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Chevrolet
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2004
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Optra Base, Automatic
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Repair and Diagnosis
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Brakes
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Traction Control
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Anti-Lock Brake System
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Diagnostic Information and Procedures
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No Communication with Electronic Brake Control Module
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Conditions for Setting the DTC
Conditions for Setting the DTC
The battery is defective.
There is a defective ground connection.
A connector is damaged.
A wire is broken or shorted.
A fuse is blown.
The ignition switch is malfunctioning.