Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM10000000255U5
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [09/2022 -           ]
Title: G16E-GTS (ENGINE CONTROL): SFI SYSTEM: P020113-P020313,P062D13; Cylinder 1 Injector "A" Circuit Open; 2023 - 2025 MY GR Corolla [09/2022 -        ]

DTC

P020113

Cylinder 1 Injector "A" Circuit Open

DTC

P020213

Cylinder 2 Injector "A" Circuit Open

DTC

P020313

Cylinder 3 Injector "A" Circuit Open

DTC

P062D13

Fuel Injector Driver Circuit Performance Bank 1 Circuit Open

DESCRIPTION

The D-4S system has two fuel injection systems. One is an in-cylinder direct injection system that directly injects pressurized fuel into the combustion chamber. The other is an intake port injection system. The ECM determines which fuel injection system to use in accordance with the engine conditions. The direct injection system uses an injector driver (EDU) built into the ECM to rapidly operate the direct fuel injector assemblies. It converts injection request signals from the ECM to high-voltage and high-current injector-drive signals that drive the direct fuel injector assemblies.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Note

P020113

Cylinder 1 Injector "A" Circuit Open

Either of following conditions is met (1 trip detection logic):

  • Short to +B in direct fuel injector assembly (No. 1 cylinder) circuit for 40 times or more.
  • Open or short to ground in direct fuel injector assembly (No. 1 cylinder) circuit for 20 times or more.
  • Direct fuel injector assembly (No. 1 cylinder) circuit current reaches the high limit for 20 times or more.
  • Open or short in direct fuel injector assembly (No. 1 cylinder) circuit
  • Direct fuel injector assembly (No. 1 cylinder)
  • EDU relay
  • ECM

Comes on

SAE Code: P0201

P020213

Cylinder 2 Injector "A" Circuit Open

Either of following conditions is met (1 trip detection logic):

  • Short to +B in direct fuel injector assembly (No. 2 cylinder) circuit for 40 times or more.
  • Open or short to ground in direct fuel injector assembly (No. 2 cylinder) circuit for 20 times or more.
  • Direct fuel injector assembly (No. 2 cylinder) circuit current reaches the high limit for 20 times or more.
  • Open or short in direct fuel injector assembly (No. 2 cylinder) circuit
  • Direct fuel injector assembly (No. 2 cylinder)
  • EDU relay
  • ECM

Comes on

SAE Code: P0202

P020313

Cylinder 3 Injector "A" Circuit Open

Either of following conditions is met (1 trip detection logic):

  • Short to +B in direct fuel injector assembly (No. 3 cylinder) circuit for 40 times or more.
  • Open or short to ground in direct fuel injector assembly (No. 3 cylinder) circuit for 20 times or more.
  • Direct fuel injector assembly (No. 3 cylinder) circuit current reaches the high limit for 20 times or more.
  • Open or short in direct fuel injector assembly (No. 3 cylinder) circuit
  • Direct fuel injector assembly (No. 3 cylinder)
  • EDU relay
  • ECM

Comes on

SAE Code: P0203

P062D13

Fuel Injector Driver Circuit Performance Bank 1 Circuit Open

Open or short in direct fuel injector assembly (all cylinders) circuits for 60 times or more (1 trip detection logic).

  • Open or short in direct fuel injector assembly circuit
  • Direct fuel injector assembly
  • EDU relay
  • ECM

Comes on

SAE Code: P062D

MONITOR DESCRIPTION

The fuel injection sequence occurs in numerical order from No. 1 to No. 3.

The ECM monitors the Injector Driver (EDU) at all times. If drivers or direct fuel injector assembly is malfunctioning, the EDU sends direct fuel injector assembly operation condition signals (fail signals) to the ECM. When the ECM receives the signals, the ECM stops the fuel injection control of the appropriate cylinders, cuts voltage to the appropriate EDU relay, and illuminates the MIL.

MONITOR STRATEGY

Related DTCs

P0201: Injector circuit open (cylinder 1)

P0202: Injector circuit open (cylinder 2)

P0203: Injector circuit open (cylinder 3)

P062D: Injector driver performance

Required Sensors/Components (Main)

Direct fuel injector assembly

ECM (injector driver)

Required Sensors/Components (Related)

-

Frequency of Operation

Continuous

Duration

-

MIL Operation

Immediate

Sequence of Operation

None

TYPICAL ENABLING CONDITIONS

P0201, P0202 and P0203

All of the following conditions are met

-

Confirmed injection

2 times or more

Either of the following conditions is met

A or B

A. All of the following conditions are met

(a), (b) and (c)

(a) Starter

Off

(b) Battery voltage

10.5 V or higher

(c) Time after condition (b) is met

0.5 seconds or more

B. All of the following conditions are met

(d), (e) and (f)

(d) Starter

On

(e) Battery voltage

8 V or higher

(f) Time after condition (e) is met

0.5 seconds or more

Engine speed

100 to 6000 rpm

Injection time

0.00023 seconds or more

Injector driver relay

On

Fuel injector driver performance fail (P062D)

Not detected

Ignition switch

ON

Time after ignition switch off to ON

0.5 seconds or more

P062D

Monitor runs whenever the following DTCs are not stored

None

All of the following conditions are met

-

Confirmed injection

2 times or more

Either of the following conditions is met

A or B

A. All of the following conditions are met

(a), (b) and (c)

(a) Starter

Off

(b) Battery voltage

10.5 V or higher

(c) Time after condition (b) is met

0.5 seconds or more

B. All of the following conditions are met

(d), (e) and (f)

(d) Starter

On

(e) Battery voltage

8 V or higher

(f) Time after condition (e) is met

0.5 seconds or more

Engine speed

100 to 6000 rpm

Injection time

0.00023 seconds or more

Injector driver relay

On

Ignition switch

ON

Time after ignition switch off to ON

0.5 seconds or more

TYPICAL MALFUNCTION THRESHOLDS

P0201, P0202 and P0203

One of the following conditions is met

A, B or C

A. No confirmed injection signal input

20 times or more

B. Both of the following conditions are met

20 times or more

Current injector voltage detected by injector driver IC

4.8 V or higher

Last injector voltage detected by injector driver IC

4.8 V or higher

C. Either of the following conditions is met

(a) or (b)

(a) Both of the following conditions are met

20 times or more

Current injector driver MOSFET current detected by injector driver IC

30 A or more

Last injector driver MOSFET current detected by injector driver IC

30 A or more

(b) Both of the following conditions are met

1 and 2

1. Either of the following conditions is met

20 times or more

Current injector current during peak current control detected by injector driver IC

125 A or more

Current injector current during hold current control detected by injector driver IC

100 A or more

2. Either of the following conditions is met

20 times or more

Last injector current during peak current control detected by injector driver IC

125 A or more

Last injector current during hold current control detected by injector driver IC

100 A or more

P062D

No confirmed injection signal input in all cylinders

30 times or more

CONFIRMATION DRIVING PATTERN

HINT:

  • After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

    Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (ENGINE CONTROL): SFI SYSTEM: DTC CHECK / CLEAR

  • When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

    Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (ENGINE CONTROL): SFI SYSTEM: DTC CHECK / CLEAR

  1. Connect the GTS to the DLC3.
  2. Turn the ignition switch to ON.
  3. Turn the GTS on.
  4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  5. Turn the ignition switch off and wait for at least 30 seconds.
  6. Start the engine [A].
  7. Idle the engine for 15 seconds or more [B].
  8. Turn the GTS on.
  9. Enter the following menus: Powertrain / Engine / Trouble Codes [C].
  10. Read pending DTCs.

    HINT:

    • If a pending DTC is output, the system is malfunctioning.
    • If a pending DTC is not output, perform the following procedure.
  11. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
  12. Input the DTC: P020113, P020213, P020313 or P062D13
  13. Check the DTC judgment result.

    GTS Display

    Description

    NORMAL

    • DTC judgment completed
    • System normal

    ABNORMAL

    • DTC judgment completed
    • System abnormal

    INCOMPLETE

    • DTC judgment not completed
    • Perform driving pattern after confirming DTC enabling conditions

    HINT:

    • If the judgment result is NORMAL, the system is normal.
    • If the judgment result is ABNORMAL, the system has a malfunction.
    • If the judgment result is INCOMPLETE, perform steps [B] through [C] again.
    • [A] to [C]: Normal judgment procedure.

      The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

    • When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

Inspect the fuses for circuits related to this system before performing the following procedure.

HINT:

  • If the current from the EDU relay is cut because DTC P062D13 is stored, DTC P123513 will be stored even if the fuel pump assembly (for high pressure side) is normal.
  • Read Freeze Frame Data using the GTS. The ECM records vehicle and driving condition information as Freeze Frame Data the moment a DTC is stored. When troubleshooting, Freeze Frame Data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE

1.

CHECK DTC OUTPUT (DTC P020113, P020213, P020313 AND/OR P062D13)

(a) Enter the following menus.

(b) Read the DTCs.

Powertrain > Engine > Trouble Codes

Result

Proceed to

P020113, P020213, P020313 and/or P062D13 is output

A

3 or more of the following DTCs are output: P020113, P020213, P020313 and/or P062D13

B

P062D13 is output

B

GO TO STEP 4

A

2.

CHECK HARNESS AND CONNECTOR

(a) Disconnect the ECM connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

C142-31(#1D+) - C142-12(#1D-)

20°C (68°F)

1.34 to 1.64 Ω

C142-33(#2D+) - C142-14(#2D-)

20°C (68°F)

1.34 to 1.64 Ω

C142-35(#3D+) - C142-16(#3D-)

20°C (68°F)

1.34 to 1.64 Ω

C142-31(#1D+) or C142-12(#1D-) - Body ground and other terminals

Always

1 MΩ or higher

C142-33(#2D+) or C142-14(#2D-) - Body ground and other terminals

Always

1 MΩ or higher

C142-35(#3D+) or C142-16(#3D-) - Body ground and other terminals

Always

1 MΩ or higher

HINT:

The standard values shown are direct fuel injector assembly resistance values.

OK

REPLACE ECM 2023 MY GR Corolla [09/2022 - 11/2022]; G16E-GTS (ENGINE CONTROL): ECM: REMOVAL 2023 - 2025 MY GR Corolla [11/2022 -        ]; G16E-GTS (ENGINE CONTROL): ECM: REMOVAL

NG

3.

INSPECT DIRECT FUEL INJECTOR ASSEMBLY (RESISTANCE)

(a) Check the resistance of the direct fuel injector assembly.

Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (FUEL): FUEL INJECTOR (for Direct Injection): INSPECTION

HINT:

Perform "Inspection After Repair" after replacing the direct fuel injector assembly.

Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION

OK

REPAIR OR REPLACE HARNESS OR CONNECTOR (DIRECT FUEL INJECTOR ASSEMBLY - ECM)

NG

REPLACE DIRECT FUEL INJECTOR ASSEMBLY 2023 MY GR Corolla [09/2022 - 11/2022]; G16E-GTS (FUEL): FUEL INJECTOR (for Direct Injection): REMOVAL 2023 - 2025 MY GR Corolla [11/2022 -        ]; G16E-GTS (FUEL): FUEL INJECTOR (for Direct Injection): REMOVAL

4.

INSPECT EDU RELAY

Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (ENGINE CONTROL): RELAY: ON-VEHICLE INSPECTION

NG

REPLACE EDU RELAY

OK

5.

CHECK TERMINAL VOLTAGE (POWER SOURCE OF EDU RELAY)

(a) Remove the EDU relay from the No. 1 engine room relay block and No. 1 junction block assembly.

(b) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

5(EDU relay) - Body ground

Always

11 to 14 V

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - EDU RELAY)

OK

6.

CHECK TERMINAL VOLTAGE (POWER SOURCE OF EDU RELAY)

(a) Remove the EDU relay from the No. 1 engine room relay block and No. 1 junction block assembly.

(b) Turn the ignition switch to ON.

(c) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

1(EDU relay) - Body ground

Ignition switch ON

11 to 14 V

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (NO. 1 INTEGRATION RELAY- EDU RELAY)

OK

7.

CHECK HARNESS AND CONNECTOR (EDU RELAY - ECM)

(a) Remove the EDU relay from the No. 1 engine room relay block and No. 1 junction block assembly.

(b) Disconnect the ECM connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

3(EDU relay) - C142-19(+BD1)

Always

Below 1 Ω

3(EDU relay) - C142-38(+BD2)

Always

Below 1 Ω

3(EDU relay) - C142-18(+BD3)

Always

Below 1 Ω

2(EDU relay) - A139-34(IREL)

Always

Below 1 Ω

3(EDU relay), C142-19(+BD1), C142-38(+BD2) or C142-18(+BD3) - Body ground and other terminals

Always

10 kΩ or higher

2(EDU relay) or A139-34(IREL) - Body ground and other terminals

Always

10 kΩ or higher

OK

REPLACE ECM 2023 MY GR Corolla [09/2022 - 11/2022]; G16E-GTS (ENGINE CONTROL): ECM: REMOVAL 2023 - 2025 MY GR Corolla [11/2022 -        ]; G16E-GTS (ENGINE CONTROL): ECM: REMOVAL

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR