9-3 Viggen Coupe (9400) L4-2.3L Turbo (B235) HO (1999)
Alarm Module: Testing and Inspection
Test Readings, Control Module Connections
Scope
Values and instructions for measuring voltages on the control modules will be found under the headings in the respective sections.
Remember
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Note the test conditions and use common sense when assessing the test result.
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The measuring values shown are with the ignition ON, unless otherwise stated.
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First check that the control module has a power supply and is grounded.
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Then check all sensor inputs and signals from other systems.
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Lastly, check the control module outputs. Remember that the measured values do not tell us whether or not the control module is functioning.
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If any reading is not OK, consult the wiring diagram to trace the leads, connectors or components which should be checked more thoroughly.
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The specified test readings refer to those obtained with a calibrated Fluke 88/97.
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Test readings in %(+) and ms(+) show the pulse ratio and pulse duration of the signal. A test instrument capable of giving pulse ratio and pulse
duration readings must be used. The sign indicates a positive trigger pulse, TRIG+.
Control Module Connections
> = greater than; < = less than; ~ = AC voltage (LP: LOGIC PROBE P = select pulse; p = visible pulses)