CUSTOMER CONCERN Customer states DTC P1116 appeared two weeks after the cooling system was drained and refilled. CAUSE Air remained trapped in the coolant heat-storage circuit; this system requires scan-tool-assisted bleeding. CORRECTION Perform cooling-system air-bleed procedure with a compatible scan tool and clear DTC P1116.

CUSTOMER CONCERN Customer states the master warning and check-engine lights return after approximately 10 miles, with P0A80 and P3000 information code 123. CAUSE Road-test scan data showed excessive variation between high-voltage battery blocks; a block differed by more than 0.5 volt under load, confirming battery-pack deterioration. CORRECTION Remove and replace high-voltage battery pack. Clear hybrid-system DTCs.

CUSTOMER CONCERN Customer states there is no cabin heat and DTCs P1116, P1121 and P1122 are stored. CAUSE Active testing of the coolant heat-storage system confirmed the coolant flow-control valve position did not track commanded positions. CORRECTION Remove and replace coolant flow-control valve. Refill and bleed engine cooling system.

CUSTOMER CONCERN Customer states the hybrid warning is on and DTC P0A93 is stored. CAUSE The inverter cooling-water pump failed to circulate coolant through the inverter cooling system. CORRECTION Remove and replace inverter water pump. Refill and bleed inverter cooling circuit.