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Circuit/System Description The User Gain Switch consists of 2 control buttons: Gain Up, and Gain Down. The output signal The TBCM monitors the circuit fault for User Gain Switch input for faults that includes short to The TBCM also monitors the input signal validity from the User Gain Switch. Conditions for Running the DTC The system voltage is in the range of 9.5 - 17 volts. The module is powered up and completes initialization. Conditions for Setting the DTC DTC C1118 will set as current DTC, if one of the following conditions is true for more then 1 The TBCM detects an open in the user gain switch circuit. The TBCM detects short to ground in the user gain switch circuit. The TBCM detects short to battery positive in the user gain switch circuit. DTC C1118 08 will set as current, if one of the following cases is true: The TBCM detects the user gain switch is stuck before the ignition is on, and continuously The TBCM detects the user gain switch is stuck continuously after ignition was turn on for 5 Action Taken When the DTC Sets Circuit Short to Ground High Resistance Open Short to Voltage Signal Performance TBCM User Gain switch C1118 - C1118 C1118 C1118 08 TBCM Ground Circuit - - C1118 - -
2008 Chevrolet Silverado 1500 2008 BRAKES Trailer Brake Controls - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
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