996 Carrera Group 0 Part 2 Diagnosis / PAGE 210
Test point 37 · Passenger compartment Replacepassenger compartmentmonitoring sensor.
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911 Carrera (996) Alarm system diagnosis
Test point 37
Passenger compartment Replacepassenger compartmentmonitoring sensor.
monitoring sensor faulty
Fault code 37
Test point 38
Signal converter faulty 1. Check the power supplyfor the signal converter:
Fault code 39 Disconnectthe plug on the signal converter.
Voltmeter at plug housing pin 4 (negative) and pin 5 (positive).
Ignition key inserted.
Display: Battery voltage.
2. Check the control lead for the signal converter (pin 6) to the alarm
control module plug I pin 4 for continuity I short to B+ and short to
ground.
3. Check the status lead for the signal converter (pin 7) to the alarm
control module plug I pin 12 for continuity, short to B+ and short to
ground.
4. Check the data lead for the signal converter (pin 8) to the alarm
control module plug I pin 3 for continuity I short to B+ and short to
ground.
Test point 39
Signal converter I Check the transponder coil:
coil fault Disconnectthe plug on the signal converter.
Fault code 40
Connectohmmeterto pins 1 and 2
Display: 20 -25.0. at 20 °C
Connect ohmmeter to pin 1 and ground
Display: 00 .0.
9001 DiagnosisjTroubleshooting, Alarm system 132 90 -D 43
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