RM38N0EC _V1 General _112220 MAINTENANCE _0501672 COOLANT(for Inverter) A

MAINTENANCE  COOLANT(for Inverter)  REPLACEMENT  


CAUTION / NOTICE / HINT

CAUTION:

To avoid the danger of being burned, do not remove the reserve tank cap or drain cock plug while the coolant (for inverter) is still hot. Pressurized, hot coolant (for inverter) and steam may be released and cause serious burns.

A505805C01
6.167,2.625 6.479,2.625 true 5.146,1.125 5.313,1.125 5.313,1.125 5.427,0.885 true 4.948,1.031 5.135,1.219 0.188,0.188 10 true *1 6.5,2.521 6.688,2.688 0.188,0.167 10 true *2
*1 Reserve Tank Cap *2 Drain Cock Plug



PROCEDURE

Hide 1.DRAIN COOLANT (for Inverter)

CAUTION:

To avoid the danger of being burned, do not remove the reserve tank cap while the coolant (for inverter) is still hot. Pressurized, hot coolant (for inverter) and steam may be released and cause serious burns.


NOTICE:
·

Do not reuse the drained coolant because it may contain foreign matter.

·

Collect the drained coolant and measure its volume to establish a benchmark. When adding coolant, make sure to add more coolant than the measured amount.



a.

Remove the reserve tank cap from the inverter reserve tank assembly.


b.

Remove the front fender front splash shield LH.

Click hereEngine / Hybrid System>A25D-FXS, A25F-FXS (ENGINE MECHANICAL)>ENGINE ASSEMBLY>REMOVAL


c.
A465889

Remove the 2 screws.


d.

Pull down the No. 1 engine under cover.

NOTICE:

Do not damage the No. 1 engine under cover.



e.
A505806

Connect a hose with an inside diameter of 8.3 mm (0.327 in.) to the radiator drain cock as shown in the illustration.


f.

Loosen the drain cock plug indicated in the illustration and drain the coolant.

CAUTION:

To avoid the danger of being burned, do not loosen the drain cock plug while the coolant (for inverter) is still hot. Pressurized, hot coolant (for inverter) and steam may be released and cause serious burns.



g.

Tighten the drain cock plug by hand.


h.

Disconnect the hose from the drain cock.


i.

Install the No. 1 engine under cover with the 2 screws.


j.

Install the front fender front splash shield LH.

Click hereEngine / Hybrid System>A25D-FXS, A25F-FXS (ENGINE MECHANICAL)>ENGINE ASSEMBLY>INSTALLATION


Hide 2.ADD COOLANT (for Inverter)

NOTICE:
·

Do not reuse the drained coolant because it may contain foreign matter.

·

If the vehicle is driven with air in the inverter cooling system, damage may occur and the following DTCs may be stored.

DTC No. Detection Item
P0A9300 Inverter "A" Cooling System Performance
P0A001C Motor Electronics Coolant Temperature Sensor Circuit Voltage Out of Range
P0A789E Drive Motor "A" Inverter Stuck On
P1C5D19 Drive Motor "A" Inverter Circuit Current Above Threshold
P0A7A9E Generator Inverter Stuck On
P1C5F19 Generator Inverter Circuit Current Above Threshold
P0A949E DC/DC Converter Stuck On
P0D3319 DC/DC Converter Circuit Current Above Threshold
P0AED1C Drive Motor Inverter Temperature Sensor "A" Circuit Voltage Out of Range
P0C381C DC/DC Converter Temperature Sensor "A" Circuit Voltage Out of Range
P0C3D1C DC/DC Converter Temperature Sensor "B" Circuit Voltage Out of Range
P1CCC96 DC/DC Converter Enable Component Internal Failure



a.
A451892

Slowly pour coolant into the inverter reserve tank assembly until it reaches the FULL line.

Standard Capacity:

1.6 liters (1.7 US qts, 1.4 Imp. qts)


NOTICE:

To prevent foreign matter such as dust or dirt from entering the cooling system, make sure to confirm that the container used to add coolant is clean and free of foreign matter.



b.

Activate the Inverter Water Pump

Powertrain > Hybrid Control > Active Test
Tester Display
Activate the Inverter Water Pump
50004 397 1
HINT:

The inverter water pump with motor assembly can also be operated using inspection mode.

Click hereGeneral>INTRODUCTION>REPAIR INSTRUCTION>INSPECTION MODE PROCEDURE



c.

While adding coolant to the inverter reserve tank assembly to keep the coolant at the FULL line and compensate for the drop in the coolant level as the air bleeds, operate and stop the inverter water pump with motor assembly at 1 minute intervals.

Standard:

Air bleeding from the inverter cooling system is completed when the noise made by the inverter water pump with motor assembly becomes smaller and the circulation of coolant in the inverter reserve tank assembly improves.


HINT:

Loud noises made by the inverter water pump with motor assembly and poor circulation of coolant in the inverter reserve tank assembly indicate that there is air in the cooling system.



d.

After the air is completely bled from the cooling system, add coolant to the FULL line of inverter reserve tank assembly and install the reserve tank cap.

NOTICE:

Make sure that more coolant than the volume collected coolant volume is added.