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Cadillac
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1987
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Cimarron V6-173 2.8L
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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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PPSW - Pump Pressure Switch
PPSW - Pump Pressure Switch
Indicates
fuel pump
feed circuit voltage. Should indicate battery voltage when engine is cranking or running.