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Home >> Porsche >> 2001 >> Boxster Base, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instruments, Fuel Gauge, Alarm System - Diagnosis >> System I 16 >> Fault overview >> Test point 38 >> Possible causes, elimination, Notes

Possible causes, elimination, Notes

  1. Check the power supply for the signal converter:
    • Disconnect the 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, 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, short to B+ and short to ground.
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