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 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” ...

Other information:

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Description The evaporator temperature sensor will detect the evaporator core temperature and interrupt compressor relay power in order to prevent evaporator from freezing by excessive cooling. The evaporator temperature sensor has the Negative Temperature Coefficient (NTC). Elect ...

Kia Niro 2017 (DE HEV) Service Manual: Smart Cruise Control (SCC) Switch Repair procedures
Inspection Measuring Resistance 1. Disconnect the cruise control switch connector from the control switch. 2. Measure resistance between terminals on the control switch when each function switch is ON (switch is depressed). ...

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