CUSTOMER CONCERN The engine control module stores DTC P2681-15 for the coolant-flow control circuit. CAUSE The confirmed repair identified a failed coolant flow control valve; Toyota's updated valve was specified for the condition. CORRECTION Remove and replace the failed coolant flow control valve with the updated Toyota unit, clear DTC P2681-15, and verify coolant-flow control operation.

CUSTOMER CONCERN The check-engine light is on with EVAP system DTCs P043E, P043F, P2401, P2402, and P2419. CAUSE The confirmed repair identified a failed charcoal canister assembly containing the EVAP leak-detection pump. CORRECTION Remove and replace the charcoal canister assembly, clear DTCs P043E, P043F, P2401, P2402, and P2419, and verify normal EVAP system operation.

CUSTOMER CONCERN The vehicle intermittently will not enter Ready mode even though the instrument cluster illuminates. Cycling the start switch four or five times eventually allows it to start, and no DTCs are stored. CAUSE The confirmed repair identified a failed high-voltage battery pack as the source of the intermittent no-Ready condition. CORRECTION Remove and replace the failed high-voltage battery pack and verify the vehicle enters Ready mode consistently through repeate

CUSTOMER CONCERN The fuel door intermittently will not open and the fuel tank is difficult to fill. CAUSE The charcoal canister was restricted, preventing the fuel tank from venting normally before the fuel door opened and during refueling. CORRECTION Remove and replace the restricted charcoal canister and verify the fuel door opens normally and the tank accepts fuel without restriction.

CUSTOMER CONCERN Engine will not start because the fuel pump has no power or fuel pressure, although bypassing the relay makes the pump run. CAUSE The ECM grounded the Yellow control wire at engine-room fuse-box connector 1E terminal 8 during crank, but no voltage appeared at connector 1E terminal 13. Testing confirmed failure of the integral circuit-opening relay section in the fuse box. CORRECTION Remove and replace the engine-room fuse-box relay section containing the non-

CUSTOMER CONCERN The 12-volt battery goes dead because of a 1.08-amp parasitic draw; removing engine-room junction-block fuse 13 drops the draw to 0.015 amp. CAUSE A rear reading light remained switched on and was difficult to notice, creating the parasitic load on the dome-fuse circuit. CORRECTION Switch off and correctly position the rear reading-light switch, then verify the parasitic draw remains at approximately 0.015 amp.

CUSTOMER CONCERN Remote and door-button locks do not operate, the security indicator does not flash, and the vehicle reports a smart-key/security system fault. CAUSE The door-control receiver circuit lost operation at the left-door harness connection. Manipulating the harness restored the system, and the confirmed repair identified the receiver wiring/connector as the fault. CORRECTION Repair the door-control receiver wiring and reseat the left-door harness connector, then ve

CUSTOMER CONCERN The engine has low power, and DTCs P0A0F and P3190 are stored. CAUSE Fuel-pressure testing showed pressure dropping under load even though battery voltage remained available to the fuel pump on the gray supply wire, confirming a failed fuel pump. CORRECTION Remove and replace the failed fuel pump.

CUSTOMER CONCERN The check engine light is on with oxygen-sensor circuit DTC P0136 stored. CAUSE Circuit, fuel-trim, and exhaust-leak checks confirmed a failed rear oxygen sensor at Bank 1 Sensor 2; the hybrid-control calibration also required the applicable update. CORRECTION Remove and replace the Bank 1 Sensor 2 oxygen sensor, then update the Hybrid Vehicle Control ECU with the applicable calibration.

CUSTOMER CONCERN The check engine and hybrid warning lights are on with DTC P0A80 stored. CAUSE Battery-block voltage testing confirmed excessive voltage variation caused by deterioration inside the high-voltage battery pack. CORRECTION Remove and replace the high-voltage hybrid battery pack.

CUSTOMER CONCERN The hybrid warning light is on with inverter-cooling DTC P0A93-346 stored. CAUSE The inverter coolant reservoir was full, but active testing confirmed that the inverter water pump was not circulating coolant. CORRECTION Remove and replace the inverter water pump. Refill and bleed the inverter cooling circuit.

CUSTOMER CONCERN The vehicle will not crank or enter READY mode after collision repair, and DTC P0A0D is stored. CAUSE Interlock-circuit testing confirmed that the battery service-plug interlock switch was not completing the required ground path. CORRECTION Remove and replace the battery service-plug interlock switch and fully seat the high-voltage service plug.

CUSTOMER CONCERN Customer states the engine barely moves when attempting to start and cannot be turned manually. DTCs P3190, P0A0F, P0A80, P3000 and P3147 are stored. CAUSE Separating the engine from the transaxle confirmed the hybrid automatic transaxle was mechanically locked. CORRECTION Remove and replace hybrid automatic transaxle. Clear powertrain and hybrid-system DTCs and verify normal engine cranking and vehicle operation.

CUSTOMER CONCERN Customer states the air conditioning does not operate. DTC B1476 is stored. CAUSE High-voltage compressor testing confirmed an internal short in the electric air-conditioning compressor. CORRECTION Remove and replace electric air-conditioning compressor. Evacuate and recharge the refrigerant system, clear DTC B1476 and verify cooling operation.

CUSTOMER CONCERN Customer states the replacement brake actuator pump will not run or build pressure. DTCs C1246, C1364 and C1365 are stored, and accumulator pressure reads zero. CAUSE The hydraulic system had no accumulator pressure after actuator installation, preventing normal pump control until pressure was established and the service routine completed. CORRECTION Power brake-pump motor to establish accumulator pressure, perform complete ABS bleed and linear-valve relearn,

CUSTOMER CONCERN Customer states the 12-volt battery is not charging. DTCs P0A08-264, P0AE6 and P2519 are stored, and battery voltage falls from 12.53 volts with the vehicle in READY mode. CAUSE DC/DC converter power and ground testing confirmed the converter was not producing charging voltage for the auxiliary battery. CORRECTION Remove and replace DC/DC converter. Clear DTCs and verify stable 12-volt charging voltage in READY mode.

CUSTOMER CONCERN Customer states the check-hybrid-system warning is on and DTC P0A80 is stored. CAUSE Hybrid-battery voltage testing found more than a 0.5-volt difference between battery blocks, confirming high-voltage battery deterioration. CORRECTION Remove and replace high-voltage battery pack. Clear hybrid-system DTCs.

CUSTOMER CONCERN Customer states the vehicle will not enter READY mode or crank after collision damage. DTC P0A0D is stored. CAUSE The hybrid ECU did not receive the required ground through the high-voltage interlock circuit, confirming an open battery service-plug interlock switch. CORRECTION Secure or remove and replace battery service plug interlock as required. Clear DTC P0A0D and verify READY-mode operation.