996 Carrera Group 0 Part 1 Diagnosis / PAGE 211
PSM diagnosis 911 Carrera 4 (996) · 8.18 Rear right outlet solenoid valve circuit
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PSM diagnosis 911 Carrera 4 (996)
8.18 Rear right outlet solenoid valve circuit
Test Work instruction Result Possible causes of fault
TOl Test: voltage short in signal circuit Lessthan No:
0.3 V -Short circuit to voltage between:
.Ignition off PSMcontrol module
.Pull wiring harness plug off of: wiring harnessplug (wiring harness
PSM control module side)
and terminal 4
PSM hydraulic unit and
.Ignition on PSM hydraulicunit
.Measure voltage betweenthe wiring harnessplug (wiring harness
following terminals: side)terminal!!
PSM control module
wiring harnessplug (wiring harness
side)terminal 4 Note: Checkthe wiring harnessfor
and pinchingor chafing damage.
round Yes:102
T02 ITest: short to ground in signal Greater No:
circuit than 500 -Short circuit to ground between:
kOhm PSM control module
.Ignition off wiring harness plug (wiring harness side)
.Measure resistance between the terminal 4
following terminals: and
PSM control module PSM hydraulic unit
wiring harnessplug (wiring harness wiring harness plug (wiring harness side)
side)terminal 4 terminal 11
and
ground INote: Check the wiring harnessfor
TO3 pinchingor chafing damage.
45 -D 148
Yes:
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