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Buick
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2002
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Century Custom
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System Self-Diagnostics - 3.1L Engine
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Diagnostic Tests
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DTC P1380: EBTCM DTC Detected Rough Road Data Unusable
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Conditions For Running DTC
Conditions For Running DTC
The engine load is less than 8 percent.
The engine speed is less than 5000 RPM.
The vehicle speed is greater than 10 MPH.
A misfire DTC is occurring and is requesting the MIL to be illuminated.