996 Carrera Group 0 Part 1 Diagnosis / PAGE 242
Test Work instruction IResult Possible causes of fault · TO3 Test: open circuit in signal circ
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Test Work instruction IResult Possible causes of fault
TO3 Test: open circuit in signal circuit
than 12 V -Open circuit between:
.Ignition on PSMcontrol module
.PSM switch On actuated wiring harnessplug (wiring harness side)
.Measure voltage betweenthe terminal 5
following terminals: and
PSM control module PSM switch
wiring harness plug (wiring harness wiring harnessplug (wiring harness side)
side)terminal 86 terminal 2
and or
ground -PSM switch faulty
Note: The plug connection X 1/3
(terminal 9) is located in the wiring
harness.Checkthe wiring harness for
Yes: 104 ~g or chafio,g:damage.
T04 Test: voltage short in signal circuit Less than No:
0.3 V -Short circuit to voltage between:
.Measure voltage betweenthe PSMcontrol module
following terminals: wiring harnessplug (wiring harness side)
PSM control module terminal 44
wiring harnessplug (wiring harness and
side)terminal 44 PSMswitch
and wiring harnessplug (wiring harness side)
ground terminal 1
Note: The plug connection X 1/3
(terminal 10) is located in the wiring
harness.Check the wiring harnessfor
Yes: 105 pinchingor chafing damage.
45 -D 179
I'GreaterINo:!
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