CUSTOMER CONCERN After engine installation, the engine runs only while a scan tool is connected and DTCs P0032, C1259, C1310, and U0100 are present. CAUSE The D1 engine-control-module ground at the valve cover was loose, interrupting the ECM ground path. CORRECTION Tighten and secure the D1 ECM ground connection at the valve cover.

CUSTOMER CONCERN Check Hybrid System warning is on with P0A80, P3000, C1259, and C1310. CAUSE Confirmed failed high-voltage hybrid battery pack. CORRECTION Remove and replace the high-voltage hybrid battery pack, clear DTCs, and verify battery block voltages and hybrid-system operation.