Operation CHARM
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Pontiac
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1987
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Grand AM V6-181 3.0L
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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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Function Selector Positions
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Power Steering Switch
Power Steering Switch
Displays status of switch. Indication may vary depending upon tool manufacturer. However, it is important that tool indicate change in status when high power steering pressure exists such as when steering is held against stop.