996 Carrera Group 0 Part 1 Diagnosis / PAGE 343
PSM diagnosis 911 Carrera (996) · Test Work instruction Result Possible causes of f
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PSM diagnosis 911 Carrera (996)
Test Work instruction Result Possible causes of fault
TO3 Test: short to ground in signal Greater No:
circuit than 500 Short circuit to ground between:
kOhm PSM control module wiring harnessplug
.Ignition off (wiring harness side) terminal 20
.Measure resistance between the and
following terminals: PSM switch
PSM control module wiring harness wiring harnessplug (wiring harness
plug (wiring harness side) terminal 20 side)terminal 2
and
ground Note: Check the wiring harnessfor
Yes:104 oinchingor chafing dam~g~
TO4 open circuit in signal circuit Greater No:
than 12 V -Open circuit between:
.Ignition on PSMcontrol module
.PSM switch Off actuated wiring harness plug {wiring harness side}
.Measure voltage between the terminal 20
following terminals: and
PSM control module PSM switch
wiring harness plug (wiring harness wiring harnessplug {wiring harness side}
side) terminal 20 terminal 2
and or
ground 1-PSM switch faulty
Note: Check the wiring harness forI:
Yes: 105 Dinching or chafing damage.
45 -D 280
Test:I
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