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Home >> Porsche >> 2003 >> 911 Carrera 4S, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Entertainment Systems >> Radio, Navigation & Pcm Diagnosis - 911 CARRERA (996) >> System N 01 >> Fault overview >> Test point 5 >> Possible causes, elimination, notes

Possible causes, elimination, notes

Open circuit/short to ground/short to B+ 

  1. Pull off plug on the navigation unit.
  2. Pull off plug I on the instrument cluster.
  3. Check lead from navigation unit plug pin 3 to plug I pin 13 for continuity and short to ground or short to B+.
NOTE: The lead is routed via jumper plug 1 on relay carrier 1.
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