996 Carrera Group 0 Part 1 Diagnosis / PAGE 168
8.1 No communication between diagnostic tester and control module · Test Work instruction Result Possib
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911 Carrera 4 (996) PSM diagnosis
8.1 No communication between diagnostic tester and control module
Test Work instruction Result Possible causes of fault
T01 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
.Measure voltage between the functioning:
following terminals: terminal 31 (GP 13)
battery wiring harness plug (component and
side) terminal 30
terminal 30
and
ground Yes:102
102 Test: short to ground/open circuit Greater
in power supply circuit than 11 V Check the following componentsforI
correct functioning:
.Measure voltage betweenthe fuse 81,
following terminals: fuse F6i.
diagnosiswiring harness plug (wiring Check the following connection pointsI
harness side) terminal 16 in the passenger compartmentwiringI!harness:
and 17, 120
ground
Note: an open circuit or a short circuit
is present. Check wiring harnessfor
continuityand for pinchesor chafing
TO3 damage.
45 -D 105
INo:!.:Yes:
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