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Buick
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1991
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LeSabre Base, 440T4/ME9
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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 - 3.8L PFI
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Diagnostic Flow Charts
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Code 38, Brake Switch Circuit
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If Code 26 is set with Code 38, see Code 26 chart.
If Code 26 is set with Code 38, see Code 26 chart.
Fig 1: Code 38, Flow Chart