СИСТЕМА ECD > MIL Circuit

для подготовки Нажмите здесь


DESCRIPTION

The MIL is used to inform the user when the ECM has detected a vehicle malfunction.
By turning the ignition switch to ON, power is supplied to the MIL circuit and the ECM provides the circuit ground that illuminates the MIL.
Operation of the MIL should be checked visually: When the ignition switch is first turned to ON, the MIL should illuminate. When the engine is started, the MIL should turn off.

WIRING DIAGRAM


A0098YNE04


INSPECTION PROCEDURE

ПРИМЕЧАНИЕ:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.

1.CHECK MIL CONDITION

  1. Check the MIL condition.

    Result:
    Condition
    		Proceed to
    MIL remains on
    		A
    MIL does not illuminate
    		B



B
Перейдите к шагу 5
A


2.CHECK IF MIL TURNS OFF

  1. Connect the intelligent tester to the DLC3.

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

  1. Check if DTCs have been stored (See page Нажмите здесь). If DTCs are stored, write them down.

  1. Clear the DTCs using the intelligent tester (See page Нажмите здесь).

  1. Check that the MIL turns off.

    OK:
    The MIL turns off.



NG
Перейдите к шагу 3
OK

REPAIR CIRCUIT INDICATED BY OUTPUT DTC (Нажмите здесь)  

3.CHECK HARNESS AND CONNECTOR (FOR SHORT)
A009B2AE07

  1. Disconnect the ECM connector.

  1. Turn the ignition switch to ON.

  1. Check that the MIL is not illuminated.

    OK:
    The MIL is not illuminated.

    Text in Illustration 
    *a
    		Rear view of wire harness connector
    (to ECM)

  1. Reconnect the ECM connector.



NG
Перейдите к шагу 4
OK

REPLACE ECM (Нажмите здесь)  

4.CHECK HARNESS AND CONNECTOR (ECM - COMBINATION METER ASSEMBLY)

  1. Disconnect the ECM connector.

  1. Disconnect the combination meter assembly connector.

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

    Standard Resistance (Check for Open):
    Tester Connection
    		Condition
    		Specified Condition
    G61-5 (W) - G7-7 (CHK)
    		Always
    		Below 1 Ω

    Standard Resistance (Check for Short):
    Tester Connection
    		Condition
    		Specified Condition
    G61-5 (W) or G7-7 (CHK) - Body ground
    		Always
    		10 kΩ or higher

  1. Reconnect the ECM connector.

  1. Reconnect the combination meter assembly connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE COMBINATION METER ASSEMBLY (Нажмите здесь)  

5.CHECK IF MIL ILLUMINATES

  1. Check that the MIL illuminates when turning the ignition switch to ON.

    OK:
    The MIL illuminates.



NG
Перейдите к шагу 6
OK

NORMAL 

6.INSPECT COMBINATION METER ASSEMBLY (MIL CIRCUIT)

  1. Refer to the combination meter assembly troubleshooting procedures (See page Нажмите здесь).



NG
REPAIR OR REPLACE COMBINATION METER ASSEMBLY (Нажмите здесь)
OK

REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION METER - ECM)