Action Taken When the DTC Sets
WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
B144B 01, B144B 04
No action is taken.
B144B 02
The ignition main relays are deactivated when the fault is set. After 100 ms, the ignition main (underhood) and ignition main (rear body) relays will be activated. If the fault is still set, the relays will be deactivated. The ignition main (underhood) and ignition main (rear body) relays will again be activated after 100 ms. If this also results in a fault, the ignition main (underhood) and ignition main (rear body) relays will be deactivated until a new ignition request is received.