Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001GEG6
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 -           ]
Title: 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: BASIC INSPECTION; 2020 - 2025 MY Corolla Corolla HV [01/2019 -        ]

BASIC INSPECTION

CAUTION / NOTICE / HINT

When a malfunction is not confirmed by the DTC check, troubleshooting should be carried out for all circuits considered to be possible causes of the problem. In many cases, by carrying out the basic engine check shown in the following procedure, the location of the problem can be found quickly and efficiently. Therefore, using this check is essential when troubleshooting the engine.

PROCEDURE

1.

CHECK AUXILIARY BATTERY VOLTAGE

NOTICE:

Carry out this check with the engine stopped and the power switch off.

Result

Proceed to

11 V or higher

OK

Below 11 V

NG

NG

CHARGE OR REPLACE AUXILIARY BATTERY

OK

2.

CHECK WHETHER ENGINE CRANKS

NG

PROCEED TO PROBLEM SYMPTOMS TABLE 2020 MY Corolla Corolla HV [01/2019 - 04/2020]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: PROBLEM SYMPTOMS TABLE 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: PROBLEM SYMPTOMS TABLE 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: PROBLEM SYMPTOMS TABLE

OK

3.

CHECK WHETHER ENGINE STARTS

NG

GO TO STEP 6

OK

4.

CHECK AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY

(a) Visually check that the air cleaner filter element sub-assembly is not excessively contaminated with dirt or oil.

NG

REPLACE AIR CLEANER FILTER ELEMENT SUB-ASSEMBLY

OK

5.

CHECK IDLE SPEED

(a) Check the engine idle speed.

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

NG

PROCEED TO PAGE AND CONTINUE TO TROUBLESHOOT

OK

6.

CHECK FUEL PRESSURE

(a) Check the fuel pressure.

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (FUEL): FUEL SYSTEM: ON-VEHICLE INSPECTION+ 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; 2ZR-FXE (FUEL): FUEL SYSTEM: ON-VEHICLE INSPECTION+

NG

PROCEED TO PAGE AND CONTINUE TO TROUBLESHOOT

OK

7.

CHECK FOR SPARK

(a) Perform a spark test.

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

OK

PROCEED TO PROBLEM SYMPTOMS TABLE 2020 MY Corolla Corolla HV [01/2019 - 04/2020]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: PROBLEM SYMPTOMS TABLE 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: PROBLEM SYMPTOMS TABLE 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: PROBLEM SYMPTOMS TABLE

NG

PROCEED TO PAGE AND CONTINUE TO TROUBLESHOOT