PSM diagnosis 911 Carrera 4 (996) · 8.17 Front left inlet solenoid valve circuit

PSM diagnosis 911 Carrera 4 (996) 8.17 Front left inlet solenoid valve circuit Test Work instruction Result Possible causes of fault TOl 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) and terminal 5 PSM hydraulic unit and .Ignition on PSMhydraulic unit .Measure voltage betweenthe wiring harnessplug (wiring harness following terminals: side) PSM control module terminal 8 wiring harnessplug (wiring harness side) terminal 5 Note: Check the wiring harness for and pinching or chafing damage. round 102 Test: short to ground in signal Greater No: icircuit than 500 -Short circuit to ground between: kOhm PSMcontrol module .Ignition off wiring harnessplug (wiring harness side) .Measure resistance betweenthe terminal 5 following terminals: and PSM control module PSMhydraulic unit wiring harnessplug (wiring harness wiring harnessplug (wiring harness side) side) terminal 5 terminal 8 and ground Note: Check the wiring harness for IYes: TO3 ~hing or chafing damage. IY~s~ 45 -D 146