Toyota Yaris: Sfi System / Cylinder 1 Injector "A" Circuit Open (P020113-P020313,P062D13)

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Engine & Hybrid System / G16e-gts (engine Control) / Sfi System / Cylinder 1 Injector "A" Circuit Open (P020113-P020313,P062D13)

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
  • EFI-MAIN NO. 1 relay
  • ECM

Comes on

SAE: 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
  • EFI-MAIN NO. 1 relay
  • ECM

Comes on

SAE: 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
  • EFI-MAIN NO. 1 relay
  • ECM

Comes on

SAE: 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
  • EFI-MAIN NO. 1 relay
  • ECM

Comes on

SAE: 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

Required Sensors/Components (Main)

Direct fuel injector assembly

ECM (injector driver)

Frequency of Operation

Continuous

CONFIRMATION DRIVING PATTERN

  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.

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

D104-31(#1D+) - D104-12(#1D-)

20°C (68°F)

1.34 to 1.64 Ω

D104-33(#2D+) - D104-14(#2D-)

20°C (68°F)

1.34 to 1.64 Ω

D104-35(#3D+) - D104-16(#3D-)

20°C (68°F)

1.34 to 1.64 Ω

D104-31(#1D+) or D104-12(#1D-) - Body ground and other terminals

Always

1 MΩ or higher

D104-33(#2D+) or D104-14(#2D-) - Body ground and other terminals

Always

1 MΩ or higher

D104-35(#3D+) or D104-16(#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

NG

3.

INSPECT DIRECT FUEL INJECTOR ASSEMBLY (RESISTANCE)

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

Click here

HINT:

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

Click here

OK

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

NG

REPLACE DIRECT FUEL INJECTOR ASSEMBLY

4.

INSPECT EDU RELAY

Click here

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 assembly.

*1

No. 1 Engine Room Relay Block Assembly

*2

EDU Relay

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

3(EDU relay) - Body ground

Always

11 to 14 V

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (AUXILIARY 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 assembly.

*1

No. 1 Engine Room Relay Block Assembly

*2

EDU Relay

(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

2(EDU relay) - Body ground

Ignition switch ON

11 to 14 V

NG

GO TO STEP 8

OK

7.

CHECK HARNESS AND CONNECTOR (EDU RELAY - ECM)

(a) Remove the EDU relay from the No. 1 engine room relay 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

5(EDU relay) - D104-19(+BD1)

Always

Below 1 Ω

5(EDU relay) - D104-38(+BD2)

Always

Below 1 Ω

5(EDU relay) - D104-18(+BD3)

Always

Below 1 Ω

1(EDU relay) - A106-34(IREL)

Always

Below 1 Ω

5(EDU relay), D104-19(+BD1), D104-38(+BD2) or D104-18(+BD3) - Body ground and other terminals

Always

10 kΩ or higher

1(EDU relay) or A106-34(IREL) - Body ground and other terminals

Always

10 kΩ or higher

OK

REPLACE ECM

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

8.

CHECK HARNESS AND CONNECTOR (EFI-MAIN NO. 1 RELAY - EDU RELAY)

(a) Remove the EFI-MAIN NO. 1 relay, EFI-MAIN NO. 3 relay and EDU relay from the No. 1 engine room relay block assembly.

HINT:

Remove the EFI-MAIN NO. 3 relay and EDU relay connected between the checked terminals as the coil inside the relay influences the measurement value.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

5(EFI-MAIN NO. 1 relay) - 2(EDU relay)

Always

Below 1 Ω

5(EFI-MAIN NO. 1 relay) or 2(EDU relay) - Body ground and other terminals

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

9.

INSPECT EFI-MAIN NO. 1 RELAY

Click here

NG

REPLACE EFI-MAIN NO. 1 RELAY

OK

10.

CHECK TERMINAL VOLTAGE (POWER SOURCE OF EFI-MAIN NO. 1 RELAY)

(a) Remove the EFI-MAIN NO. 1 relay from the No. 1 engine room relay block assembly.

*1

No. 1 Engine Room Relay Block Assembly

*2

EFI-MAIN NO. 1 Relay

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

3(EFI-MAIN NO. 1 relay) - Body ground

Always

11 to 14 V

1(EFI-MAIN NO. 1 relay) - Body ground

Always

11 to 14 V

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR (AUXILIARY BATTERY - EFI-MAIN NO. 1 RELAY)

OK

11.

CHECK HARNESS AND CONNECTOR (EFI-MAIN NO. 1 RELAY - BODY GROUND)

(a) Remove the EFI-MAIN NO. 1 relay from the No. 1 engine room relay 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

2(EFI-MAIN NO. 1 relay) - A106-15 (MREL)

Always

Below 1 Ω

OK

REPLACE ECM

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

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