2 >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Lights, Lamps, Switches Interior, Theft Protection Diagnosis - 911 Turbo (996) >> Fault code 20 >> Diagnosis/troubleshooting

Fault code 20: Diagnosis/troubleshooting

DIAGNOSIS/TROUBLESHOOTING (FAULT CODE 20)

Work instruction Display OK If not OK
1 Check wiring from signal converter to control module for short circuit to ground
  • Switch off ignition
  • Pull plug A off the control module
  • Pull plug off the signal converter
  • Switch on ignition
  • Measure resistance between plug A on control module pin 4 and ground
  • Measure resistance between plug A on control module pin 3 and ground
Step 2 Repair wiring harness
-> End
2 Check wiring from signal converter to the control module for open circuit
  • Switch off ignition
  • Measure resistance between plug A on control module pin 4 and plug on signal converter pin 6
  • Measure resistance between plug A on control module pin 3 and plug on signal converter pin 8
< 5
Step 3
Repair wiring harness
-> End
3
  • Replace signal converter
-> End