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The trailer brake control module (TBCM) monitors the system voltage (ignition voltage) to make Conditions for Running the DTC The ignition is ON. The engine speed is greater than 400 RPM. Conditions for Setting the DTC C0800 03 During initialization or when the system is inactive, the system voltage is less than 10.5 During the system operation, the system voltage is less than 9.5 volts. C0800 07 Ignition is in RUN. The system voltage is greater than 17 volts. Action Taken When the DTC Sets The trailer brake control will be disabled at the end of the current brake apply for the The Service Trailer Brake System will be displayed on the Driver Information Center Conditions for Clearing the MIL/DTC When the condition for the DTC is no longer present. The TBCM automatically clears the history DTC when a current DTC is not detected in 40 Reference Information Schematic Reference Trailer Brake Control Schematics
2008 Chevrolet Silverado 1500 2008 BRAKES Trailer Brake Controls - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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