Hyundai Ioniq: High Voltage Battery Control System / BMS ECU. Repair procedures
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. 
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5. | Remove the high voltage battery rear cover (A) after loosening the mounting bolts and nuts. 
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6. | Remove the high voltage battery front cover (A) after loosening the mounting bolts and nuts. 
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7. | Disconnect the BMS connector (A). |
8. | Remove the installation nut (B), then remove the BMS. 
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| 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. |
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1. | Install the BMS ECU in the reverse order of removal. High voltage battery rear and front cover installation bolt / nut : 7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 lb-ft) BMS ECU Installation nut : 7.8 - 11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 lb-ft) |
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DescriptionSafety Plug is installed on the rear side of the high voltage battery and it can mechanically shut the high voltage circuit off when servicing the high voltage system...
Other information:
The hybrid system informs the drivers its energy flow in various operating modes.
While driving, the current energy flow is specified in 11 modes.
Vehicle Stop
The vehicle is stopped. (No energy flow)
EV Propulsion
Only the motor power is used to drive the vehicle...
Removal[Room Lamp]1.Disconnect the negative (-) battery terminal.2.Using a screwdriver or remover, Separate the room lamp lens (A) from the room lamp.
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Put on gloves to prevent hand injuries.•
When removing with a flat-tip screwdriver or remover, wrap protective tape around the tools to prevent damage to components...
Categories

The Driver Position Memory System is provided to store and recall the following
memory settings with a simple button operation.
- Driver's seat position
- Side view mirror position
- Instrument panel illumination intensity
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