996 Carrera Group 0 Part 1 Diagnosis / PAGE 205
PSM diagnosis 911 Carrera 4 (996) · 8.15 Front right inlet solenoid valve circuit
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PSM diagnosis 911 Carrera 4 (996)
8.15 Front right inlet solenoid valve circuit
Test Work instruction Result Possible causes of fault
TOI Test: voltage short in signal circuit Less than No:
0.3 V -Short circuit to voltage between:
.Ignition off PSMcontrol module
.Pull wiring harnessplug off of: wiring harnessplug (wiring harness
PSM control module side)iterminal
and 26
PSM hydraulic unit and
.Ignition on PSMhydraulic unit
.Measure voltage betweenthe wiring harness plug (wiring harness
following terminals: side)
PSM control module terminal 2
wiring harness plug (wiring harness
side)terminal 26 Note: Check the wiring harnessfor
pinchingor chafing damage. an9
round Yes:102
TO2 Test: short to ground in signal Greater No:
circuit than 500 -Short circuit to ground between:
kOhm PSMcontrol module
.Ignition off wiring harness plug (wiring harness side)
.Measure resistance betweenthe terminal 26
following terminals: and
PSM control module PSM hydraulic unit
wiring harnessplug (wiring harness wiring harnessplug (wiring harnessside)
side)terminal 26 terminal 2
and
ground Note: Check the wiring harness for!
~Yes:T03 pinching or chafing damage.
45 -D 142
I
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