96-57Fault code 52 · Door lock barrel "open", activated longer than 60 s

911 Turbo (996) Alarm system I 48 96 96-57Fault code 52 Door lock barrel "open", activated longer than 60 s Diagnostic conditions • 60 s waiting time Possible cause of fault ♦Incorrect operation, door lock actutated in direction "open" for longer than 60 s ♦Short circuit to voltage/ground or open circuit in the wiring between the alarm system control module and both door locks ♦Door lock faulty Affected terminals Plug A, terminal 15 Diagnosis/troubleshooting Work instruction Display OK If not OK 1 Check wire between ♦Pull plug A off the control mod- ∞ Ω Repair wiring har- alarm system control ule ⇒ Step 2 ness module and door lock → End ♦Pull plug off both door locks (driver/passenger) for ♦Measure the resistance between short circuit to ground plug A pin 15 and ground 2 Check wire between ♦Switch on ignition 0 V Repair wiring har- alarm system control ⇒ Step 3 ness ♦Measure voltage between plug A module and door lock → End on control module pin 15 and (driver/passenger) for ground short circuit to B+ 3 Check wire between ♦Switch off ignition < 5 Ω Repair wiring har- alarm system control ⇒ Step 4 ness ♦Measure resistance between module and door lock → End plug A pin 15 and plug on (driver/passenger) for driver’s door lock pin 6 open circuit ♦Measure resistance between plug A pin 35 and plug on pas- senger’s door lock pin 6 4 Determine which door ♦In the menu item "Input signals", Door lock barrel not ⇒ Step 6 lock is faulty select "Door lock barrel" actuated ⇒ Step 5 ♦Connect plug on passenger’s door lock 9601 Fault code 52 96-57 page 1 Printed in Germany – 4, 2001 52xxxi48