9-5 Wagon (9600) L4-2.3L Turbo (B235) (1999)
Auxiliary Heater Element: Component Tests and General Diagnostics
Test Readings, Control Module Connections
Extent
The following information contain values and instructions for obtaining readings of signals and levels on the heater.
Remember
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Note the test conditions and use your common sense when judging the test results.
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Unless otherwise stated, the test readings presented are with the ignition switch in the ON position.
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First check that the control module is supplied with current and grounded.
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Then check all sensor inputs and signals from other systems.
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Finally, check the control module outputs. Remember that the test readings do not indicate whether or not the actuator is in working order.
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If any reading is not OK, consult the wiring diagram to trace the leads, connectors or components which ought to be checked more thoroughly.
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The test readings given apply to a correctly calibrated Fluke 88/97.
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The readings %(+) and ms(+) indicate the pulse ratio and pulse duration. A test instrument capable of measuring both pulse ratio and pulse
duration must be used. The + sign denotes a positive trigger pulse (TRIG+).
Connector B1