Hyundai Ioniq: High Voltage Battery Control System / BMS ECU. Schematic diagrams

Hyundai Ioniq (AE) 2017-2024 Service 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 diagrams

    S..

    BMS ECU. Repair procedures

    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) 2017-2024 Service Manual: Description and operation


    DescriptionRail Pressure Sensor (RPS) is installed on the delivery pipe and measures the instantaneous fuel pressure in the delivery pipe. The sensing element (Semiconductor element) built in the sensor converts the pressure to voltage signal. By using this signal, the ECM can control correct injection amount and timing and adjusts the fuel pressure with the fuel pressure regulator valve if the target pressure and the actual pressure calculated by the RPS output signal are different...

    Hyundai Ioniq (AE) 2017-2024 Owner's Manual: LCD Display Modes (for cluster type B)


    Edit settings after shifting to P/ Shift to P to edit settings Either message appears if you try to adjust the User Settings while driving. For your safety, change the User Settings after parking the vehicle, applying the parking brake and moving the shift lever to P (Park)...

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