Hyundai Ioniq: High Voltage Battery Cooling System / Cooling Fan. Repair procedures

Hyundai Ioniq (AE) 2017-2024 Service Manual / Hybrid Control System / High Voltage Battery Cooling System / Cooling Fan. Repair procedures

Removal

•	Be sure to read and follow the "General Safety Information and Caution" before doing any work related with the high voltage system. Failure to follow the safety instructions may result in serious electrical injuries.

1.	Shut off the high voltage. (Refer to Hybrid Control System - "High Voltage Shut-off Procedures")

2.	Remove the rear seat cushion. (Refer to Body - "Rear Seat Assembly")

3.	Remove the rear door scuff trim. (Refer to Body - "Door Scuff Trim")

4.	Remove the upper frame (A) after loosening the mounting bolts and nuts.

5.	Remove the high voltage battery rear cover (A) after loosening the mounting bolts and nuts.

6.	Remove the high voltage battery front cover (A) after loosening the mounting bolts and nuts.

7.	Remove the outlet cooling duct. (Refer to Hybrid Control System - "Cooling Duct")

8.	Disconnect the cooling fan connector (A).

9.	Remove the safety plug cable after loosening the mounting nuts (B).

10.	Remove the cooling fan after loosening the mounting bolts and nuts (A).

Installation

•	Be sure to read and follow the "General Safety Information and Caution" before doing any work related with the high voltage system. Failure to follow the safety instructions may result in serious electrical injuries.

Install the cooling fan in the reverse order of removal.

Cooling fan installation nut :

7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 lb-ft)

Inspection

1.	Connect the GDS to the Data Link Connector (DLC).

Connect the oscilloscope probe to the BMS extension connectors.

Cooling Fan Speed Waveform :

BMS Extension Connector B01-S (20)

Cooling Fan Feedback Waveform :

BMS Extension Connector B01-S (4)

3.	Turn the ignition switch ON.

Check "Fan Status", "Current" "Waveform" and waveforms in each cooling fan operation mode by using "Actuation Test" function in GDS.

Specification : Refer to "Specification"

[Cooling Fan at 1st]

[Cooling Fan at 2st]

[Cooling Fan at 3st]

[Cooling Fan at 4st]

[Cooling Fan at 5st]

[Cooling Fan at 6st]

[Cooling Fan at 7st]

[Cooling Fan at 8st]

[Cooling Fan at 9st]

Cooling Fan. Components and components location

C..

Cooling Duct. Repair procedures

Removal • Be sure to read and follow the "General Safety Information and Caution" before doing any work related with the high voltage system...

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