Problem Symptoms Table [11/2021 - ]

HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Inspect the fuses and relays related to this system before inspecting the suspected areas below.

SFI SYSTEM

Symptom	Suspected Area	Link
Engine does not crank (Does not start)	Hybrid control system	Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ]
Engine does not crank (Does not start)	VC output circuit (ECM 5 V output)	Refer to VC Output Circuit [11/2021 - 03/2023] , or refer to VC Output Circuit [03/2023 - 03/2024] , or refer to VC Output Circuit [03/2024 - ]
No initial combustion (Does not start)	ECM power source circuit	Refer to ECM Power Source Circuit [11/2021 - ]
	VC output circuit (ECM 5 V output)	Refer to VC Output Circuit [11/2021 - 03/2023] , or refer to VC Output Circuit [03/2023 - 03/2024] , or refer to VC Output Circuit [03/2024 - ]
	Ignition system	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Fuel system	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Port fuel injector assembly	Refer to INSPECTION [11/2021 - ]
	Direct fuel injector assembly	Refer to INSPECTION [11/2021 - ]
	Fuel pump control circuit	Refer to Fuel Pump Control Circuit [11/2021 - ]
	Fuel pump (for low pressure side)	Refer to INSPECTION [11/2021 - ]
	Crankshaft position sensor	Refer to DTC P0335-11: Crankshaft Position Sensor "A" Circuit Short to Ground; DTC P0335-15: Crankshaft Position Sensor "A" Circuit Short to Battery or Open [11/2021 - 03/2023] , or refer to DTC P0335-11: Crankshaft Position Sensor "A" Circuit Short to Ground; DTC P0335-15: Crankshaft Position Sensor "A" Circuit Short to Battery or Open [03/2023 - ]
	Intake system	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Valve timing	Refer to PROCEDURE - Step 7
	EGR valve assembly	Refer to INSPECTION [11/2021 - ]
Engine cranks normally but difficult to start	ECM power source circuit	Refer to ECM Power Source Circuit [11/2021 - ]
	Throttle body with motor assembly	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Fuel (engine room side) pump assembly (for high pressure side)	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Fuel pump (for low pressure side)	Refer to INSPECTION [11/2021 - ]
	Engine coolant temperature sensor	Refer to INSPECTION [11/2021 - ]
	Fuel pump control circuit	Refer to Fuel Pump Control Circuit [11/2021 - ]
	Fuel system	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Ignition system	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Compression	Refer to PROCEDURE - Step 9
	Port fuel injector assembly	Refer to INSPECTION [11/2021 - ]
	Direct fuel injector assembly	Refer to INSPECTION [11/2021 - ]
	Crankshaft position sensor	Refer to DTC P0335-11: Crankshaft Position Sensor "A" Circuit Short to Ground; DTC P0335-15: Crankshaft Position Sensor "A" Circuit Short to Battery or Open [11/2021 - 03/2023] , or refer to DTC P0335-11: Crankshaft Position Sensor "A" Circuit Short to Ground; DTC P0335-15: Crankshaft Position Sensor "A" Circuit Short to Battery or Open [03/2023 - ]
	Intake system	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Valve timing	Refer to PROCEDURE - Step 7
	EGR valve assembly	Refer to INSPECTION [11/2021 - ]
Incomplete intermittent combustion occurs (Does not start)	Fuel system	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Fuel pump control circuit	Refer to Fuel Pump Control Circuit [11/2021 - ]
	Fuel pump (for low pressure side)	Refer to INSPECTION [11/2021 - ]
	Ignition system	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Port fuel injector assembly	Refer to INSPECTION [11/2021 - ]
	Direct fuel injector assembly	Refer to INSPECTION [11/2021 - ]
	Crankshaft position sensor	Refer to DTC P0335-11: Crankshaft Position Sensor "A" Circuit Short to Ground; DTC P0335-15: Crankshaft Position Sensor "A" Circuit Short to Battery or Open [11/2021 - 03/2023] , or refer to DTC P0335-11: Crankshaft Position Sensor "A" Circuit Short to Ground; DTC P0335-15: Crankshaft Position Sensor "A" Circuit Short to Battery or Open [03/2023 - ]
	Intake system	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Valve timing	Refer to PROCEDURE - Step 7
High engine speed	Throttle body with motor assembly	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	ECM power source circuit	Refer to ECM Power Source Circuit [11/2021 - ]
	PCV system	Refer to PROCEDURE - Step 12 [11/2021 - 03/2023] , or refer to PROCEDURE - Step 12 [03/2023 - ]
Low engine speed (Poor idle)	Fuel system	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Throttle body with motor assembly	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Port fuel injector assembly	Refer to INSPECTION [11/2021 - ]
	Direct fuel injector assembly	Refer to INSPECTION [11/2021 - ]
	Fuel pump control circuit	Refer to Fuel Pump Control Circuit [11/2021 - ]
	Fuel (engine room side) pump assembly (for high pressure side)	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	PCV system	Refer to PROCEDURE - Step 12 [11/2021 - 03/2023] , or refer to PROCEDURE - Step 12 [03/2023 - ]
	Intake system	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
Rough idle	Rough idling	Refer to Rough Idling [11/2021 - ]
	Throttle body with motor assembly	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Port fuel injector assembly	Refer to INSPECTION [11/2021 - ]
	Direct fuel injector assembly	Refer to INSPECTION [11/2021 - ]
	Fuel (engine room side) pump assembly (for high pressure side)	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Ignition system	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Air fuel ratio sensor (sensor 1)	Refer to INSPECTION [11/2021 - ]
	Air fuel ratio sensor (sensor 2)	Refer to INSPECTION [11/2021 - ]
	Mass air flow meter sub-assembly	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Manifold absolute pressure sensor	Refer to DTC P0105-11: Manifold Absolute Pressure / Barometric Pressure Sensor Circuit Short to Ground [11/2021 - 03/2023] , or refer to DTC P0105-11: Manifold Absolute Pressure / Barometric Pressure Sensor Circuit Short to Ground [03/2023 - ]
	Compression	Refer to PROCEDURE - Step 9
	Fuel pump control circuit	Refer to Fuel Pump Control Circuit [11/2021 - ]
	Fuel system	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Intake system	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Valve timing	Refer to PROCEDURE - Step 7
	EGR valve assembly	Refer to INSPECTION [11/2021 - ]
Hunting (Poor idle)	Throttle body with motor assembly	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	ECM power source circuit	Refer to ECM Power Source Circuit [11/2021 - ]
	Fuel pump control circuit	Refer to Fuel Pump Control Circuit [11/2021 - ]
	Spark plug	Refer to PROCEDURE - Step 3
	Intake system	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Drive start control	Refer to Drive Start Control [11/2021 - ]
Hesitation/Poor acceleration (Poor driveability)	Port fuel injector assembly	Refer to INSPECTION [11/2021 - ]
	Direct fuel injector assembly	Refer to INSPECTION [11/2021 - ]
	Fuel pump control circuit	Refer to Fuel Pump Control Circuit [11/2021 - ]
	Fuel (engine room side) pump assembly (for high pressure side)	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Ignition system	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Intake system	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Valve timing	Refer to PROCEDURE - Step 7
	Brake override system	Refer to Brake Override System [11/2021 - ]
	Drive start control	Refer to Drive Start Control [11/2021 - ]
Surging (Poor driveability)	Fuel pump control circuit	Refer to Fuel Pump Control Circuit [11/2021 - ]
	Fuel pump (for low pressure side)	Refer to INSPECTION [11/2021 - ]
	Spark plug	Refer to PROCEDURE - Step 3
	Port fuel injector assembly	Refer to INSPECTION [11/2021 - ]
	Direct fuel injector assembly	Refer to INSPECTION [11/2021 - ]
Engine stalls soon after starting	Fuel pump control circuit	Refer to Fuel Pump Control Circuit [11/2021 - ]
	Throttle body with motor assembly	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Crankshaft position sensor	Refer to DTC P0335-11: Crankshaft Position Sensor "A" Circuit Short to Ground; DTC P0335-15: Crankshaft Position Sensor "A" Circuit Short to Battery or Open [11/2021 - 03/2023] , or refer to DTC P0335-11: Crankshaft Position Sensor "A" Circuit Short to Ground; DTC P0335-15: Crankshaft Position Sensor "A" Circuit Short to Battery or Open [03/2023 - ]
	Ignition system	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Fuel (engine room side) pump assembly (for high pressure side)	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Intake system	Refer to ON-VEHICLE INSPECTION [11/2021 - ]
	Valve timing	Refer to PROCEDURE - Step 7
	EGR valve assembly	Refer to INSPECTION [11/2021 - ]
MIL (Malfunction Indicator Lamp) malfunction	MIL Circuit	Refer to MIL Circuit [11/2021 - ]
MIL (Malfunction Indicator Lamp) malfunction	Meter/gauge system	Refer to HOW TO PROCEED WITH TROUBLESHOOTING [11/2021 - ]
Unable/difficult to refuel	Fuel system (canister, refueling valve, roll over valve, fuel tank, etc.)	-