996 Carrera Group 0 Part 1 Diagnosis / PAGE 176
8.4 Tiptronic CAN bus communication circuit · Test Work instruction Result Possible causes of fa
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911 Carrera 4 (996) PSM diagnosis
8.4 Tiptronic CAN bus communication circuit
Test Work instruction Result Possible causes of fault
voltage short in signal circuit Less than
03V. !- Short circuit to voltage between:ITiptronic
.Ignition off control module wiring harness
.Pull wiring harness plug off of: plug
Tiptronic control module (wiring harness side) terminals 85, 86
and and
DME control module DMEcontrol module wiring harness
.Ignition on plug II
.Measure voltage between the (wiring harness side) terminals 3, 4
following terminals:
Tiptronic control module wiring harness
plug
(wiring harness side) terminals 85, 86
and
round Yes: T02
T02 Test: short to ground in signal Greater No:
:circuit than 500 -Short circuit to ground between:
kOhm Tiptronic control module wiring harness
.Ignition off plug
.Measure resistance betweenthe (wiring harness side) terminals85, 86
following terminals: and
Tiptronic control module DMEcontrol module wiring harness
wiring harnessplug (wiring harness plug II
side) (wiring harness side) terminals 3, 4
terminals 85, 86
and
'Yes:T9~
45 -D 113
!Test:INo:TOI
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