For 1990-2009 cars

DTC | Definition
--- | ---
B1552 | DTC B1552 Loss of BCM Keep Alive Memory
B1556 | DTC B1556 BCM EPROM Write Error
B1558 | DTC B1558 BCM EPROM Checksum Error
B1970 | DTC B1970 Exterior Lamp Power
B1971 | DTC B1971 Inadvertent Power
B1973 | DTC B1973 High Power Control Fault
B1982 | DTC B1982 Device Power 1 Circuit High
B1983 | DTC B1983 Device Power 1 Circuit Low
B2470 | DTC B2470 Daytime Running Lamps Fault
B2471 | DTC B2471 Interior Lamp Fault
B2472 | DTC B2472 Low Beam Fault
B2473 | DTC B2473 High Beam Fault
B2476 | DTC B2476 Parklamp Fault