Test Readings, Control Module Connections

Remember:
- Unless otherwise stated, all voltage measurements should be carried out with all components connected and with the ignition switch in the Drive position.
- Readings should be taken with a Breakout box (BOB) connected between the Saab Information Display (SID) unit and its connector.
- Several voltage levels should be regarded as guiding values. Use your common sense when judging whether a particular reading is correct or not.
- If any reading is not OK, consult the wiring diagram to trace the leads, connectors or components which ought to be checked more thoroughly.