Alarm system I 48 911 Turbo (996)96 · Diagnosis/troubleshooting

Alarm system I 48 911 Turbo (996)96 Diagnosis/troubleshooting Work instruction Display OK If not OK 1 Check micro switches of ♦Connect PST 2 and switch on Driver’s side not both door locks ignition. secured (not USA) ⇒ Step 2 Passenger’s side not ♦Close doors secured (not USA) ♦Do not lock or secure the vehi- Driver’s side not cle locked ♦Select the following switch posi- Passenger’s side not tions in the "Input signals" menu locked ⇒ Step 4 ♦Driver’s side secured ♦Passenger’s side secured ♦Driver’s side locked ♦Passenger’s side locked 2 Check wiring from con- ♦Pull plugs A and B off the control ∞ Ω Repair wiring har- trol module to door lock module ⇒ Step 3 ness for short circuit to ground → End ♦Pull plug off the door lock with the incorrect switch positions from step 1 ♦Measure resistance between plug A on control module pin 5 and ground (if on driver’s side) or pin 28 on the control module and ground (if on passenger’s side) 3 Check wiring from con- ♦Pull plug off the door lock with < 5 Ω Repair wiring har- trol module to door lock the incorrect switch positions ⇒ Step 6 ness for open circuit from step 1 → End ♦Measure resistance between plug A on control module pin 5 and plug on door lock pin 7 (if on driver’s side) or pin 28 on the control module and pin 7 on the door lock (if on passenger’s side) 4 Check leads from the ♦Pull plugs off both door locks ∞ Ω Repair wiring har- alarm system control ⇒ Step 5 ness ♦Pull plugs A and B off the alarm module to the servomo- → End system control module tors for short circuit to ♦Measure resistance between ground plug B on control module pin 9 and ground ♦Measure resistance between plug A on control module pin 19 and ground 96-52 page 2 9601 Fault code 47 47xxxi48 Printed in Germany – 4, 2001