RM38T0EC _51 Engine / Hybrid System _144716 M20F-FXS, M20G-FXS COOLING _0602996 COOLING FAN SYSTEM G

M20F-FXS, M20G-FXS COOLING  COOLING FAN SYSTEM  ON-VEHICLE INSPECTION  


CAUTION / NOTICE / HINT

CAUTION:
·
A345225

When working near the engine room while the engine has started or the power source mode is ignition switch to ON, do not touch the rotating components such as the fan, etc.

·

Touching rotating components such as the fan, etc. could result in your hand or clothing getting caught and pulled in.

·
A344783

When the engine is hot, do not touch high-temperature areas such as the engine or exhaust manifold.

·

Touching high-temperature areas such as the engine and exhaust manifold could result in burns.



PROCEDURE

Hide 1.INSPECT COOLING FAN SYSTEM OPERATION AT LOW TEMPERATURES

CAUTION:
·

When working near the engine room while the engine has started or the power source mode is ignition switch to ON, do not touch the rotating components such as the fan, etc.

·

Touching rotating components such as the fan, etc. could result in your hand or clothing getting caught and pulled in.

·

When the engine is hot, do not touch high-temperature areas such as the engine or exhaust manifold.

·

Touching high-temperature areas such as the engine and exhaust manifold could result in burns.



a.

Check and ensure the following conditions:

i.

Turn the ignition switch off.


ii.

The engine coolant temperature is less than 94°C (201°F).


iii.

The A/C switch is off.



b.

Turn the ignition switch to ON (IG) and wait for approximately 10 seconds. Check that the cooling fans are not operating.


c.

Check that the cooling fans operate when the water temperature sensor connector is disconnected.


Hide 2.INSPECT COOLING FAN SYSTEM OPERATION AT HIGH TEMPERATURES

CAUTION:
·

When working near the engine room while the engine has started or the power source mode is ignition switch to ON, do not touch the rotating components such as the fan, etc.

·

Touching rotating components such as the fan, etc. could result in your hand or clothing getting caught and pulled in.

·

When the engine is hot, do not touch high-temperature areas such as the engine or exhaust manifold.

·

Touching high-temperature areas such as the engine and exhaust manifold could result in burns.



a.

Check and ensure the following conditions:

i.

Connect the GTS to the DLC3.


ii.

Turn the ignition switch to ON (IG).


iii.

Turn the GTS on.


iv.

Enter following menus: Powertrain / Hybrid Control / Utility / Inspection Mode.

Powertrain > Hybrid Control > Utility
Tester Display
Inspection Mode
50005 397 2103

v.

Warm up the engine.


vi.

The engine coolant temperature is less than 94°C (201°F).


vii.

The A/C switch is off.



b.

Start the engine. Check that the cooling fans are not operating.


c.

Check that the cooling fans start operating when the engine coolant temperature reaches approximately 96°C (205°F).

HINT:

This system can also be checked using the GTS.

Enter the following menus: Powertrain / Engine / Data List / Coolant Temperature.


Powertrain > Engine > Data List
Tester Display
Coolant Temperature
50003 372 205