9-3 Coupe (9400) L4-2.0L Turbo (B205) (2001)
1. Make sure there is no power being supplied to the lead to be checked (e.g. by removing the relevant fuse) and that any loads have been
disconnected.
2. Set the multimeter till ohm measurement.
3. Connect one test lead to a reliable ground and the other to the point to be checked.
4. Carefully jiggle the wiring harness and check that the multimeter shows a constant infinite value (OL).