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1986
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Astro Van M L4-151 2.5L
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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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Testing and Inspection
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Scan Tool Testing and Procedures
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Positions
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TCC - Torque Converter Clutch
TCC - Torque Converter Clutch
Indicates status of ECM command to energize
TCC
. Does not indicate that clutch is engaged, only that ECM has completed ground in clutch
solenoid
circuit.