9000 CSE L4-2290cc 2.3L DOHC Turbo EFI (1995)
Trailer Lamps: Diagnostic Aids
General Information
Testing Methods: General
Suitable instruments for diagnosing faults in the car's electrical system are an Intelligent Saab Tester (ISAT) Scan Tool, a voltmeter and an ohmmeter.
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Use an ISAT Scan Tool or voltmeter for measuring the voltage in a circuit.
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If the voltmeter is of analogue type, it should have an internal resistance of at least 20 Megohm/V.
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Use an ISAT Scan Tool or ohmmeter for measuring the resistance of a circuit.
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The ohmmeter must not be used for taking readings on components containing semiconductors, such as control modules and time-delay relays,
