Fault, Fault code Possible causes, elimination, Notes · Test point 22

911 Carrera (996) Alarm system diagnosis Fault, Fault code Possible causes, elimination, Notes Test point 22 Passenger compartment 1. Pull off plug I on the alarm control module. monitoring sensor 2. Pull off the plug at the passenger compartment monitoring sensor. Short to ground Fault code 22 3. Ohmmeteron alarm control module plug I pin 24 and ground. Display: 00.0. If display < 5 .0.,check wiring harnessfor chafing and pinching damage. Test point 23 W-iead See test point 21, point 5, (DME-immobilizer) Short to B+ Fault code 23 Test point 24 Control module faulty Replacecontrol module. Fault code 24 Test point 25 No terminal 86 S 1. Checkthe fuse F 5/1. recognised 2. Pulloff plug I on the alarmcontrolmodule. Fault code 25 3. Volbneter at plug I alarm control module pin 16 and ground. Insert the ignition key into the ignitionlock. Display: Battery voltage 4. Pull off the plug on the ignition lock. 5. Ohmmeter at ignition lock plug pin 86 S and plug I, alarm control module pin 16. Display: < 5 .Q 6. If no fault is detected, replace the electrical contact part of the ignition lock.