Kia Niro: High Voltage Battery Control System / BMS ECU Schematic diagrams

Kia Niro 2017 (DE HEV) Service Manual / Service Highlight / High Voltage Battery Control System / BMS ECU Schematic diagrams

BMS ECU Terminal And Input/Output Signal

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 [-]

Connector pins by the battery cell number displayed on KDS / GDS
Module
Cell
Battery cell number displayed on KDS / GDS
Pins
1
1
1
B01-VC (4) and B01-VC (16)
2
2
B01-VC (16) and B01-VC (5)
3
3
B01-VC (5) and B01-VC (17)
4
4
B01-VC (17) and B01-VC (6)
5
5
B01-VC (6) and B01-VC (18)
6
6
B01-VC (18) and B01-VC (7)
7
7
B01-VC (7) and B01-VC (19)
8
8
B01-VC (19) and B01-VC (8)
9
9
B01-VC (20) and B01-VC (9)
10
10
B01-VC (9) and B01-VC (21)
11
11
B01-VC (21) and B01-VC (10)
12
12
B01-VC (10) and B01-VC (22)
13
13
B01-VC (22) and B01-VC (11)
14
14
B01-VC (11) and B01-VC (23)
15
15
B01-VC (23) and B01-VC (12)
16
16
B01-VC (12) and B01-VC (24)
2
1
17
B01-VD (18) and B01-VD (5)
2
18
B01-VD (5) and B01-VD (19)
3
19
B01-VD (19) and B01-VD (6)
4
20
B01-VD (6) and B01-VD (20)
5
21
B01-VD (20) and B01-VD (7)
6
22
B01-VD (7) and B01-VD (21)
7
23
B01-VD (21) and B01-VD (8)
8
24
B01-VD (8) and B01-VD (22)
9
25
B01-VD (9) and B01-VD (23)
10
26
B01-VD (23) and B01-VD (10)
11
27
B01-VD (10) and B01-VD (24)
12
28
B01-VD (24) and B01-VD (11)
13
29
B01-VD (11) and B01-VD (25)
14
30
B01-VD (25) and B01-VD (12)
15
31
B01-VD (12) and B01-VD (26)
16
32
B01-VD (26) and B01-VD (13)
3
1
33
B01-VE (1) and B01-VE (21)
2
34
B01-VE (21) and B01-VE (2)
3
35
B01-VE (2) and B01-VE (22)
4
36
B01-VE (22) and B01-VE (3)
5
37
B01-VE (3) and B01-VE (23)
6
38
B01-VE (23) and B01-VE (4)
7
39
B01-VE (4) and B01-VE (24)
8
40
B01-VE (24) and B01-VE (5)
9
41
B01-VE (25) and B01-VE (6)
10
42
B01-VE (6) and B01-VE (26)
11
43
B01-VE (26) and B01-VE (7)
12
44
B01-VE (7) and B01-VE (27)
13
45
B01-VE (27) and B01-VE (8)
14
46
B01-VE (8) and B01-VE (28)
15
47
B01-VE (28) and B01-VE (9)
16
48
B01-VE (9) and B01-VE (29)
4
1
49
B01-VE (10) and B01-VE (30)
2
50
B01-VE (30) and B01-VE (11)
3
51
B01-VE (11) and B01-VE (31)
4
52
B01-VE (31) and B01-VE (12)
5
53
B01-VE (12) and B01-VE (32)
6
54
B01-VE (32) and B01-VE (13)
7
55
B01-VE (13) and B01-VE (33)
8
56
B01-VE (33) and B01-VE (14)
9
57
B01-VE (34) and B01-VE (15)
10
58
B01-VE (15) and B01-VE (35)
11
59
B01-VE (35) and B01-VE (16)
12
60
B01-VE (16) and B01-VE (36)
13
61
B01-VE (36) and B01-VE (17)
14
62
B01-VE (17) and B01-VE (37)
15
63
B01-VE (37) and B01-VE (18)
16
64
B01-VE (18) and B01-VE (38)

Circuit Diagram

Troubleshooting
Troubleshooting Flow ...

BMS ECU Repair procedures
Removal    • Be sure to read and follow the “General Safety Information and Caution” ...

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