996 Carrera Group 0 Part 1 Diagnosis / PAGE 312
Test Work instruction Result Possible causes of fault · TO3 Test: open circuit in signal circuit
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911 Carrera (996) PSM diagnosis
Test Work instruction Result Possible causes of fault
TO3 Test: open circuit in signal circuit 2 kOhm No:
-Greater than 2 kOhm: Open circuit
.Measure resistance between the between:
following terminals: PSM control module wiring harnessplug
PSM control module wiring harness (wiring harness side) terminals 14, 29
plug (wiring harness side) terminal 14 and
and plug connection X 2/4 terminals 16, 17
PSM control module wiring harness and
plug (wiring harness side) terminal 29I rear left speed sensor
terminals 5, 4
1-Less than 1 kOhm:
Short circuit in wiring harnessbetween:
PSM control module wiring harnessplug
(wiring harness side) terminal 14
and
PSM control module wiring harnessplug
(wiring harness side) terminal 29
Note: Disconnectthe plug connection X
2/4 (terminals16, 17) for further
troubleshooting. Check the wiring
Yes: TO4 harnessfor pinching or chafing dama2e,
45 -D 249
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