Alarm system I 48 911 Turbo (996)96 · Work instruction Display O

Alarm system I 48 911 Turbo (996)96 Work instruction Display OK If not OK 5 Check control lead ♦Switch off ignition < 5 Ω Repair wiring har- between the alarm sys- ⇒ Step 6 ness ♦Measure resistance between tem control module and → End plug A on alarm system control the signal converter for module pin 4 and plug on signal open circuit converter pin 6 6 Check data lead between ♦Switch off ignition ∞ Ω Repair wiring har- the alarm system control ⇒ Step 7 ness ♦Pull plug A off the alarm system module and the signal → End control module converter for short cir- ♦Pull plug off the signal converter cuit to ground ♦Measure resistance between plug A on control module pin 3 and ground 7 Check data lead between ♦Switch on ignition 0 V Repair wiring har- the alarm system control ⇒ Step 8 ness ♦Measure voltage between plug A module and the signal → End on alarm system control module converter for short cir- pin 3 and ground cuit to B+ 8 Check data lead between ♦Switch off ignition < 5 Ω Repair wiring har- the alarm system control ⇒ Step 9 ness ♦Measure resistance between module and the signal → End plug A on alarm system control converter for open circuit module pin 3 and plug on signal converter pin 8 9 ♦Replace signal converter → End 96-47 page 2 9601 Fault code 42 42xxxi48 Printed in Germany – 4, 2001