P0201

1UR-FSE ENGINE CONTROL SYSTEM: SFI SYSTEM: P0201-P0208, P062D, P062E: Injector Circuit / Open - (Cylinder 1)
P062E - Fuel Injector Driver Circuit Performance Bank2

DESCRIPTION

The D-4S system has two fuel injection methods. One is the in-cylinder direct injection method that directly injects pressurized fuel into the combustion chamber. The other is the intake port injection method. The ECM determines which fuel injection method to use in accordance with the engine conditions. For the in-cylinder direction injection method, the 2 injector drivers (EDU) in the engine room operate the fuel injectors (for direction injection) at high speeds.

Each EDU receives fuel injection request signals from the ECM and converts the signals to high voltage / high current injector operation signals to operate the fuel injectors (for direction injection). The fuel injection sequence occurs in the following order: No.1, No. 8, No. 7, No. 3, No. 6, No. 5, No. 4, No. 2. The ECM monitors each EDU at all times. If injector drivers or injectors are malfunctioning, the EDU sends fuel injector operation condition fail signals (INJ1 to INJ4) to the ECM.





INJ1 to INJ4 signal group









MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS

P0201, P0202, P0203, P0204, P0205, P0206, P0207, P0208





P62D, P062E





TYPICAL MALFUNCTION THRESHOLDS

P0201, P0202, P0203, P0204, P0205, P0206, P0207, P0208





P062D, P062E









CONFIRMATION DRIVING PATTERN





1. Connect the Techstream to the DLC3.

2. Turn the engine switch on (IG) and turn the Techstream on.

3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure) Reading and Clearing Diagnostic Trouble Codes.

4. Turn the engine switch off and wait for 30 seconds.

5. Turn the engine switch on (IG) and turn the Techstream on [A].

6. Start the engine.

7. Idle the engine for 15 seconds or more [B].

8. Enter the following menus: Powertrain / Engine / Trouble Codes.

9. Read the DTC [C].

HINT
- If a DTC is output, the system is malfunctioning.
- If a DTC is not output, perform the following procedure.

10. Enter the following menus: Powertrain / Engine / Utility / All Readiness.

11. Input the DTC: P0201, P0202, P0203, P0204, P0205, P0206, P0207, P0208, P062D, P062E.

12. Check the DTC judgment result.





HINT
- If the judgment result shows ABNORMAL, the system has a malfunction.
- If the judgment result shows NORMAL, the system is normal.
- If the judgment result shows INCOMPLETE or UNKNOWN, perform step [B] again.

13. Enter the following menus: Powertrain / Engine / Utility / All Readiness.

14. Check the DTC judgment result.

HINT
- If the judgment result shows ABNORMAL, the system has a malfunction.
- If the judgment result shows NORMAL, the system is normal.

15. If the test result is INCOMPLETE or UNKNOWN and no DTC is output, perform a universal trip and check for permanent DTCs Reading and Clearing Diagnostic Trouble Codes.

HINT
- If a permanent DTC is output, the system is malfunctioning.
- If no permanent DTC is output, the system is normal.

WIRING DIAGRAM













INSPECTION PROCEDURE

HINT
- If the current from the INJ relay is cut because DTC P062D is stored, DTC P1235 will be stored even if the fuel pump for high pressure (Bank 1) is normal.
- If the current from the INJ2 relay is cut because DTC P062E is stored, DTC P1236 will be stored even if the fuel pump for high pressure (Bank 2) is normal.
- Read freeze frame data using the Techstream. Freeze frame data records the engine condition when malfunctions are detected. 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. CLEAR DTC

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Clear the DTC Reading and Clearing Diagnostic Trouble Codes.

HINT
- If DTC P062D is stored, current to the INJ relay will be shut off.
- If DTC P062E is stored, current the INJ2 relay will be shut off.

NEXT -- Continue to next step.

2. INSPECT INJECTOR DRIVER (POWER SOURCE OF ECU)

(a) Disconnect the injector driver (EDU) connector.





(b) Turn the engine switch on (IG).

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

Standard Voltage (No. 1):





Standard Voltage (No. 2):





Result:





(d) Reconnect the injector driver connector.

C -- CHECK FUSE (INJ2 FUSE)

B -- INSPECT FUSE (INJ FUSE)
A -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (GROUND CIRCUIT)

(a) Disconnect injector driver connector.

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

Standard Resistance (No. 1):





Standard Resistance (No. 2):





(c) Reconnect the injector driver connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (GROUND CIRCUIT)
OK -- Continue to next step.

4. CHECK FOR DTC

(a) Interchange the injector drivers No. 1 and No. 2.





(b) Connect the Techstream to the DLC3.

(c) Turn the engine switch on (IG) and turn the Techstream on.

(d) Clear DTCs Reading and Clearing Diagnostic Trouble Codes.

NOTICE:
Before deleting the DTCs, write them down.

(e) Start the engine.

(f) Enter the following menus: Powertrain / Engine / Trouble Codes.

(g) Read the DTC.

Result:





B -- REPLACE INJECTOR DRIVER Components
A -- Continue to next step.

5. CHECK HARNESS AND CONNECTOR (FUEL INJECTOR FOR DIRECT INJECTION)

(a) Disconnect the injector driver (No. 1) connector.

(b) Disconnect the injector driver (No. 2) connector.

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

Standard Resistance (No. 1):





Standard Resistance (No. 2):





(d) Reconnect the injector driver connectors.

NG -- INSPECT FUEL INJECTOR FOR DIRECT INJECTION
OK -- Continue to next step.

6. CHECK HARNESS AND CONNECTOR (INJECTOR DRIVER - ECM)

(a) Disconnect the ECM connectors.

(b) Disconnect the injector driver (EDU) connector.

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

Standard Resistance (Check for Open):





Standard Resistance (Check for Short):





(d) Reconnect the injector driver connector.

(e) Reconnect the ECM connectors.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE ECM Components

7. INSPECT FUSE (INJ FUSE)

(a) Remove the INJ fuse from the integration relay.





(b) Measure the resistance of the INJ fuse.

Standard resistance:

Below 1 Ohms

(c) Reinstall the INJ fuse.

NG -- REPLACE FUSE
OK -- Continue to next step.

8. INSPECT INTEGRATION RELAY (INJ RELAY)

(a) Remove the integration relay from the engine room No. 2 relay block.





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

Standard Resistance:





(c) Reinstall the integration relay.

NG -- REPLACE INTEGRATION RELAY
OK -- Continue to next step.

9. CHECK HARNESS AND CONNECTOR (INJ RELAY - EFI MAIN RELAY)

(a) Remove the integration relay from the engine room No. 2 relay block.

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

Standard Resistance:





(c) Reinstall the integration relay.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (EFI NO. 2 FUSE - INJ RELAY)
OK -- Continue to next step.

10. CHECK HARNESS AND CONNECTOR (INJ RELAY - ECM)

(a) Remove the integration relay from the engine room No. 2 relay block.

(b) Disconnect the ECM connector.

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

Standard Resistance (Check for Open):





Standard Resistance (Check for Short):





(d) Reinstall the integration relay.

(e) Reconnect the ECM connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (INJ RELAY - ECM)
OK -- Continue to next step.

11. CHECK HARNESS AND CONNECTOR (INJ RELAY - INJECTOR DRIVER (NO. 1))

(a) Remove the integration relay from the engine room No. 2 relay block.

(b) Disconnect the injector driver (NO. 1) connector.

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

Standard Resistance (Check for Open):





Standard Resistance (Check for Short):





(d) Reinstall the integration relay.

(e) Reconnect the injector driver connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (INJ RELAY - INJECTOR DRIVER (NO. 1))

OK -- REPAIR OR REPLACE HARNESS OR CONNECTOR (INJ RELAY - P/I-B FUSE)

12. INSPECT FUEL INJECTOR FOR DIRECT INJECTION

(a) Check the resistance of the fuel injector for direct injection Fuel Injector (for Direct Injection).

NG -- REPLACE FUEL INJECTOR FOR DIRECT INJECTION Components

OK -- REPAIR OR REPLACE HARNESS OR CONNECTOR (INJECTOR DRIVER - ECM)

13. CHECK FUSE (INJ2 FUSE)

(a) Remove the INJ2 fuse from the engine room No. 2 relay block.





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

Standard Resistance:





(c) Reinstall the fuse.

NG -- REPLACE FUSE
OK -- Continue to next step.

14. INSPECT INJ2 RELAY

(a) Remove the INJ2 relay from the engine room No. 2 relay block.





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

Standard Resistance:





NG -- REPLACE INJ2 RELAY
OK -- Continue to next step.

15. CHECK HARNESS AND CONNECTOR (INJ2 RELAY POWER SOURCE)

(a) Remove the INJ2 relay from the engine room No. 2 relay block.





(b) Turn the engine switch on (IG).

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

Standard Voltage:





(d) Reinstall the INJ2 relay.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (INJ2 RELAY - EFI MAIN RELAY)
OK -- Continue to next step.

16. CHECK HARNESS AND CONNECTOR (INJ2 RELAY - ECM)

(a) Remove the INJ2 relay from the engine room No. 2 relay block.

(b) Disconnect the ECM connector.

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

Standard Resistance (Check for Open):





Standard Resistance (Check for Short):





(d) Reinstall the INJ2 relay.

(e) Reconnect the ECM connector.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (INJ2 RELAY - ECM)
OK -- Continue to next step.

17. CHECK HARNESS AND CONNECTOR (INJ2 RELAY - BATTERY)

(a) Remove the INJ2 relay from the engine room No. 2 relay block.





(b) Turn the engine switch on (IG).

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

Standard Voltage:





(d) Reinstall the INJ2 relay.

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (INJ2 RELAY - BATTERY)

OK -- REPAIR OR REPLACE HARNESS OR CONNECTOR (INJ2 RELAY - INJECTOR DRIVER (NO. 2))