CUSTOMER CONCERN Following collision repairs and replacement of the brake-booster pump, DTCs C1252, C1253, C1256, C1345 and C1465 remain stored. CAUSE Accumulator pressure was low because air remained in the electronically controlled brake hydraulic system. CORRECTION Perform the scan-tool-assisted brake bleeding procedure, clear C1252, C1253, C1256, C1345 and C1465, and verify accumulator pressure and brake operation.