Engine - Dynamic Oil Pressure Warning System Diagnostics
Group: 17Number: 91-01
Date: February 28, 1991
Subject:
Dynamic Oil Pressure Warning System,
Troubleshooting
Model(s):
Jetta 1990-1991 m.y.
Dynamic oil pressure warning system, troubleshooting
Note
Always refer to appropriate wiring diagram.
Test conditions
^ engine oil level OK
^ tachometer, oil pressure switches OK
Tools required
^ Multimeter Fluke 83 (US 1119)
^ test box V.A.G 1598 with adaptor 1598/8
System operation
Ignition ON, engine OFF
^ warning LED in instrument cluster flashes IF oil pressure switch 0.3 bar (4.4 psi) (F22) OK
Ignition ON, engine at idle
^ warning LED in instrument cluster flashes when oil pressure drops below 0.3 bar (4.4 psi) (F22)
Ignition ON, engine speed over 2050 RPM
^ LED flashes at oil pressure below
1.8 bar (25.0 psi) (F1)
^ audio warning sounds after approximately
3.0 second delay
^ audio/visual warning continues until oil pressure increases to 1.8 bar (25.0 psi) (F1) or ignition is turned off
^ RPM tolerance +/- 100
Diagnostic Charts
