Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001GEGD
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 - 04/2020]
Title: 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: PROBLEM SYMPTOMS TABLE; 2020 MY Corolla Corolla HV [01/2019 - 04/2020]

PROBLEM SYMPTOMS TABLE

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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): HOW TO PROCEED WITH TROUBLESHOOTING

VC output circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: VC Output Circuit

No initial combustion (Does not start)

ECM power source circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: ECM Power Source Circuit

VC output circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: VC Output Circuit

Crankshaft position sensor

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): CRANKSHAFT POSITION SENSOR: INSPECTION

Fuel injector circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: Fuel Injector Circuit

Ignition system

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (ENGINE CONTROL): IGNITION SYSTEM: ON-VEHICLE INSPECTION

Fuel pump control circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: Fuel Pump Control Circuit

Fuel pump (w/ Canister Pump Module)

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (FUEL): FUEL PUMP (w/ Canister Pump Module): INSPECTION

Fuel pump (w/o Canister Pump Module)

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (FUEL): FUEL PUMP (w/o Canister Pump Module): INSPECTION

Valve timing

2020 MY Corolla Corolla HV [01/2019 - 04/2020]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: P001100,P001200; Camshaft Position "A" - Timing Over-Advanced or System Performance Bank 1+

Engine cranks normally but difficult to start

Fuel pump control circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: Fuel Pump Control Circuit

Fuel pump (w/ Canister Pump Module)

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (FUEL): FUEL PUMP (w/ Canister Pump Module): INSPECTION

Fuel pump (w/o Canister Pump Module)

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (FUEL): FUEL PUMP (w/o Canister Pump Module): INSPECTION

Engine coolant temperature sensor

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (ENGINE CONTROL): ENGINE COOLANT TEMPERATURE SENSOR: INSPECTION

Ignition system

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (ENGINE CONTROL): IGNITION SYSTEM: ON-VEHICLE INSPECTION

Compression

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (ENGINE MECHANICAL): ENGINE: ON-VEHICLE INSPECTION+

Fuel injector assembly

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (FUEL): FUEL INJECTOR: INSPECTION

Fuel injector circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: Fuel Injector Circuit

Intake system

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (INTAKE / EXHAUST): INTAKE SYSTEM: ON-VEHICLE INSPECTION

Throttle body assembly

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (ENGINE CONTROL): THROTTLE BODY: INSPECTION

PCV valve and hose

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (EMISSION CONTROL): PCV VALVE: COMPONENTS

EGR valve assembly

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (EMISSION CONTROL): EGR VALVE: INSPECTION

ECM power source circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: ECM Power Source Circuit

Incomplete intermittent combustion occurs (Does not start)

Fuel pump control circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: Fuel Pump Control Circuit

Fuel pump (w/ Canister Pump Module)

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (FUEL): FUEL PUMP (w/ Canister Pump Module): INSPECTION

Fuel pump (w/o Canister Pump Module)

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (FUEL): FUEL PUMP (w/o Canister Pump Module): INSPECTION

Fuel line

-

Ignition system

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (ENGINE CONTROL): IGNITION SYSTEM: ON-VEHICLE INSPECTION

Fuel injector circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: Fuel Injector Circuit

EGR valve assembly

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (EMISSION CONTROL): EGR VALVE: INSPECTION

ECM power source circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: ECM Power Source Circuit

Crankshaft position sensor

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): CRANKSHAFT POSITION SENSOR: INSPECTION

Valve timing

2020 MY Corolla Corolla HV [01/2019 - 04/2020]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: P001100,P001200; Camshaft Position "A" - Timing Over-Advanced or System Performance Bank 1+

High engine speed

Throttle body assembly

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (ENGINE CONTROL): THROTTLE BODY: INSPECTION

Intake system

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (INTAKE / EXHAUST): INTAKE SYSTEM: ON-VEHICLE INSPECTION

ECM power source circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: ECM Power Source Circuit

Engine coolant temperature sensor

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (ENGINE CONTROL): ENGINE COOLANT TEMPERATURE SENSOR: INSPECTION

PCV valve and hose

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (EMISSION CONTROL): PCV VALVE: COMPONENTS

Low engine speed (Poor idle)

Throttle body assembly

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (ENGINE CONTROL): THROTTLE BODY: INSPECTION

Fuel pump control circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: Fuel Pump Control Circuit

Fuel pump (w/ Canister Pump Module)

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (FUEL): FUEL PUMP (w/ Canister Pump Module): INSPECTION

Fuel pump (w/o Canister Pump Module)

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (FUEL): FUEL PUMP (w/o Canister Pump Module): INSPECTION

Intake system

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (INTAKE / EXHAUST): INTAKE SYSTEM: ON-VEHICLE INSPECTION

PCV valve and hose

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (EMISSION CONTROL): PCV VALVE: COMPONENTS

Rough idle

Rough idling

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: Rough Idling

Compression

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (ENGINE MECHANICAL): ENGINE: ON-VEHICLE INSPECTION+

Ignition system

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (ENGINE CONTROL): IGNITION SYSTEM: ON-VEHICLE INSPECTION

Fuel injector circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: Fuel Injector Circuit

ECM power source circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: ECM Power Source Circuit

Fuel pump control circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: Fuel Pump Control Circuit

Fuel pump (w/ Canister Pump Module)

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (FUEL): FUEL PUMP (w/ Canister Pump Module): INSPECTION

Fuel pump (w/o Canister Pump Module)

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (FUEL): FUEL PUMP (w/o Canister Pump Module): INSPECTION

Fuel line

-

Throttle body assembly

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (ENGINE CONTROL): THROTTLE BODY: INSPECTION

Valve timing

2020 MY Corolla Corolla HV [01/2019 - 04/2020]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: P001100,P001200; Camshaft Position "A" - Timing Over-Advanced or System Performance Bank 1+

Intake system

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (INTAKE / EXHAUST): INTAKE SYSTEM: ON-VEHICLE INSPECTION

PCV valve and hose

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (EMISSION CONTROL): PCV VALVE: COMPONENTS

Air fuel ratio sensor

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): AIR FUEL RATIO SENSOR: INSPECTION

Heated oxygen sensor

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (ENGINE CONTROL): HEATED OXYGEN SENSOR: INSPECTION

Mass air flow meter sub-assembly

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): MASS AIR FLOW METER: ON-VEHICLE INSPECTION

Manifold absolute pressure sensor

2020 MY Corolla Corolla HV [01/2019 - 04/2020]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: P010511; Manifold Absolute Pressure / Barometric Pressure Sensor Circuit Short to Ground

Knock control sensor

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (ENGINE CONTROL): KNOCK SENSOR: INSPECTION

EGR valve assembly

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (EMISSION CONTROL): EGR VALVE: INSPECTION

Hunting (Poor idle)

PCV valve and hose

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (EMISSION CONTROL): PCV VALVE: COMPONENTS

Air fuel ratio sensor

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): AIR FUEL RATIO SENSOR: INSPECTION

Mass air flow meter sub-assembly

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): MASS AIR FLOW METER: ON-VEHICLE INSPECTION

Drive start control

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): Drive Start Control

Hesitation/Poor acceleration (Poor driveability)

Fuel line

-

Fuel pump (w/ Canister Pump Module)

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (FUEL): FUEL PUMP (w/ Canister Pump Module): INSPECTION

Fuel pump (w/o Canister Pump Module)

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (FUEL): FUEL PUMP (w/o Canister Pump Module): INSPECTION

Valve timing

2020 MY Corolla Corolla HV [01/2019 - 04/2020]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: P001100,P001200; Camshaft Position "A" - Timing Over-Advanced or System Performance Bank 1+

Mass air flow meter sub-assembly

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): MASS AIR FLOW METER: ON-VEHICLE INSPECTION

Throttle body assembly

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (ENGINE CONTROL): THROTTLE BODY: INSPECTION

Knock control sensor

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (ENGINE CONTROL): KNOCK SENSOR: INSPECTION

Brake override system

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): Brake Override System

Drive start control

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): Drive Start Control

Surging (Poor driveability)

Fuel line

-

Fuel pump control circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: Fuel Pump Control Circuit

Fuel pump (w/ Canister Pump Module)

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (FUEL): FUEL PUMP (w/ Canister Pump Module): INSPECTION

Fuel pump (w/o Canister Pump Module)

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (FUEL): FUEL PUMP (w/o Canister Pump Module): INSPECTION

Ignition system

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (ENGINE CONTROL): IGNITION SYSTEM: ON-VEHICLE INSPECTION

Fuel injector assembly

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (FUEL): FUEL INJECTOR: INSPECTION

Engine stalls soon after starting

Mass air flow meter sub-assembly

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): MASS AIR FLOW METER: ON-VEHICLE INSPECTION

Intake system

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (INTAKE / EXHAUST): INTAKE SYSTEM: ON-VEHICLE INSPECTION

Fuel pump control circuit

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: Fuel Pump Control Circuit

Manifold absolute pressure sensor

2020 MY Corolla Corolla HV [01/2019 - 04/2020]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: P010511; Manifold Absolute Pressure / Barometric Pressure Sensor Circuit Short to Ground

Fuel line

-

Valve timing

2020 MY Corolla Corolla HV [01/2019 - 04/2020]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: P001100,P001200; Camshaft Position "A" - Timing Over-Advanced or System Performance Bank 1+

EGR valve assembly

2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (EMISSION CONTROL): EGR VALVE: INSPECTION

Unable/difficult to refuel (w/ Canister Pump Module)

Fuel system (canister, refueling valve, roll over valve, fuel tank, etc.)

-