996 Carrera Group 0 Part 2 Diagnosis / PAGE 341
Fault, fault code Possible causes, elimination, notes · Test point 2
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Fault, fault code Possible causes, elimination, notes
Test point 2
Data lead, navigation Open circuit/short to ground
unit-PCM 1. Pull off plug II on the display and operator control unit.
Open circuiVshort to
ground 2. Pull off plug on the navigation unit.
Short to B+
Signal disturbance 3. Check lead from navigation unit plug pin 7 to plug II pin 17
Fault code 21 for continuity and short to ground.
Short to B+
Pull off plug II on the display and operator control unit.
2. Pulloff plugon the navigationunit.
3. Check lead from navigation unit plug pin 7 to plug II pin 17
for short to B+.
Signal disturbance
Check lead from navigation unit plug pin 7 to plug II pin 17
for short with other leads.
91 -D22 9101 Diagnosis/troubleshooting, PCM
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