For 1990-2009 cars

DTC | Definition
--- | ---
U1128 | Loss of Serial Communications - IRC
U1255 | Generic Loss of Serial Communications for Class 2 Devices
U1300 | Class 2 Short to Ground
U1301 | Class 2 Short to Battery
B1552 | Loss of BCM Keep Alive Memory (KAM)
B1556 | BCM EEPROM Write Error
B1558 | BCM EEPROM Checksum Error
B1970 | Exterior Lamp Power Fault
B1971 | Inadvertent Power Fault
B1972 | Low Power Driver Fault
B1973 | High Power Fault
B1982 | Battery Voltage Too High
B1983 | Battery Voltage Too Low
B2470 | Daytime Running Lamps Fault
B2471 | Interior Lamp Fault
B2472 | Low-Beam Fault
B2473 | High-Beam Fault
B2476 | Park Lamp Fault