Measure values, control module connections, SID
| Measure values, control module connections, SID |
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Below the headings, values and directions can be found for measuring voltage levels of the SID unit.
| Keep in mind |
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Note the measuring conditions, use common sense when considering the measurement results.
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The values presented are with ignition ON if nothing else is stated.
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First check that the control module is supplied with power and that it is grounded.
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Then check all the inputs and signals from other systems.
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Finally, check the control module outputs. Remember that the measured values will not indicate if the switch device is functional.
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If any measured value is incorrect, use the wiring diagram to diagnose which leads, connections or components that should be checked further.
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Given values refer to calibrated Fluke 88/97.
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The measured values %(+) and ms(+) shows the pulse of the signal respective pulse length. Test instrument with pulse quotient respective pulse width measuring capacity must be used. The sign (+) indicates positive trigger pulse, TRIG+.
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>= greater than; <= less than; ~= alternating current
A pin without further comments does not have a pin connection. (LP: LOGIC PROBE P= select pulse; p= visible pulses)
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Pin nr
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Lead colour
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Component/function
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In/out
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Measuring condition
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Measure between
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Value
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See
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20
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BU/RD
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Parking heater/Auxiliary heater
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Out
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Activated
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20-1
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0 V
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Not activated
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20-1
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B+
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