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Home >> GMC >> 2013 >> Sierra 1500 XFE >> Repair and Diagnosis >> External Pages >> Different car >> Section 2956 (Object Detection System And Pedestrian Protection System) >> Diagnostic Information and Procedures >> DTC B127B: Rearview Camera Input Signal (with IO3) >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2017 GMC Sierra 3500 HD, 2017 GMC Sierra 2500 HD, 2017 GMC Sierra 1500, 2017 Chevrolet Silverado 3500 HD, and 2017 Chevrolet Silverado 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Ignition B127B 08,1 B127B 08,1 - -
Backup Signal B127B 08,1 B127B 08,1 - -
Camera Module signal + B127B 08,1 B127B 08,1 B127B 08, 2 -
Camera Module signal - B127B 08, 3 B127B 08,1 B127B 08,1 -
Ground - B127B 08,1 - -
Shield - 3 - -
1. Rear vision camera inoperative
2. Rear vision camera image always displayed
3. Poor Quality Image