CUSTOMER CONCERN Customer states hybrid-system warning lights are on. DTCs P0A93, P0A05 and P0A08 are stored. CAUSE No coolant movement was visible in the inverter reservoir and the inverter coolant pump did not operate, confirming loss of inverter-coolant circulation. CORRECTION Remove and replace inverter water pump. Refill and bleed inverter cooling circuit. Clear hybrid-system DTCs.

CUSTOMER CONCERN Customer states the ABS and brake warning lights are on and the ABS pump runs repeatedly. DTC C1391 is stored. CAUSE No external brake-fluid leak was found, and accumulator pressure dropped after pump shutdown, confirming internal leakage in the ABS brake actuator. CORRECTION Remove and replace ABS brake actuator assembly. Perform required actuator initialization and brake-system bleed. Clear DTC C1391.

CUSTOMER CONCERN Customer states brake pressure was lost at the right rear after rear brake and caliper replacement, and conventional bleeding did not restore the pedal. CAUSE Air remained trapped in the electronically controlled brake system, leaving insufficient hydraulic pressure for conventional bleeding. CORRECTION Use a compatible scan tool to operate the brake pump, build hydraulic pressure and perform the complete brake bleeding procedure.

CUSTOMER CONCERN Customer states the traction-control, ABS and brake warning lights are on. DTCs C1241 and C1249 are stored. CAUSE The stop-lamp input circuit did not supply battery voltage to skid-control ECU connector S39 terminal 14 on the Black wire with the brake pedal applied, confirming a failed brake light switch. CORRECTION Remove and replace brake light switch. Clear brake-system DTCs and verify stop-lamp operation.