9-3 Viggen Convertible (9400) L4-2.3L Turbo (B235) HO (2001)
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1. Apply the load.
2. Set the multimeter to voltage measurement and connect the minus cable to a reliable grounding point.
3. Connect the positive cable of the instrument to the point where the voltage is being tested.
4. When testing the output side of a switch/control module, it is best to start testing from the component and then gradually work your way towards
the load.
The voltage reading will cease as the location of the open circuits is passed.
5. When testing the input side of a switch/control module, it is best to start testing closes to the power source (often a fuse) and then gradually work
your way towards the switch/control module/consumer.
The voltage reading will cease as the location of the open circuits is passed.
Measuring resistance to check for open circuits
