996 Carrera Group 0 Part 1 Diagnosis / PAGE 190
Test instruction Result Possible causes of fault · TO3 Test: open circuit in signal circuit
Read extracted page text
OCR can contain errors. Check the original page image for exact wording, warnings and specifications.
911 Carrera 4 (996) PSM diagnosis
Test instruction Result Possible causes of fault
TO3 Test: open circuit in signal circuit .2 kOhm No:
-Greater than 2 kOhm: Open circuit
.Measure resistancebetween the between:
following terminals: PSMcontrol module wiring harnessplug
PSM control modulewiring harness (wiring harness side) terminals 11, 12
plug (wiring harness side) terminal 11 and
and rear right speed sensor
PSM control module wiring harness terminals 5, 4
plug (wiring harness side)terminal 12
-Less than 1 kOhm:
Short circuit in wiring harness between:
iPSM control module wiring harness plugI
(wiring harness side) terminal 11
and
PSM control module wiring harness plug
(wiring harness side) terminal 12
Note: Disconnect plug connection X 1/4
(terminals 18, 19) and plug connection
X 2/4 (terminals 18, 19) for furthertroubleshooting.
Check the wiring
Yes: 104 harness for pinching or chafing damage.
TO4 Test: component Less than No:
0.1 V -PSM control module faulty
.Set the measuringrange to
alternatingvoltage on the multimeter.
.Vehicle jacked up and rear right wheel
turned slowly by hand
.Measure voltage betweenthe
following terminals:
PSM control modulewiring harness
plug (wiring harness side)terminal 11
and
PSM control modulewiring harness
plug (wiring harnessside}_terminaI12 Yes: 105
45 -D 127
I!Work
This is a source reference. Confirm exact model applicability in the original material.