Sfi System Fuel Injector Circuit

Engine. Camry. Acv40 Gsv40
2Gr-Fe Engine Control System. Camry. Acv40 Gsv40

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK ECM (#10, #20, #30, #40, #50, #60 VOLTAGE)

INSPECT INJECTOR ASSEMBLY

INSPECT IGNITION RELAY NO. 2

CHECK HARNESS AND CONNECTOR (ECM - INJECTOR)

CHECK HARNESS AND CONNECTOR (INJECTOR - IG2 RELAY)

INSPECT FUSE (IG2 FUSE)

INSPECT IGNITION RELAY NO. 2 (VOLTAGE)

CHECK HARNESS AND CONNECTOR (IG2 RELAY - BODY GROUND)

CHECK HARNESS AND CONNECTOR (IG2 RELAY - IGNITION SWITCH)

INSPECT IGNITION SWITCH

SFI SYSTEM - Fuel Injector Circuit


DESCRIPTION

The fuel injectors are located on the intake manifold. They inject fuel into the cylinders based on the signals from the ECM.

WIRING DIAGRAM


Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System.Sfi System Fuel Injector Circuit


INSPECTION PROCEDURE

1.CHECK ECM (#10, #20, #30, #40, #50, #60 VOLTAGE)


    Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System.Sfi System Fuel Injector Circuit

  1. Disconnect the C58 (RHD) or C55 (LHD) ECM connector.

  1. Turn the ignition switch to the ON position.

  1. Measure the voltage between the terminals.

    Standard voltage:
    RHD:
    Tester Connection
    		Specified Condition
    #10 (C58-45) - E01 (C58-22)
    		9 to 14 V
    #20 (C58-85) - E01 (C58-22)
    		9 to 14 V
    #30 (C58-44) - E01 (C58-22)
    		9 to 14 V
    #40 (C58-84) - E01 (C58-22)
    		9 to 14 V
    #50 (C58-43) - E01 (C58-22)
    		9 to 14 V
    #60 (C58-83) - E01 (C58-22)
    		9 to 14 V
    LHD:
    Tester Connection
    		Specified Condition
    #10 (C55-45) - E01 (C55-22)
    		9 to 14 V
    #20 (C55-85) - E01 (C55-22)
    		9 to 14 V
    #30 (C55-44) - E01 (C55-22)
    		9 to 14 V
    #40 (C55-84) - E01 (C55-22)
    		9 to 14 V
    #50 (C55-43) - E01 (C55-22)
    		9 to 14 V
    #60 (C55-83) - E01 (C55-22)
    		9 to 14 V

  1. Reconnect the ECM connector.



OK
CHECK FOR INTERMITTENT PROBLEMS
NG


2.INSPECT INJECTOR ASSEMBLY

  1. Inspect the injector assembly (CAMRY_ACV40 RM000001IR1005X.html).



NG
REPLACE INJECTOR ASSEMBLY (CAMRY_ACV40 RM000001IR3003X.html)
OK


3.INSPECT IGNITION RELAY NO. 2


    Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System.Sfi System Fuel Injector Circuit

  1. Remove the IG2 relay from the engine room R/B.

  1. Measure the resistance between the terminals.

    Standard resistance:
    Tester Connection
    		Specified Condition
    3 - 5
    		10 kΩ or higher
    3 - 5
    		Below 1 Ω
    (Apply battery voltage between terminals 1 and 2)

  1. Reinstall the IG2 relay.



NG
REPLACE IGNITION RELAY NO. 2
OK


4.CHECK HARNESS AND CONNECTOR (ECM - INJECTOR)


    Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System.Sfi System Fuel Injector Circuit

  1. Disconnect the injector connector.

  1. Disconnect the C58 (RHD) or C55 (LHD) ECM connector.

  1. Measure the resistance between the terminals.

    Standard resistance:
    RHD:
    Tester Connection
    		Specified Condition
    #10 (C58-45) - C7-1
    		Below 1 Ω
    #20 (C58-85) - C9-1
    		Below 1 Ω
    #30 (C58-44) - C8-1
    		Below 1 Ω
    #40 (C58-84) - C10-1
    		Below 1 Ω
    #50 (C58-43) - C36-1
    		Below 1 Ω
    #60 (C58-83) - C37-1
    		Below 1 Ω
    #10 (C58-45) or C7-1 - Body ground
    		10 kΩ or higher
    #20 (C58-85) or C9-1 - Body ground
    		10 kΩ or higher
    #30 (C58-44) or C8-1 - Body ground
    		10 kΩ or higher
    #40 (C58-84) or C10-1 - Body ground
    		10 kΩ or higher
    #50 (C58-43) or C36-1 - Body ground
    		10 kΩ or higher
    #60 (C58-83) or C37-1 - Body ground
    		10 kΩ or higher
    LHD:
    Tester Connection
    		Specified Condition
    #10 (C55-45) - C7-1
    		Below 1 Ω
    #20 (C55-85) - C9-1
    		Below 1 Ω
    #30 (C55-44) - C8-1
    		Below 1 Ω
    #40 (C55-84) - C10-1
    		Below 1 Ω
    #50 (C55-43) - C36-1
    		Below 1 Ω
    #60 (C55-83) - C37-1
    		Below 1 Ω
    #10 (C55-45) or C7-1 - Body ground
    		10 kΩ or higher
    #20 (C55-85) or C9-1 - Body ground
    		10 kΩ or higher
    #30 (C55-44) or C8-1 - Body ground
    		10 kΩ or higher
    #40 (C55-84) or C10-1 - Body ground
    		10 kΩ or higher
    #50 (C55-43) or C36-1 - Body ground
    		10 kΩ or higher
    #60 (C55-83) or C37-1 - Body ground
    		10 kΩ or higher

  1. Reconnect the injector connector.

  1. Reconnect the ECM connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


5.CHECK HARNESS AND CONNECTOR (INJECTOR - IG2 RELAY)


    Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System.Sfi System Fuel Injector Circuit

  1. Remove the IG2 relay from the engine room relay block.

  1. Disconnect the injector connectors.

  1. Measure the resistance between the terminals.

    Standard resistance (check for open):
    Tester Connection
    		Specified Condition
    C7-2 - IG2 relay terminal 3
    		Below 1 Ω
    C9-2 - IG2 relay terminal 3
    		Below 1 Ω
    C8-2 - IG2 relay terminal 3
    		Below 1 Ω
    C10-2 - IG2 relay terminal 3
    		Below 1 Ω
    C36-2 - IG2 relay terminal 3
    		Below 1 Ω
    C37-2 - IG2 relay terminal 3
    		Below 1 Ω
    Standard resistance (check for short):
    Tester Connection
    		Specified Condition
    C7-2 or IG2 relay terminal 3 - Body ground
    		10 kΩ or higher
    C9-2 or IG2 relay terminal 3 - Body ground
    		10 kΩ or higher
    C8-2 or IG2 relay terminal 3 - Body ground
    		10 kΩ or higher
    C10-2 or IG2 relay terminal 3 - Body ground
    		10 kΩ or higher
    C36-2 or IG2 relay terminal 3 - Body ground
    		10 kΩ or higher
    C37-2 or IG2 relay terminal 3 - Body ground
    		10 kΩ or higher

  1. Reinstall the IG2 relay.

  1. Reconnect the injector connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


6.INSPECT FUSE (IG2 FUSE)


    Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System.Sfi System Fuel Injector Circuit

  1. Remove the IG2 fuse from the engine room relay block.

  1. Measure the IG2 fuse resistance.

    Standard resistance:
    Below 1 Ω

  1. Reinstall the IG2 fuse.



NG
REPLACE IG2 FUSE
OK


7.INSPECT IGNITION RELAY NO. 2 (VOLTAGE)


    Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System.Sfi System Fuel Injector Circuit

  1. Remove the IG2 relay from the engine room relay block.

  1. Measure the IG2 relay voltage.

    Standard voltage:
    9 to 14 V

  1. Reinstall the IG2 relay.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (IG2 RELAY - BATTERY)
OK


8.CHECK HARNESS AND CONNECTOR (IG2 RELAY - BODY GROUND)


    Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System.Sfi System Fuel Injector Circuit

  1. Remove the IG2 relay from the engine room R/B.

  1. Measure the resistance between the terminals.

    Standard resistance:
    Tester Connection
    		Specified Condition
    IG2 relay terminal 2 - Body ground
    		Below 1 Ω

  1. Reinstall the IG2 relay.

    Result:
    Result
    		Proceed to
    OK
    		A
    NG
    		B


B
REPAIR OR REPLACE HARNESS OR CONNECTOR
A


9.CHECK HARNESS AND CONNECTOR (IG2 RELAY - IGNITION SWITCH)


    Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System.Sfi System Fuel Injector Circuit

  1. Remove the IG2 relay from the engine room relay block.

  1. Disconnect the E23 ignition switch connector.

  1. Measure the resistance between the terminals.

    Standard resistance (check for open):
    Tester Connection
    		Specified Condition
    IG2 relay terminal 1 - IG2 (E23-6)
    		Below 1 Ω
    Standard resistance (check for short):
    Tester Connection
    		Specified Condition
    IG2 relay terminal 1 or IG2 (E23-6) - Body ground
    		10 kΩ or higher

  1. Reinstall the IG2 relay.

  1. Reconnect the ignition switch connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


10.INSPECT IGNITION SWITCH


    Camry. Acv40 Gsv40.2Gr-Fe Engine Control System.Sfi System.Sfi System Fuel Injector Circuit

  1. Disconnect the E23 ignition switch connector.

  1. Measure the resistance between the terminals.

    Standard resistance:
    Tester Connection
    		Ignition Switch Position
    		Specified Condition
    All terminals
    		LOCK
    		10 kΩ or higher
    2 - 4
    		ACC
    		Below 1 Ω
    1 - 2 - 4, 5 - 6
    		ON
    1 - 3 - 4, 5 - 6 - 7
    		START

  1. Reconnect the ignition switch connector.



NG
REPLACE IGNITION SWITCH
OK

REPAIR OR REPLACE HARNESS OR CONNECTOR (IGNITION SWITCH - BATTERY)