Test readings, control module connections
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Test readings, control module connections
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The following pages contain values and instructions for measuring signals and levels on the ECD U2P control module.
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Note the test readings, use common sense when assessing the results of the tests.
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The specified values are with the ignition in the ON position unless otherwise stated.
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First, make sure the control module is supplied with power and grounded.
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Then, check all the 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 the actuator is working.
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If any of the test readings are incorrect, use the wiring diagram to determine which lead, connector or component should be checked further.
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The specified test values apply for a Fluke 88/97.
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The test readings % (+) and ms (+) signify the pulse ratio and pulse length of the signal respectively. A test instrument capable of measuring pulse ratio and pulse width must be used. The sign indicates a positive trigger pulse, TRIG+.
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>= greater than; <= less than;
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= approximately equal to; ∼= alternating current
Pins without further comments have no connection. (LP: LOGIC PROBE P = select pulse; p = visible pulses).
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Pin
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Cable colour
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Component/function
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In/Out
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Test conditions
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Across
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Test reading
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See
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1
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2
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3
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4
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5
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6
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7
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8
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9
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10
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