Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Saab >> 2004 >> 9-3 Linear, Standard >> Repair and Diagnosis >> Engine Performance >> TRIONIC T8 Fuel Control System >> Fault Diagnosis, General >> Testing for open/short circuits >> Testing for short circuits to ground

Testing for short circuits to ground

Fig 1: Identifying Short Circuits Wiring Diagram
G03708640Courtesy of SAAB-SCANIA OF AMERICA, INC.
Fig 2: Testing For Short Circuits To Ground
G03708641Courtesy of SAAB-SCANIA OF AMERICA, INC.
  1. Make sure the lead being tested is not under tension (e.g. remove the relevant fuse) and that any loads are disconnected.
  2. Set the multimeter for measuring ohms.
  3. Connect one test lead to a good ground and the other to the point to be tested.
  4. Carefully jiggle the wiring harness and make sure the multimeter reading shows infinite resistance (OL) all the time.
scientia non olet · About Mike's Workshop Manuals