Operation CHARM
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Saturn
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1996
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SW2 L4-1.9L DOHC VIN 7
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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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Component Tests and General Diagnostics
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PCM Output Controls
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Quad Driver A - Output Fault (Chart 1 of 4)
Quad Driver A - Output Fault (Chart 1 of 4)
For component testing, use P1640
P1640
and/or P1641
P1641
trouble code diagnosis.