Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001BGZ9
Model Year Start: 2019 Model: Corolla Hatchback Prod Date Range: [06/2018 - 01/2019]
Title: M20A-FKS (ENGINE CONTROL): SFI SYSTEM: PROBLEM SYMPTOMS TABLE; 2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]

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)

Flow chart [Engine difficult to start]

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: Engine Difficult to Start

Flow chart [Engine difficult to start]

(Vehicle Control History Code: X0810, X0811 and/or X0812)

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: VEHICLE CONTROL HISTORY

Battery

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (BATTERY / CHARGING): CHARGING SYSTEM: ON-VEHICLE INSPECTION+

ST relay

2019 - 2023 MY Corolla Corolla Hatchback [06/2018 - 03/2023]; M20A-FKS (STARTING): RELAY: INSPECTION

Starter assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (STARTING): STARTER: INSPECTION

Starter signal circuit

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: Starter Signal Circuit

Smart key system (for start function)

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

VC output circuit (ECM 5 V output)

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: VC Output Circuit

Park/Neutral position switch assembly (for continuously variable transaxle models)

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; K120 / K121 (CVT): K120 PARK / NEUTRAL POSITION SWITCH: ON-VEHICLE INSPECTION

Clutch switch assembly (for manual transaxle models)

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; CLUTCH: CLUTCH PEDAL SWITCH: INSPECTION

No initial combustion (Does not start)

Immobiliser system

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

ECM power source circuit

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: ECM Power Source Circuit

VC output circuit (ECM 5 V output)

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: VC Output Circuit

Flow chart [Engine difficult to start]

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: Engine Difficult to Start

Flow chart [Engine difficult to start]

(Vehicle Control History Code: X0810, X0811 and/or X0812)

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: VEHICLE CONTROL HISTORY

Ignition system

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (ENGINE CONTROL): IGNITION SYSTEM: ON-VEHICLE INSPECTION

Fuel system

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (FUEL): FUEL SYSTEM: ON-VEHICLE INSPECTION

Port fuel injector assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (FUEL): FUEL INJECTOR (for Port Injection): INSPECTION

Direct fuel injector assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (FUEL): FUEL INJECTOR (for Direct Injection): INSPECTION

Crankshaft position sensor

2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P033511; Crankshaft Position Sensor "A" Circuit Short to Ground

Intake system

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (INTAKE / EXHAUST): INTAKE SYSTEM: ON-VEHICLE INSPECTION

Valve timing

2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P001400,P001500; Camshaft Position "B" - Timing Over-Advanced or System Performance Bank 1+

EGR valve assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (EMISSION CONTROL): EGR VALVE: INSPECTION

No. 1 valve rocker arm sub-assembly*

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (ENGINE MECHANICAL): ENGINE UNIT: COMPONENTS

Engine cranks normally but difficult to start

ECM power source circuit

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: ECM Power Source Circuit

Flow chart [Engine difficult to start]

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: Engine Difficult to Start

Flow chart [Engine difficult to start]

(Vehicle Control History Code: X0810, X0811 and/or X0812)

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: VEHICLE CONTROL HISTORY

Throttle body with motor assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (ENGINE CONTROL): THROTTLE BODY: ON-VEHICLE INSPECTION

Fuel pump assembly (for high pressure side)

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (FUEL): FUEL PUMP (for High Pressure): ON-VEHICLE INSPECTION

Fuel pump (for low pressure side)

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (FUEL): FUEL PUMP (w/ Canister Pump Module (for Double Wishbone Type Suspension)): INSPECTION

Engine coolant temperature sensor

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (ENGINE CONTROL): ENGINE COOLANT TEMPERATURE SENSOR: INSPECTION

Fuel system

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (FUEL): FUEL SYSTEM: ON-VEHICLE INSPECTION

Ignition system

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (ENGINE CONTROL): IGNITION SYSTEM: ON-VEHICLE INSPECTION

Spark plug

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (ENGINE CONTROL): IGNITION SYSTEM: ON-VEHICLE INSPECTION+

Compression

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE MECHANICAL): ENGINE: ON-VEHICLE INSPECTION+

Port fuel injector assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (FUEL): FUEL INJECTOR (for Port Injection): INSPECTION

Direct fuel injector assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (FUEL): FUEL INJECTOR (for Direct Injection): INSPECTION

Crankshaft position sensor

2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P033511; Crankshaft Position Sensor "A" Circuit Short to Ground

Intake system

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (INTAKE / EXHAUST): INTAKE SYSTEM: ON-VEHICLE INSPECTION

Valve timing

2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P001400,P001500; Camshaft Position "B" - Timing Over-Advanced or System Performance Bank 1+

EGR valve assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (EMISSION CONTROL): EGR VALVE: INSPECTION

No. 1 valve rocker arm sub-assembly*

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (ENGINE MECHANICAL): ENGINE UNIT: COMPONENTS

Incomplete intermittent combustion occurs (Does not start)

Flow chart [Engine difficult to start]

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: Engine Difficult to Start

Flow chart [Engine difficult to start]

(Vehicle Control History Code: X0810, X0811 and/or X0812)

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: VEHICLE CONTROL HISTORY

Fuel system

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (FUEL): FUEL SYSTEM: ON-VEHICLE INSPECTION

Ignition system

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (ENGINE CONTROL): IGNITION SYSTEM: ON-VEHICLE INSPECTION

Port fuel injector assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (FUEL): FUEL INJECTOR (for Port Injection): INSPECTION

Direct fuel injector assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (FUEL): FUEL INJECTOR (for Direct Injection): INSPECTION

Crankshaft position sensor

2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P033511; Crankshaft Position Sensor "A" Circuit Short to Ground

Intake system

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (INTAKE / EXHAUST): INTAKE SYSTEM: ON-VEHICLE INSPECTION

Valve timing

2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P001400,P001500; Camshaft Position "B" - Timing Over-Advanced or System Performance Bank 1+

High engine speed

Throttle body with motor assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (ENGINE CONTROL): THROTTLE BODY: ON-VEHICLE INSPECTION

ECM power source circuit

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: ECM Power Source Circuit

PCV system

2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P017100,P017200,P117000,P117B00; System Too Lean Bank 1+

Low engine speed (Poor idle)

Flow chart [Rough idling]

2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: Rough Idling

Flow chart [Rough idling]

(Vehicle Control History Code: X0821, X0822, X0823, X0824, X082A, X082D and/or X082E)

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: VEHICLE CONTROL HISTORY

Fuel system

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (FUEL): FUEL SYSTEM: ON-VEHICLE INSPECTION

Throttle body with motor assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (ENGINE CONTROL): THROTTLE BODY: ON-VEHICLE INSPECTION

Port fuel injector assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (FUEL): FUEL INJECTOR (for Port Injection): INSPECTION

Direct fuel injector assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (FUEL): FUEL INJECTOR (for Direct Injection): INSPECTION

Fuel pump assembly (for high pressure side)

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (FUEL): FUEL PUMP (for High Pressure): ON-VEHICLE INSPECTION

PCV system

2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P017100,P017200,P117000,P117B00; System Too Lean Bank 1+

Intake system

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (INTAKE / EXHAUST): INTAKE SYSTEM: ON-VEHICLE INSPECTION

Rough idle

Flow chart [Rough idling]

2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: Rough Idling

Flow chart [Rough idling]

(Vehicle Control History Code: X0821, X0822, X0823, X0824, X082A, X082D and/or X082E)

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: VEHICLE CONTROL HISTORY

Throttle body with motor assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (ENGINE CONTROL): THROTTLE BODY: ON-VEHICLE INSPECTION

Port fuel injector assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (FUEL): FUEL INJECTOR (for Port Injection): INSPECTION

Direct fuel injector assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (FUEL): FUEL INJECTOR (for Direct Injection): INSPECTION

Fuel pump assembly (for high pressure side)

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (FUEL): FUEL PUMP (for High Pressure): ON-VEHICLE INSPECTION

Ignition system

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (ENGINE CONTROL): IGNITION SYSTEM: ON-VEHICLE INSPECTION

Air fuel ratio sensor (sensor 1)

2019 - 2023 MY Corolla Corolla Hatchback [06/2018 - 03/2023]; M20A-FKS (ENGINE CONTROL): AIR FUEL RATIO SENSOR (for Sensor 1): INSPECTION

Air fuel ratio sensor (sensor 2)

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (ENGINE CONTROL): AIR FUEL RATIO SENSOR (for Sensor 2): INSPECTION

Mass air flow meter sub-assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (ENGINE CONTROL): MASS AIR FLOW METER: ON-VEHICLE INSPECTION

Manifold absolute pressure sensor

2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P010511; Manifold Absolute Pressure / Barometric Pressure Sensor Circuit Short to Ground

Compression

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE MECHANICAL): ENGINE: ON-VEHICLE INSPECTION+

Fuel system

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (FUEL): FUEL SYSTEM: ON-VEHICLE INSPECTION

Spark plug

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (ENGINE CONTROL): IGNITION SYSTEM: ON-VEHICLE INSPECTION+

Intake system

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (INTAKE / EXHAUST): INTAKE SYSTEM: ON-VEHICLE INSPECTION

Valve timing

2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P001400,P001500; Camshaft Position "B" - Timing Over-Advanced or System Performance Bank 1+

EGR valve assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (EMISSION CONTROL): EGR VALVE: INSPECTION

No. 1 valve rocker arm sub-assembly*

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (ENGINE MECHANICAL): ENGINE UNIT: COMPONENTS

Hunting (Poor idle)

Throttle body with motor assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (ENGINE CONTROL): THROTTLE BODY: ON-VEHICLE INSPECTION

ECM power source circuit

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: ECM Power Source Circuit

Flow chart [Rough idling]

2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: Rough Idling

Flow chart [Rough idling]

(Vehicle Control History Code: X0821, X0822, X0823, X0824, X082A, X082D and/or X082E)

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: VEHICLE CONTROL HISTORY

Fuel system

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (FUEL): FUEL SYSTEM: ON-VEHICLE INSPECTION

Spark plug

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (ENGINE CONTROL): IGNITION SYSTEM: ON-VEHICLE INSPECTION+

Intake system

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (INTAKE / EXHAUST): INTAKE SYSTEM: ON-VEHICLE INSPECTION

Drive start control (for continuously variable transaxle models)

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: Drive Start Control

Hesitation/Poor acceleration (Poor driveability)

Flow chart [Rough idling]

2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: Rough Idling

Flow chart [Rough idling]

(Vehicle Control History Code: X0821, X0822, X0823, X0824, X082A, X082D and/or X082E)

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: VEHICLE CONTROL HISTORY

Port fuel injector assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (FUEL): FUEL INJECTOR (for Port Injection): INSPECTION

Direct fuel injector assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (FUEL): FUEL INJECTOR (for Direct Injection): INSPECTION

Fuel system

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (FUEL): FUEL SYSTEM: ON-VEHICLE INSPECTION

Fuel pump assembly (for high pressure side)

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (FUEL): FUEL PUMP (for High Pressure): ON-VEHICLE INSPECTION

Ignition system

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (ENGINE CONTROL): IGNITION SYSTEM: ON-VEHICLE INSPECTION

Spark plug

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (ENGINE CONTROL): IGNITION SYSTEM: ON-VEHICLE INSPECTION+

Intake system

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (INTAKE / EXHAUST): INTAKE SYSTEM: ON-VEHICLE INSPECTION

Valve timing

2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P001400,P001500; Camshaft Position "B" - Timing Over-Advanced or System Performance Bank 1+

No. 1 valve rocker arm sub-assembly*

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (ENGINE MECHANICAL): ENGINE UNIT: COMPONENTS

Brake override system

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: Brake Override System

Drive start control (for continuously variable transaxle models)

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: Drive Start Control

Lack of power

Flow chart [Lack of power]

2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: Lack of Power

Flow chart [Lack of power]

(Vehicle Control History Code: X0845)

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: VEHICLE CONTROL HISTORY

Surging (Poor driveability)

Flow chart [Rough idling]

2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: Rough Idling

Flow chart [Rough idling]

(Vehicle Control History Code: X0821, X0822, X0823, X0824, X082A, X082D and/or X082E)

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: VEHICLE CONTROL HISTORY

Fuel system

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (FUEL): FUEL SYSTEM: ON-VEHICLE INSPECTION

Spark plug

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (ENGINE CONTROL): IGNITION SYSTEM: ON-VEHICLE INSPECTION+

Port fuel injector assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (FUEL): FUEL INJECTOR (for Port Injection): INSPECTION

Direct fuel injector assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (FUEL): FUEL INJECTOR (for Direct Injection): INSPECTION

No. 1 valve rocker arm sub-assembly*

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (ENGINE MECHANICAL): ENGINE UNIT: COMPONENTS

Engine stalls soon after starting

Flow chart [Engine stalls]

2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: Engine Stalls

Flow chart [Engine stalls]

(Vehicle Control History Code: X0800 and/or X0803)

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: VEHICLE CONTROL HISTORY

Fuel system

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (FUEL): FUEL SYSTEM: ON-VEHICLE INSPECTION

Throttle body with motor assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (ENGINE CONTROL): THROTTLE BODY: ON-VEHICLE INSPECTION

Crankshaft position sensor

2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P033511; Crankshaft Position Sensor "A" Circuit Short to Ground

Ignition system

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (ENGINE CONTROL): IGNITION SYSTEM: ON-VEHICLE INSPECTION

Fuel pump assembly (for high pressure side)

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (FUEL): FUEL PUMP (for High Pressure): ON-VEHICLE INSPECTION

Intake system

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (INTAKE / EXHAUST): INTAKE SYSTEM: ON-VEHICLE INSPECTION

Valve timing

2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P001400,P001500; Camshaft Position "B" - Timing Over-Advanced or System Performance Bank 1+

EGR valve assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (EMISSION CONTROL): EGR VALVE: INSPECTION

Engine stalls soon after slow down

Flow chart [Engine stalls]

2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: Engine Stalls

Flow chart [Engine stalls]

(Vehicle Control History Code: X0800 and/or X0803)

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: VEHICLE CONTROL HISTORY

Port fuel injector assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (FUEL): FUEL INJECTOR (for Port Injection): INSPECTION

Direct fuel injector assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (FUEL): FUEL INJECTOR (for Direct Injection): INSPECTION

Throttle body with motor assembly

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (ENGINE CONTROL): THROTTLE BODY: ON-VEHICLE INSPECTION

ECM

2019 MY Corolla Corolla Hatchback [06/2018 - 01/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: TERMINALS OF ECM

Crankshaft position sensor

2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P033511; Crankshaft Position Sensor "A" Circuit Short to Ground

Ignition system

2019 - 2025 MY Corolla Corolla Hatchback [06/2018 -        ]; M20A-FKS (ENGINE CONTROL): IGNITION SYSTEM: ON-VEHICLE INSPECTION

MIL (Malfunction Indicator Lamp) malfunction

MIL Circuit

2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (ENGINE CONTROL): SFI SYSTEM: MIL Circuit

Meter/Gauge system

2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

Unable/difficult to refuel

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

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HINT:

*: Check "Fuel Cut Elapsed Time" in the Data List. If the elapsed time is over 0 sec, then the engine speed is high (the engine speed at which fuel cut occurs + 500 rpm or more). In this situation, there is a possibility that a No. 1 valve rocker arm sub-assembly will become loose and malfunction, check that the No. 1 valve rocker arm sub-assemblies are properly installed.

Click here 2019 - 2022 MY Corolla Corolla Hatchback [06/2018 - 09/2022]; M20A-FKS (ENGINE MECHANICAL): ENGINE UNIT: COMPONENTS