996 Carrera Group 0 Part 1 Diagnosis / PAGE 187
PSM diagnosis 911 Carrera 4 (996) · Test Work instruction Result Possible causes of fa
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PSM diagnosis 911 Carrera 4 (996)
Test Work instruction Result Possible causes of fault
TO3 open circuit in signal circuit 2 kOhm No:
-Greater than 2 kOhm: Open circuit
.Measure resistance between the between:,PSM
following terminals: control module wiring harnessplug
PSM control module wiring harness (wiring harness side) terminals 13, 14
plug (wiring harness side) terminal 13 and
and plug connection X 1/4 terminals20, 21
PSM control module wiring harness and
plug (wiring harness side) terminal 14 plug connection X 2/4 terminals 16, 17
and
rear left speed sensor
terminals5, 4
-Less than 1 kOhm:
Short circuit in wiring harnessbetween:
PSMcontrol modulewiring harnessplug
(wiring harness side) terminal 13
and
PSMcontrol modulewiring harnessplug
(wiring harness side) terminal 14
Note: Disconnect plug connection X 1/4
(terminals 20, 21) and plug connection
X 2/4 (terminals 16, 17) for further
troubleshooting. Check the wiring
TO4 harness for pinching or chafing damage.
45 -D 124
Test:Iyes:
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