LEMON Manuals
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1990
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Prizm Base, 4D Hatchback, Automatic
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Testing & Diagnosis
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Engine Controls - Tests W/Codes
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Diagnostic Circuit Check
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Code 52, Knock Sensor Signal Open Or Shorted Circuit VIN 5)
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Diagnostic Aids
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Diagnostic Aids
If code is intermittent, see TESTS W/O CODES article.
Fig 1: Code 52 Circuit Diagram
Fig 2: Code 52 Flow Chart