Sfi System Starter Signal Circuit

Engine Hybrid System. Land Cruiser. Urj200, 202 Grj200 Vdj200
1Ur-Fe Engine Control. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING GTS (STARTER SIGNAL)

CHECK STARTER RELAY (ST) (POWER SOURCE)

INSPECT STARTER RELAY (ST)

CHECK HARNESS AND CONNECTOR (STARTER RELAY (ST) - BODY GROUND)

CHECK HARNESS AND CONNECTOR (STARTER RELAY (ST) - PARK/NEUTRAL POSITION SWITCH)

INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - MAIN BODY ECU)

SFI SYSTEM - Starter Signal Circuit


DESCRIPTION

While the engine is being cranked, current flows from terminal STAR of the main body ECU to the park/neutral position switch and also flows to terminal STA of the ECM (STA signal).

WIRING DIAGRAM

Refer to DTC P0617 (Click here).

INSPECTION PROCEDURE

NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
HINT:
This chart is based on the premise that the engine can crank normally. If the engine cannot crank normally, proceed to Problem Symptoms Table (Click here).
1.READ VALUE USING GTS (STARTER SIGNAL)

  1. Connect the GTS to the DLC3.

  1. Turn the engine switch on (IG).

  1. Turn the GTS on.

  1. Enter the following menus: Powertrain / Engine and ECT / Data List / Starter Signal.

  1. Read the value.

    OK:

    Engine Switch Position
    		Starter Signal
    On (IG)
    		OFF
    START
    		ON


NG
Go to step 2
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)

2.CHECK STARTER RELAY (ST) (POWER SOURCE)

  1. Remove the starter relay (ST) from the engine room relay block.

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

    Standard Voltage:

    Tester Connection
    		Condition
    		Specified Condition
    Starter relay (ST) terminal 2 - Body ground
    		Engine cranking
    		11 to 14 V
    Starter relay (ST) terminal 1* - Body ground
    		Engine cranking
    		11 to 14 V
    *: URJ202L-GNTEKC
    HINT:
    The engine does not crank because the relay is not installed.

  1. Reinstall the starter relay (ST).



NG
Go to step 5
OK


3.INSPECT STARTER RELAY (ST)

  1. Inspect the starter relay (ST) (Click here).



NG
REPLACE STARTER RELAY (ST)
OK


4.CHECK HARNESS AND CONNECTOR (STARTER RELAY (ST) - BODY GROUND)

  1. Remove the starter relay (ST) from the engine room relay block.

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

    Standard Resistance:

    Tester Connection
    		Condition
    		Specified Condition
    Starter relay (ST) terminal 1 - Body ground
    		Always
    		Below 1 Ω
    Starter relay (ST) terminal 2* - Body ground
    		Always
    		Below 1 Ω
    *: URJ202L-GNTEKC

  1. Reinstall the starter relay (ST).



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (STARTER RELAY (ST) - BODY GROUND)
OK

REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - PARK/NEUTRAL POSITION SWITCH)

5.CHECK HARNESS AND CONNECTOR (STARTER RELAY (ST) - PARK/NEUTRAL POSITION SWITCH)

  1. Remove the starter relay (ST) from the engine room relay block.

  1. Disconnect the park/neutral position switch connector.

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

    Standard Resistance:

    Tester Connection
    		Condition
    		Specified Condition
    Starter relay (ST) terminal 1* - C24-5 (L)
    		Always
    		Below 1 Ω
    Starter relay (ST) terminal 2 - C24-5 (L)
    		Always
    		Below 1 Ω
    Starter relay (ST) terminal 1* or C24-5 (L) - Body ground
    		Always
    		10 kΩ or higher
    Starter relay (ST) terminal 2 or C24-5 (L) - Body ground
    		Always
    		10 kΩ or higher
    *: URJ202L-GNTEKC

  1. Reinstall the starter relay (ST).

  1. Reconnect the park/neutral position switch connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


6.INSPECT PARK/NEUTRAL POSITION SWITCH ASSEMBLY

  1. Inspect the park/neutral position switch assembly (Click here).



NG
REPLACE PARK/NEUTRAL POSITION SWITCH ASSEMBLY (Click here)
OK


7.CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - MAIN BODY ECU)

  1. Disconnect the park/neutral position switch connector.

  1. Disconnect the main body ECU connector.

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

    Standard Resistance:

    Tester Connection
    		Condition
    		Specified Condition
    C24-4 (B) - E1-8 (STR)
    		Always
    		Below 1 Ω
    C24-4 (B) or E1-8 (STR) - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the park/neutral position switch connector.

  1. Reconnect the main body ECU connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

GO TO ENTRY AND START SYSTEM (Click here)