996 Carrera Group 0 Part 1 Diagnosis / PAGE 199
PSM diagnosis 911 Carrera 4 (996) · Test Work instruction Result Possible causes of
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PSM diagnosis 911 Carrera 4 (996)
Test Work instruction Result Possible causes of fault
IrO7 open circuit in signal circuit -ess than No:
J Ohm -Open circuit between:
Pull wiring harnessplug off of: Relay for return pump socket terminal 8
PSM control module and
Measureresistance betweenthe PSM control module
following terminals: wiring harness plug (wiring harness side)
PSM control module terminal 20
wiring harness plug (wiring harness side)
terminal 20
and
relay for return pump socket
terminal 8 IYes: EO!
1EOl 1-Relayfor return pump faulty I
45 -D 136
IITest:
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