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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 376 (Seat Heating System And Seat Cooling System) >> Diagnostic Information and Procedures >> Front Heated Seat Malfunction >> 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, 1 U0208, 1 - -
6140 B+ 6 6 - -
2425 Signal 2 5 5 -
2080 Low Reference - 5 - -
2079 Signal 2 5 5 -
2077 Control 1 2, 3, 4 1 -
2078 Control 1 2, 3, 4 1 -
2432 Control 1 2, 3, 4 1 -
2436 Signal 6 9 9 -
2482 Low Reference - 9 - -
2434 Signal 6 9 9 -
2435 Low Reference - 9 - -
2479 Control 1 6, 7, 8 1 -
2480 Control 1 6, 7, 8 1 -
2481 Control 1 6, 7, 8 1 -
1250 Ground - U0208, 1 - -
1. Driver and passenger heated seats are inoperative.
2. Driver heated seat is inoperative
3. Driver seat back heat function is inoperative
4. Driver seat cushion heat function is inoperative
5. Degraded driver heated seat operation
6. Passenger heated seat is inoperative
7. Passenger seat back heat function is inoperative
8. Passenger seat cushion heat function is inoperative
9. Degraded passenger heated seat operation