СИСТЕМА ECD > Starter Signal Circuit

для подготовки Нажмите здесь


DESCRIPTION

When the engine is cranked, the intake air flow becomes slow so fuel vaporization is poor. A rich mixture is therefore necessary in order to achieve good startability. While the engine is being cranked, the battery voltage is applied to terminal STA of the ECM. The starter signal is mainly used to increase the fuel injection volume for starting and after-start injection control.

WIRING DIAGRAM


A00970UE02


INSPECTION PROCEDURE


When using intelligent tester:

1.READ VALUE USING INTELLIGENT TESTER (STA SIGNAL)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to ON and turn the tester on.

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

  1. Read the STA signal on the intelligent tester while the starter operates.

    OK:
    Ignition Switch Position
    		STA Signal
    LOCK, ACC, ON
    		OFF
    START
    		ON



NG
Перейдите к шагу 2
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Нажмите здесь)  

2.CHECK HARNESS AND CONNECTOR (CLUTCH START SWITCH - ECM)

  1. Disconnect the clutch start switch connector.

  1. Disconnect the ECM connector.

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

    Standard Resistance (Check for Open):
    for LHD 
    Tester Connection
    		Condition
    		Specified Condition
    A41-1 - G61-11 (STA)
    		Always
    		Below 1 Ω
    for RHD 
    Tester Connection
    		Condition
    		Specified Condition
    r2-1 - G61-11 (STA)
    		Always
    		Below 1 Ω


    Standard Resistance (Check for Short):
    for LHD 
    Tester Connection
    		Condition
    		Specified Condition
    A41-1 or G61-11 (STA) - Body ground
    		Always
    		10 kΩ higher
    for RHD 
    Tester Connection
    		Condition
    		Specified Condition
    r2-1 or G61-11 (STA) - Body ground
    		Always
    		10 kΩ higher

  1. Reconnect the clutch start switch connector.

  1. Reconnect the ECM connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE ECM (Нажмите здесь)  


When not using intelligent tester:

1.CHECK ECM (STA VOLTAGE)
A00971KE01

  1. Turn the ignition switch to ON.

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    G61-11 (STA) - C101-14 (E1)
    		Cranking
    		6 V or higher

    Text in Illustration 
    *a
    		Component with harness connected
    (ECM)



NG
Перейдите к шагу 2
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Нажмите здесь)  

2.CHECK HARNESS AND CONNECTOR (CLUTCH START SWITCH - ECM)

  1. Disconnect the clutch start switch connector.

  1. Disconnect the ECM connector.

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

    Standard Resistance (Check for Open):
    for LHD 
    Tester Connection
    		Condition
    		Specified Condition
    A41-1 - G61-11 (STA)
    		Always
    		Below 1 Ω
    for RHD 
    Tester Connection
    		Condition
    		Specified Condition
    r2-1 - G61-11 (STA)
    		Always
    		Below 1 Ω


    Standard Resistance (Check for Short):
    for LHD 
    Tester Connection
    		Condition
    		Specified Condition
    A41-1 or G61-11 (STA) - Body ground
    		Always
    		10 kΩ higher
    for RHD 
    Tester Connection
    		Condition
    		Specified Condition
    r2-1 or G61-11 (STA) - Body ground
    		Always
    		10 kΩ higher

  1. Reconnect the clutch start switch connector.

  1. Reconnect the ECM connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE ECM (Нажмите здесь)