M20A-FKS (ENGINE CONTROL): RELAY: ON-VEHICLE INSPECTION; 2020 - 2022 MY Corolla Corolla Hatchback [01/2019 - 09/2022]

Last Modified: 07-31-2024	6.11:8.1.0	Doc ID: RM100000001HG6K
Model Year Start: 2020	Model: Corolla Hatchback	Prod Date Range: [01/2019 - 09/2022]
Title: M20A-FKS (ENGINE CONTROL): RELAY: ON-VEHICLE INSPECTION; 2020 - 2022 MY Corolla Corolla Hatchback [01/2019 - 09/2022]

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT NO. 2 ELECTRONIC FUEL INJECTION MAIN RELAY (EFI-MAIN NO. 2)

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
3 - 5	Battery voltage not applied between terminals 1 and 2	10 kΩ or higher
3 - 5	Battery voltage applied between terminals 1 and 2	Below 1 Ω

If the result is not as specified, replace the No. 2 electronic fuel injection main relay (EFI-MAIN NO. 2).

2. INSPECT NO. 3 ELECTRONIC FUEL INJECTION MAIN RELAY (EFI-MAIN NO. 3)

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
3 - 5	Battery voltage not applied between terminals 1 and 2	10 kΩ or higher
3 - 5	Battery voltage applied between terminals 1 and 2	Below 1 Ω

If the result is not as specified, replace the No. 3 electronic fuel injection main relay (EFI-MAIN NO. 3).

3. INSPECT ELECTRONIC DRIVER UNIT RELAY (IGN/INJ/D INJ) (for Hatchback)

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
3 - 5	Battery voltage not applied between terminals 1 and 2	10 kΩ or higher
3 - 5	Battery voltage applied between terminals 1 and 2	Below 1 Ω

If the result is not as specified, replace the electronic driver unit relay (IGN/INJ/D INJ).

4. INSPECT INJECTOR RELAY (D INJ) (for Sedan)

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
3 - 5	Battery voltage not applied between terminals 1 and 2	10 kΩ or higher
3 - 5	Battery voltage applied between terminals 1 and 2	Below 1 Ω

If the result is not as specified, replace the injector relay (D INJ).

5. INSPECT VVT RELAY (VVT)

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
3 - 5	Battery voltage not applied between terminals 1 and 2	10 kΩ or higher
3 - 5	Battery voltage applied between terminals 1 and 2	Below 1 Ω

If the result is not as specified, replace the VVT relay (VVT).