PSM diagnosis 911 Carrera 4 (996) · Test instruction Result Possible causes of

PSM diagnosis 911 Carrera 4 (996) Test instruction Result Possible causes of fault TOB Test: voltage short in signal circuit Less than No: 0.3 V -Short circuit to voltage between: .Ignition off PSMcontrol module .Pull wiring harness plug off of: wiring harnessplug (wiring harness side) diagnostic tester terminal 46 and and PSM control module diagnosiswiring harnessplug (wiring .Ignition on harnessside)terminal 7 .Measure voltage betweenthe and following terminals: affected terminals of all wiring harness .diagnosis wiring harnessplug (wiring plugs which are electricallyconnected harness side)terminal 7 with the correspondingwire. and ground Note: check the wiring harness forI Yes: T09 pinching or chafing damq~ TOg Test: short to ground/open circuit Greater NO: in signal circuit than 500 -Short circuit to ground between: kOhm PSM control module 8 Ignition off wiring harness plug (wiring harness side) 8 Measure resistance between the,following terminal 88 terminals: and diagnosis wiring harness plug {wiring diagnosis wiring harness plug (wiring harness side} terminal 7 harness side) terminal 7 and and ground affected terminals of all wiring harness plugs which are electrically connected with the corresponding wire. Note: check the wiring harness for !,Yes:no pinching or chafing damage. 45 -D 108 1IIWork