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: In-car Sensor. Repair procedures
Diagnosis With GDS1.The heating, ventilation and air conditioning can be quickly diagnosed failed parts with vehicle diagnostic system (GDS).※ The diagnostic system (GDS) provides the following information.(1) Self diagnosis : Checking the failure code (DTC) and display.
Hyundai Ioniq (AE) 2017-2022 Service & Repair Manual: Warning Indicator. Repair procedures
RemovalWarning Indicator1.Disconnect the negative (-) battery terminal.2.Remove the mirror (A).InstallationWarning Indicator1.Install the outside mirror.2.Connect the negative (-) battery terminal.Inspection1.Apply battery voltage to each terminal as shown in the table and verify that the mirror operates properly.
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