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Home >> Cadillac >> 2017 >> CTS Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Object Detection System And Pedestrian Protection System >> Diagnostic Information and Procedures >> DTC B127B: Rearview Camera Input Signal Circuit Missing Reference >> Diagnostic Fault Information
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Diagnostic Fault Information

Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Ignition B127B 2B, 1 B127B 2B, 1 - -
Backup Signal B127B 2B, 1 B127B 2B, 1 - -
Camera Module signal (+) B127B 2B, 3 B127B 2B, 1 B127B 2B, 2 -
Camera Module signal (-) B127B 2B, 3 B127B 2B, 1 B127B 2B, 1 -
Ground - B127B 2B, 1 - -
Shield - 3 - -
1. Rear Vision Camera Inoperative
2. Rear Vision Camera Image Always Displayed
3. Poor Quality Image