Code Enable Criteria

WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

The following must occur for DTC to run:

DTCs B1327, B1328, U1300 and U1301 must not have a current status.
Driver Door Module (DDM) must have power.
DDM must have received an input, a power door serial data message, or a Class 2 "wake up" message.
DTC will set when a door module or driver door switch assembly does not respond to DDM request within two seconds.