Kia Niro: 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 Temperature Sensor Check Connector
Pin No.
Description
Connected to
1
Battery Temperature Sensor [Module 1] signal input
Battery Temperature Sensor
2
Battery Temperature Sensor [Module 4] signal input
Battery Temperature Sensor
3
-
-
4
Battery Temperature Sensor [Air Inlet] signal input
Battery Temperature Sensor
5
-
-
6
-
-
7
Sensor ground [Module 1]
Battery Temperature Sensor 
8
Sensor ground [Module 4]
Battery Temperature Sensor
9
-
-
10
Sensor ground [Air Inlet]
Battery Temperature 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” ...

Other information:

Kia Niro (DE HEV) Owners Manual: Tires
Adjust the tire inflation pressures to specification. Low tire inflation pressures will result in overheating and possible failure of the tires. Avoid using worn or damaged tires which may result in reduced traction or tire failure. ✽ NOTICE Never exceed the maximum tire inflation pressure ...

Kia Niro (DE HEV) Owners Manual: Engine clutch actuator fluid
Checking the engine clutch actuator fluid level In normal driving conditions, the actuator fluid level does not go down rapidly. However, oil consumption rate may rise as vehicle mileage increases, and leakage in actuator related parts may result in increased consumption of the engine clutch ...

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