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Volvo
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1994
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850 Turbo, 4D Sedan
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - Tests W/Codes - Non-Turbo
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Self-Diagnostic System
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Clearing Codes
Clearing Codes
Turn ignition on, with engine off. Press test button for more than 5 seconds. Release button. LED should light after 3 seconds.
Press button again for more than 5 seconds. Release button. LED should go out.