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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 110 (Seat Heating And Cooling) >> Diagnostic Information and Procedures >> DTC B12CC, B1338, B1339, or B133A >> 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+ Terminal 10 X1 U0208 U0208 - -
B+ Terminal 7 X1 1 1 - -
Driver Heated Seat Back Temperature Sensor Signal B1338: 16 B1338: 17 B1338: 17 -
Driver Heated Seat Back Temperature Sensor Low Reference - B1338: 17 - -
Driver Heated Seat Cushion Temperature Sensor Signal B12CC: 16 B12CC: 17 B12CC: 17 -
Driver Heated Seat Cushion Temperature Sensor Low Reference - B12CC: 17 - -
Passenger Seat Back Temperature Sensor Signal B133A: 16 B133A: 17 B133A: 17 -
Passenger Seat Back Temperature Sensor Low Reference - B133A: 17 - -
Passenger Heated Seat Cushion Temperature Sensor Signal B1339: 16 B1339: 17 B1339: 17 -
Passenger Heated Seat Cushion Temperature Sensor Low Reference - B1339: 17 - -
Front Seat Heating Control Module Ground - U0208 - -
1. Passenger heated seat is inoperative