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Buick
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2003
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LeSabre Custom, 4T65E/M15
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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 - 3.8L
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Diagnostic Tests
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DTC P0719: TCC Brake Switch Circuit - Low Input
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Test Description
Test Description
The numbers below refer to the step numbers in the diagnostic procedures.
6
This step isolates the fault between the TCC brake switch and the harness.