Operation CHARM
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1998
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RAM 3500 Van V8-360 5.9L VIN 5 Magnum
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Description and Operation
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Inputs and Outputs
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Outputs
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CCD Bus (+/-) Circuits-PCM Output
CCD Bus (+/-) Circuits-PCM Output
The
Powertrain Control Module
(PCM)
sends certain output signals through the CCD bus circuits. These signals are used to control certain instrument panel located items and to determine certain identification numbers.