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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 376 (Seat Heating System And Seat Cooling System) >> 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 CT5. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Number Circuit Function Short to Ground Open/High Resistance Short to Voltage Signal Performance
6640 B+ U0208 U0208 - -
6140 B+ 1 1 - -
2425 Signal B1338:16 B1338:17 B1338:17 -
2080 Low Reference - B1338:17, B12CC:17 - -
2079 Signal B12CC:16 B12CC:17 B12CC:17 -
2436 Signal B133A:16 B133A:17 B133A:17 -
2482 Low Reference - B133A:17 - -
2434 Signal B1339:16 B1339:17 B1339:17 -
2435 Low Reference - B1339:17 - -
1250 Ground - U0208 - -
1. Passenger heated seat is inoperative