Hyundai Ioniq (AE): High Voltage Battery Control System / BMS ECU. Schematic diagrams
Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual / Hybrid Control System / High Voltage Battery Control System / BMS ECU. Schematic diagrams
| BMS ECU Terminal and Input/Output Signal |
| Terminal Funxtion |
Connector [B01-VC] (24pin) : High Voltage Battery Cell Voltage Check Connector
|
Pin No
|
Description
|
Connected to
|
| 1 | - | - |
| 2 | - | - |
| 3 | - | - |
| 4 | Battery Voltage [Module 1/ Cell 0] signal input | Battery Module [1] |
| 5 | Battery Voltage [Module 1/ Cell 2] signal input | Battery Module [1] |
| 6 | Battery Voltage [Module 1/ Cell 4] signal input | Battery Module [1] |
| 7 | Battery Voltage [Module 1/ Cell 6] signal input | Battery Module [1] |
| 8 | Battery Voltage [Module 1/ Cell 8] signal input | Battery Module [1] |
| 9 | Battery Voltage [Module 2/ Cell 1] signal input | Battery Module [1] |
| 10 | Battery Voltage [Module 2/ Cell 3] signal input | Battery Module [1] |
| 11 | Battery Voltage [Module 2/ Cell 5] signal input | Battery Module [1] |
| 12 | Battery Voltage [Module 2/ Cell 7] signal input | Battery Module [1] |
| 13 | - | - |
| 14 | - | - |
| 15 | - | - |
| 16 | Battery Voltage [Module 1/ Cell 1] signal input | Battery Module [1] |
| 17 | Battery Voltage [Module 1/ Cell 3] signal input | Battery Module [1] |
| 18 | Battery Voltage [Module 1/ Cell 5] signal input | Battery Module [1] |
| 19 | Battery Voltage [Module 1/ Cell 7] signal input | Battery Module [1] |
| 20 | Battery Voltage [Module 2/ Cell 0] signal input | Battery Module [1] |
| 21 | Battery Voltage [Module 2/ Cell 2] signal input | Battery Module [1] |
| 22 | Battery Voltage [Module 2/ Cell 4] signal input | Battery Module [1] |
| 23 | Battery Voltage [Module 2/ Cell 6] signal input | Battery Module [1] |
| 24 | Battery Voltage [Module 2/ Cell 8] signal input | Battery Module [1] |
Connector [B01-VD] (28pin) : High Voltage Battery Cell Voltage Check Connector
|
Pin No
|
Description
|
Connected to
|
| 1 | - | - |
| 2 | - | - |
| 3 | - | - |
| 4 | - | - |
| 5 | Battery Voltage [Module 3/ Cell 1] signal input | Battery Module [2] |
| 6 | Battery Voltage [Module 3/ Cell 3] signal input | Battery Module [2] |
| 7 | Battery Voltage [Module 3/ Cell 5] signal input | Battery Module [2] |
| 8 | Battery Voltage [Module 3/ Cell 7] signal input | Battery Module [2] |
| 9 | Battery Voltage [Module 4/ Cell 0] signal input | Battery Module [2] |
| 10 | Battery Voltage [Module 4/ Cell 2] signal input | Battery Module [2] |
| 11 | Battery Voltage [Module 4/ Cell 4] signal input | Battery Module [2] |
| 12 | Battery Voltage [Module 4/ Cell 6] signal input | Battery Module [2] |
| 13 | Battery Voltage [Module 4/ Cell 8] signal input | Battery Module [2] |
| 14 | - | - |
| 15 | - | - |
| 16 | - | - |
| 17 | - | - |
| 18 | Battery Voltage [Module 3/ Cell 0] signal input | Battery Module [2] |
| 19 | Battery Voltage [Module 3/ Cell 2] signal input | Battery Module [2] |
| 20 | Battery Voltage [Module 3/ Cell 4] signal input | Battery Module [2] |
| 21 | Battery Voltage [Module 3/ Cell 6] signal input | Battery Module [2] |
| 22 | Battery Voltage [Module 3/ Cell 8] signal input | Battery Module [2] |
| 23 | Battery Voltage [Module 4/ Cell 1] signal input | Battery Module [2] |
| 24 | Battery Voltage [Module 4/ Cell 3] signal input | Battery Module [2] |
| 25 | Battery Voltage [Module 4/ Cell 5] signal input | Battery Module [2] |
| 26 | Battery Voltage [Module 4/ Cell 7] signal input | Battery Module [2] |
| 27 | - | - |
| 28 | - | - |
Connector [B01-VE] (40pin) : High Voltage Battery Cell Voltage Check Connector
|
Pin No
|
Description
|
Connected to
|
| 1 | Battery Voltage [Module 5/ Cell 0] signal input | Battery Module [3] |
| 2 | Battery Voltage [Module 5/ Cell 2] signal input | Battery Module [3] |
| 3 | Battery Voltage [Module 5/ Cell 4] signal input | Battery Module [3] |
| 4 | Battery Voltage [Module 5/ Cell 6] signal input | Battery Module [3] |
| 5 | Battery Voltage [Module 5/ Cell 8] signal input | Battery Module [3] |
| 6 | Battery Voltage [Module 6/ Cell 1] signal input | Battery Module [3] |
| 7 | Battery Voltage [Module 6/ Cell 3] signal input | Battery Module [3] |
| 8 | Battery Voltage [Module 6/ Cell 5] signal input | Battery Module [3] |
| 9 | Battery Voltage [Module 6/ Cell 7] signal input | Battery Module [3] |
| 10 | Battery Voltage [Module 7/ Cell 0] signal input | Battery Module [4] |
| 11 | Battery Voltage [Module 7/ Cell 2] signal input | Battery Module [4] |
| 12 | Battery Voltage [Module 7/ Cell 4] signal input | Battery Module [4] |
| 13 | Battery Voltage [Module 7/ Cell 6] signal input | Battery Module [4] |
| 14 | Battery Voltage [Module 7/ Cell 8] signal input | Battery Module [4] |
| 15 | Battery Voltage [Module 8/ Cell 1] signal input | Battery Module [4] |
| 16 | Battery Voltage [Module 8/ Cell 3] signal input | Battery Module [4] |
| 17 | Battery Voltage [Module 8/ Cell 5] signal input | Battery Module [4] |
| 18 | Battery Voltage [Module 8/ Cell 7] signal input | Battery Module [4] |
| 19 | - | - |
| 20 | - | - |
| 21 | Battery Voltage [Module 5/ Cell 1] signal input | Battery Module [3] |
| 22 | Battery Voltage [Module 5/ Cell 3] signal input | Battery Module [3] |
| 23 | Battery Voltage [Module 5/ Cell 5] signal input | Battery Module [3] |
| 24 | Battery Voltage [Module 5/ Cell 7] signal input | Battery Module [3] |
| 25 | Battery Voltage [Module 6/ Cell 0] signal input | Battery Module [3] |
| 26 | Battery Voltage [Module 6/ Cell 2] signal input | Battery Module [3] |
| 27 | Battery Voltage [Module 6/ Cell 4] signal input | Battery Module [3] |
| 28 | Battery Voltage [Module 6/ Cell 6] signal input | Battery Module [3] |
| 29 | Battery Voltage [Module 6/ Cell 8] signal input | Battery Module [3] |
| 30 | Battery Voltage [Module 7/ Cell 1] signal input | Battery Module [4] |
| 31 | Battery Voltage [Module 7/ Cell 3] signal input | Battery Module [4] |
| 32 | Battery Voltage [Module 7/ Cell 5] signal input | Battery Module [4] |
| 33 | Battery Voltage [Module 7/ Cell 7] signal input | Battery Module [4] |
| 34 | Battery Voltage [Module 8/ Cell 0] signal input | Battery Module [4] |
| 35 | Battery Voltage [Module 8/ Cell 2] signal input | Battery Module [4] |
| 36 | Battery Voltage [Module 8/ Cell 4] signal input | Battery Module [4] |
| 37 | Battery Voltage [Module 8/ Cell 6] signal input | Battery Module [4] |
| 38 | Battery Voltage [Module 8/ Cell 8] signal input | Battery Module [4] |
| 39 | - | - |
| 40 | - | - |
Connector [B01-T] (12pin) : High Voltage Battery Temperatue Sensor Check Connector
|
Pin No
|
Description
|
Connected to
|
| 1 | Battery Temperatue Sensor [Module 1] signal input | Battery Temperatue Sensor |
| 2 | Battery Temperatue Sensor [Module 4] signal input | Battery Temperatue Sensor |
| 3 | - | - |
| 4 | Battery Temperatue Sensor [Air Inlet] signal input | Battery Temperatue Sensor |
| 5 | - | - |
| 6 | - | - |
| 7 | Sensor ground [Module 1] | Battery Temperatue Sensor |
| 8 | Sensor ground [Module 4] | Battery Temperatue Sensor |
| 9 | - | - |
| 10 | Sensor ground [Air Inlet] | Battery Temperatue Sensor |
| 11 | - | - |
| 12 | - | - |
Connector [B01-S] (32pin) : High Voltage Battery Control Connector
|
Pin No
|
Description
|
Connected to
|
| 1 | Battery Power (B+) | BMS Extension Connector BF11 (1) |
| 2 | Battery Power (B+) | BMS Extension Connector BF11 (11) |
| 3 | Battery Power (B+) | BMS Extension Connector BF11 (12) |
| 4 | Cooling fan feedback signal input | BMS Blower Motor |
| 5 | H-CAN [High] | Other Control Module |
| 6 | H-CAN [Low] | Other Control Module |
| 7 | P-CAN [High] | Other Control Module |
| 8 | P-CAN [Low] | Other Control Module |
| 9 | - | - |
| 10 | - | - |
| 11 | Sensor Power (+5V) | Battery Current Sensor [PRA] |
| 12 | Battery Current Sensor signal input | Battery Current Sensor [PRA] |
| 13 | - | - |
| 14 | - | - |
| 15 | Pre-Charge Relay Control | Pre-Charge Relay |
| 16 | Main Relay [+] Control | Main Relay [+] |
| 17 | Ground | Chassis Ground |
| 18 | Ground | Chassis Ground |
| 19 | Cooling Fan Relay Control | BMS Extension Connector BF11 (4) |
| 20 | Cooling Fan Speed signal input | BMS Blower Motor |
| 21 | - | - |
| 22 | - | - |
| 23 | - | - |
| 24 | Clash signal input | BMS Extension Connector BF11 (18) |
| 25 | Safety Plug Interlock signal input | Safety Plug |
| 26 | - | |
| 27 | Sensor ground | Battery Current Sensor [PRA] |
| 28 | - | - |
| 29 | - | - |
| 30 | VPD Relay Control | VPD Relay |
| 31 | - | - |
| 32 | Main Relay [-] Control | Main Relay [-] |
| Circuit Diagram |
Schematic Diagram
Removal1.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.
Other information:
Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Repair procedures
Replacement1.Remove the battery (-) terminal.2.Remove the engine room under cover.(Refer to Engine Mechanical System - "Engine Room Under Cover")3.Remove the heater hose (A) and AEWP hose (B).4.Disconnect the lock pin to remove the heater hose pump connector (A).
Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Description and operation
DescriptionThe smart cruise control system allows a driver to program the vehicle to control the speed and following distance by detecting the vehicle ahead without depressing the brake pedal and the accelerator pedal.1.Cruise speed control : The vehicle maintains the selected speed if there are not vehicles ahead.
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