Operation CHARM
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GMC Truck
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1993
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Safari Van AWD V6-262 4.3L VIN Z
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Repair and Diagnosis
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Transmission and Drivetrain
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Automatic Transmission/Transaxle
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Description and Operation
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Control Signals - Inputs
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A/C Status
A/C Status
This value represents the status of the air conditioning clutch. The PCM uses this information to control the
TCC
and line pressure.