Cadillac specific DTC OBD2 code: P1541 A/C High Side Over Temperature
Cadillac specific DTC OBD2 code: P1508 IAC System Low RPM
Cadillac specific DTC OBD2 code: P1526 TP Sensor Learn Not Complete
Cadillac specific DTC OBD2 code: P1542 A/C System High Pressure High Temperature
Cadillac specific DTC OBD2 code: P1509 IAC System High RPM
Cadillac specific DTC OBD2 code: P1527 Transmission Range/Pressure Switch Comparison
Cadillac specific DTC OBD2 code: P1543 A/C System Performance
Cadillac specific DTC OBD2 code: P1510 Back UP Power Supply
Cadillac specific DTC OBD2 code: P1528 Governor
Cadillac specific DTC OBD2 code: P1544 A/C Refrigerant Condition Very Low