Diagnostic Aids
WARNING: This page is about a different car, the 2003 Buick Regal and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
DTC B0053 will be accompanied by another DTC, other than DTC B1000 and DTC B0051. Replace SDM only after completion of diagnostic procedure and applicable repairs.
NOTE:
For circuit number and wire color identification, see WIRING DIAGRAMS .