996 Carrera Group 0 Part 1 Diagnosis / PAGE 293
PSM diagnosis 911 Carrera (996) · 8. Troubleshooting
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PSM diagnosis 911 Carrera (996)
8. Troubleshooting
No communication between diagnostic tester and control module
Test Work instruction Result Possible causes of fault
Test: short to ground in power Greater No:
supply circuit than 11 V .Check the following components for
correct functioning:
Ignition off battery
All loads switched off and!
Pull wiring harness plug off of: generator
diagnostic tester .Check following circuits for correct'functioning:
Measure voltage between the
following terminals: terminal 31 (GP 13)landIterminal
battery wiring harness plug (component
side) 30
terminal 30
landI~round !Test:
Yes:102
TO2 short to ground/open circuit Greater No:
In power supply circuit than 11 V .Check the following componentsfor
correct functioning:
Measurevoltage between theI fuse 81,
fOIiOWingterminals: fuse F3
diagnosis wiring harness plug (wiring .Check the following connection points
narness side) terminal 16 in the passenger compartmentwiring
and harness: 17r 125
ground
Note: an open circuit or a short circuit
is present. Check wiring harnessfor
continuityand for pinches or chafing
Yes:103 damage.
45 -D 230
IIT018.1
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