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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 189 (Data Communications - Diagnostic Information And Procedures (1 Of 3)) >> Diagnostic Information and Procedures >> DTC B1A1D (K179 Automated Driving Mapping Module) >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2022 Cadillac CT4. 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
B+ B1A1D B1A1D - -
Ignition B1A1D B1A1D - -
Ethernet Bus 3 [+] (circuit 7209) B1A1D B1A1D B1A1D -
Ethernet Bus 3 [-] (circuit 7208) B1A1D B1A1D B1A1D -
Ground - B1A1D - -