Вентилятор Системы Охлаждения Цепь Вентилятора Системы Охлаждения. Corolla Auris

Двигатель. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150
Система Охлаждения 1Nd-Tv. COROLLA, AURIS. ZZE150 ZRE151,152 NDE150

DESCRIPTION

INSPECTION PROCEDURE

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (CONTROL THE COOLING FAN)

INSPECT COOLING FAN ECU

CHECK HARNESS AND CONNECTOR (ECM - COOLING FAN ECU)

INSPECT COOLING FAN MOTOR

INSPECT COOLING FAN ECU (POWER SOURCE)

CHECK HARNESS AND CONNECTOR (COOLING FAN ECU - BODY GROUND)

INSPECT FAN NO. 1 RELAY

INSPECT FUSIBLE LINK BLOCK (RDI FAN FUSE)

INSPECT FUSE (ECU-IG NO. 1)

CHECK HARNESS AND CONNECTOR (COOLING FAN ECU - FAN NO. 1 RELAY)

CHECK HARNESS AND CONNECTOR (FAN NO. 1 RELAY - BODY GROUND)

CHECK HARNESS AND CONNECTOR (FAN NO. 1 RELAY - ECU-IG NO. 1 FUSE)

CHECK HARNESS AND CONNECTOR (FAN NO. 1 RELAY - RDI FAN FUSE)

ВЕНТИЛЯТОР СИСТЕМЫ ОХЛАЖДЕНИЯ - Цепь вентилятора системы охлаждения


DESCRIPTION

The ECM calculates an appropriate cooling fan speed based on the engine coolant temperature, air conditioning switch condition, refrigerant pressure, engine speed, and vehicle speed and sends the signals to the cooling fan ECU to regulate the cooling fan. The cooling fan ECU controls the cooling fan speed based on the duty ratio signal sent from the ECM. Based on the operating conditions, the ECM can control the fan speed optimally using the cooling fan ECU, achieving both high cooling performance and quietness. The cooling fan speed is determined based on engine coolant temperature, air conditioner operating conditions, engine speed, and vehicle speed.

INSPECTION PROCEDURE

1.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (CONTROL THE COOLING FAN)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the ignition switch to the ON position.

  1. Engine the following menus: Powertrain / Engine / Active Test / Control the Cooling Fan.

  1. Check the operation of the cooling fan while operating it using the intelligent tester.

    OK:
    The cooling fan rotates.


NG
Перейдите к шагу 2
OK

REPLACE ECM (Нажмите здесь)

2.INSPECT COOLING FAN ECU

  1. Disconnect the ECM connector.

  1. Turn the ignition switch to the ON position.

  1. Check the operation of cooling fan.

    OK:
    The cooling fan rotates.

  1. Reconnect the ECM connector.



NG
Перейдите к шагу 3
OK

REPLACE ECM (Нажмите здесь)

3.CHECK HARNESS AND CONNECTOR (ECM - COOLING FAN ECU)


  1. Disconnect the cooling fan ECU connector.


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Охлаждения 1Nd-Tv.Система Охлаждения.Вентилятор Системы Охлаждения Цепь Вентилятора Системы Охлаждения

  1. Disconnect the ECM connector.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A57-3 (RFC) - A41-2 (SI)
    		Always
    		Below 1 Ω

  1. Reconnect the cooling fan ECU connector.

  1. Reconnect the ECM connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (ECM - FAN CONTROL ECU)
OK


4.INSPECT COOLING FAN MOTOR


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Охлаждения 1Nd-Tv.Система Охлаждения.Вентилятор Системы Охлаждения Цепь Вентилятора Системы Охлаждения

  1. Disconnect the cooling fan connector.

  1. Connect the battery positive terminal to the terminal 2 of the cooling fan connector, and connect the battery negative terminal to the terminal 1 of the cooling fan connector.

    OK:
    The cooling fan rotates.

  1. Reconnect the cooling fan connector.



NG
REPLACE COOLING FAN MOTOR (Нажмите здесь)
OK


5.INSPECT COOLING FAN ECU (POWER SOURCE)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Охлаждения 1Nd-Tv.Система Охлаждения.Вентилятор Системы Охлаждения Цепь Вентилятора Системы Охлаждения

  1. Disconnect the cooling fan ECU connector.

  1. Turn the ignition switch to the ON position.

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

    Standard voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    A41-1 (+B1) - A41-3 (E1)
    		Ignition switch ON
    		9 to 14 V

  1. Reconnect the cooling fan ECU connector.



NG
Перейдите к шагу 6
OK

REPLACE COOLING FAN ECU

6.CHECK HARNESS AND CONNECTOR (COOLING FAN ECU - BODY GROUND)

  1. Disconnect the cooling fan ECU connector.



    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Охлаждения 1Nd-Tv.Система Охлаждения.Вентилятор Системы Охлаждения Цепь Вентилятора Системы Охлаждения

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A41-3 (E1) - Body ground
    		Always
    		Below 1 Ω

  1. Reconnect the cooling fan ECU connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (COOLING FAN ECU - BODY GROUND)
OK


7.INSPECT FAN NO. 1 RELAY


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Охлаждения 1Nd-Tv.Система Охлаждения.Вентилятор Системы Охлаждения Цепь Вентилятора Системы Охлаждения

  1. Remove the FAN No. 1 relay 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
    3 - 5
    		Always
    		10 kΩ or higher
    3 - 5
    		Battery voltage applied to terminals 1 and 2
    		Below 1 Ω

  1. Reinstall the FAN No. 1 relay.



NG
REPLACE FAN NO. 1 RELAY
OK


8.INSPECT FUSIBLE LINK BLOCK (RDI FAN FUSE)

  1. Check the RDI FAN fuse.



NG
REPLACE FUSIBLE LINK BLOCK
OK


9.INSPECT FUSE (ECU-IG NO. 1)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Охлаждения 1Nd-Tv.Система Охлаждения.Вентилятор Системы Охлаждения Цепь Вентилятора Системы Охлаждения

  1. Remove the ECU-IG No. 1 fuse from the instrument panel junction block.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    ECU-IG No. 1 fuse
    		Always
    		Below 1 Ω

  1. Reinstall the ECU-IG No. 1 Fuse.



NG
REPLACE FUSE (ECU-IG NO. 1 FUSE)
OK


Перейдите к шагу 11

10.CHECK HARNESS AND CONNECTOR (COOLING FAN ECU - FAN NO. 1 RELAY)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Охлаждения 1Nd-Tv.Система Охлаждения.Вентилятор Системы Охлаждения Цепь Вентилятора Системы Охлаждения

  1. Disconnect the cooling fan ECU connector.

  1. Remove the FAN No. 1 relay 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
    A41-1 (+B1) - 5 (FAN No.1 relay)
    		Always
    		Below 1 Ω

  1. Reconnect the cooling fan ECU connector.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (COOLING FAN ECU - FAN NO. 1 RELAY)
OK


Перейдите к шагу 12

11.CHECK HARNESS AND CONNECTOR (FAN NO. 1 RELAY - BODY GROUND)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Охлаждения 1Nd-Tv.Система Охлаждения.Вентилятор Системы Охлаждения Цепь Вентилятора Системы Охлаждения

  1. Remove the FAN No. 1 relay 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
    2 (FAN No. 1 relay) - Body ground
    		Always
    		Below 1 Ω

  1. Reinstall the FAN No. 1 relay.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (FAN NO. 1 RELAY - BODY GROUND)
OK


Перейдите к шагу 13

12.CHECK HARNESS AND CONNECTOR (FAN NO. 1 RELAY - ECU-IG NO. 1 FUSE)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Охлаждения 1Nd-Tv.Система Охлаждения.Вентилятор Системы Охлаждения Цепь Вентилятора Системы Охлаждения

  1. Remove the ECU-IG No. 1 fuse from the instrument panel junction block.

  1. Remove the FAN No. 1 relay 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
    2 (ECU-IG No. 1 fuse) - 1 (FAN No. 1 relay)
    		Always
    		Below 1 Ω

  1. Reinstall the ECU-IG No. 1fuse.

  1. Reinstall the FAN No. 1 relay.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (FAN NO. 1 RELAY - ECU-IG NO. 1 FUSE)
OK


13.CHECK HARNESS AND CONNECTOR (FAN NO. 1 RELAY - RDI FAN FUSE)


    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150

  1. Remove the fusible link block assembly from engine room relay block.

  1. Disconnect the fusible link block connector.



    COROLLA, AURIS. ZZE150 ZRE151,152 NDE150.Система Охлаждения 1Nd-Tv.Система Охлаждения.Вентилятор Системы Охлаждения Цепь Вентилятора Системы Охлаждения

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    3 (FAN No. 1 relay) - 1C-2 (Fusible link block)
    		Always
    		Below 1 Ω

  1. Reconnect the fusible link connector.

  1. Reinstall the fusible link.



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR (FAN NO. 1 RELAY - RDI FAN FUSE)
OK

REPAIR OR REPLACE HARNESS OR CONNECTOR (BATTERY - RDI FAN FUSE)