96-26Fault code 20 · Status lead, signal converter, short circuit to ground

911 Turbo (996) Alarm system I 48 96 96-26Fault code 20 Status lead, signal converter, short circuit to ground Diagnostic conditions • Terminal 86S switched on Possible cause of fault ♦Short circuit to ground in the wire between the alarm system control module and the signal converter Affected terminals Plug A, terminals 3 and 4 Diagnosis/troubleshooting Work instruction Display OK If not OK 1 Check wiring from signal ♦Switch off ignition ∞ Ω Repair wiring har- converter to control mod- ⇒ Step 2 ness→ End ♦Pull plug A off the control mod- ule for short circuit to ule ground ♦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 2 Check wiring from signal ♦Switch off ignition < 5 Ω Repair wiring har- converter to the control ⇒ Step 3 ness ♦Measure resistance between module for open circuit → End 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 3 ♦Replace signal converter → End 9601 Fault code 20 96-26 page 1 Printed in Germany – 4, 2001 20xxxi48