Battery Management System (BMS) ECU Schematic Diagrams

System Diagram

Connector Location

BMS ECU Connector and Terminal Function

BMS ECU Terminal Function

Connector A [B01-A] (35-pin) - Voltage Measurement Connector

Pin No.	Description	Connected To
1	Battery Cell [Module 8 / Cell 13] Voltage Input	Battery Cell [Module 8 / Cell 13]
2	Battery Cell [Module 8 / Cell 10] Voltage Input	Battery Cell [Module 8 / Cell 10]
3	Battery Cell [Module 8 / Cell 7] Voltage Input	Battery Cell [Module 8 / Cell 7]
4	Battery Cell [Module 8 / Cell 4] Voltage Input	Battery Cell [Module 8 / Cell 4]
5	Battery Cell [Module 7 / Cell 4] Voltage Input	Battery Cell [Module 7 / Cell 4]
6	Battery Cell [Module 7 / Cell 1] Voltage Input	Battery Cell [Module 7 / Cell 1]
7	Battery Cell [Module 6 / Cell 8] Voltage Input	Battery Cell [Module 6 / Cell 8]
8	Battery Cell [Module 6 / Cell 5] Voltage Input	Battery Cell [Module 6 / Cell 5]
9	Battery Cell [Module 8 / Cell 14] Voltage Input	Battery Cell [Module 8 / Cell 14]
10	Battery Cell [Module 8 / Cell 11] Voltage Input	Battery Cell [Module 8 / Cell 11]
11	Battery Cell [Module 8 / Cell 9] Voltage Input	Battery Cell [Module 8/Cell 9]
12	Battery Cell [Module 8 / Cell 7] Voltage Input	Battery Cell [Module 8 / Cell 7]
13	Battery Cell [Module 8/Cell 5] Voltage Input	Battery Cell [Module 8/Cell 5]
14	Battery Cell [Module 8/Cell 2] Voltage Input	Battery Cell [Module 8/Cell 2]
15	Battery Cell [Module 8/Bottom Line Cell] Voltage Input	Battery Pack [Module 8]
16	Battery Cell [Module 7/Cell 10] Voltage Input	Battery Cell [Module 7/Cell 10]
17	Battery Cell [Module 7/Cell 8] Voltage Input	Battery Cell [Module 7/Cell 8]
18	Battery Cell [Module 7/Cell 6] Voltage Input	Battery Cell [Module 7/Cell 6]
19	Battery Cell [Module 7/Cell 5] Voltage Input	Battery Cell [Module 7/Cell 5]
20	Battery Cell [Module 7/Cell 2] Voltage Input	Battery Cell [Module 7/Cell 2]
21	Battery Cell [Module 7/Bottom Line Cell] Voltage Input	Battery Pack [Module 7]
22	Battery Cell [Module 6/Cell 9] Voltage Input	Battery Cell [Module 6/Cell 9]
23	Battery Cell [Module 6/Cell 6] Voltage Input	Battery Cell [Module 6/Cell 6]
24	-
25	Battery Cell [Module 8/Cell 12] Voltage Input	Battery Cell [Module 8/Cell 12]
26	Battery Cell [Module 8/Cell 8] Voltage Input	Battery Cell [Module 8/Cell 8]
27	Battery Cell [Module 8/Cell 6] Voltage Input	Battery Cell [Module 8/Cell 6]
28	Battery Cell [Module 8/Cell 3] Voltage Input	Battery Cell [Module 8/Cell 3]
29	Battery Cell [Module 8/Cell 1] Voltage Input	Battery Cell [Module 8/Cell 1]
30	Battery Cell [Module 7/Cell 9] Voltage Input	Battery Cell [Module 7/Cell 9]
31	Battery Cell [Module 7/Cell 7] Voltage Input	Battery Cell [Module 7/Cell 7]
32	Battery Cell [Module 7/Cell 5] Voltage Input	Battery Pack [Module 7]
33	Battery Cell [Module 7/Cell 3] Voltage Input	Battery Cell [Module 7/Cell 3]
34	Battery Cell [Module 6/Cell 10] Voltage Input	Battery Cell [Module 6/Cell 10]
35	Battery Cell [Module 6/Cell 7] Voltage Input	Battery Cell [Module 6/Cell 7]

Connector B [B01-B] (26-pin) - Voltage Measurement Connector

Pin No.	Description	Connected To
1	Battery Cell [Module 6/Cell 3] Voltage Input	Battery Cell [Module 6/Cell 3]
2	Battery Cell [Module 6/Bottom Line Cell] Voltage Input	Battery Pack [Module 6]
3	-	?
4	Battery Cell [Module 5/Cell 6] Voltage Input	Battery Cell [Module 5/Cell 6]
5	Battery Cell [Module 5/Cell 3] Voltage Input	Battery Cell [Module 5/Cell 3]
6	Battery Cell [Module 5/Bottom Line Cell] Voltage Input	Battery Pack [Module 5]
7	Battery Cell [Module 6/Cell 4] Voltage Input	Battery Cell [Module 6/Cell 4]
8	Battery Cell [Module 6/Cell 1] Voltage Input	Battery Cell [Module 6/Cell 1]
9	-	?
10	Battery Cell [Module 5/Cell 13] Voltage Input	Battery Cell [Module 5/Cell 13]
11	Battery Cell [Module 5/Cell 11] Voltage Input	Battery Cell [Module 5/Cell 11]
12	Battery Cell [Module 5/Cell 9] Voltage Input	Battery Cell [Module 5/Cell 9]
13	Battery Cell [Module 5/Cell 7] Voltage Input	Battery Cell [Module 5/Cell 7]
14	-	?
15	Battery Cell [Module 5/Cell 7] Voltage Input	Battery Cell [Module 5/Cell 7]
16	Battery Cell [Module 5/Cell 4] Voltage Input	Battery Cell [Module 5/Cell 4]
17	Battery Cell [Module 5/Cell 1] Voltage Input	Battery Cell [Module 5/Cell 1]
18	Battery Cell [Module 6 / Cell 5] Voltage Input	Battery Cell [Module 6/Cell 5]
19	Battery Cell [Module 6/Cell 2] Voltage Input	Battery Cell [Module 6/Cell 2]
20	Battery Cell [Module 5/Cell 14] Voltage Input	Battery Cell [Module 5/Cell 14]
21	Battery Cell [Module 5/Cell 12] Voltage Input	Battery Cell [Module 5/Cell 12]
22	Battery Cell [Module 5/Cell 10] Voltage Input	Battery Cell [Module 5/Cell 10]
23	Battery Cell [Module 10/Cell 1] Voltage Input	Battery Cell [Module 10/Cell 1]
24	-	?
25	Battery Cell [Module 5/Cell 5] Voltage Input	Battery Cell [Module 5/Cell 5]
26	Battery Cell [Module 5/Cell 2] Voltage Input	Battery Cell [Module 5/Cell 2]

Connector C [B01-C] (28-pin) - Voltage Measurement Connector

Pin No.	Description	Connected To
1	Battery Cell [Module 4/Cell 12] Voltage Input	Battery Cell [Module 4/Cell 12]
2	Battery Cell [Module 4/Cell 9] Voltage Input	Battery Cell [Module 4/Cell 9]
3	Battery Cell [Module 4/Cell 7] Voltage Input	Battery Cell [Module 4/Cell 7]
4	Battery Cell [Module 4/Cell 5] Voltage Input	Battery Cell [Module 4/Cell 5]
5	Battery Cell [Module 3/Cell 5] Voltage Input	Battery Cell [Module 3/Cell 5]
6	Battery Cell [Module 3/Cell 3] Voltage Input	Battery Cell [Module 3/Cell 3]
7	Battery Cell [Module 3/Bottom Row Cell] Voltage Input	Traction Battery [Module 3]
8	Battery Cell [Module 4/Cell 13] Voltage Input	Battery Cell [Module 4/Cell 13]
9	Battery Cell [Module 4/Cell 10] Voltage Input	Battery Cell [Module 4/Cell 10]
10	Battery Cell [Module 4/Cell 8] Voltage Input	Battery Cell [Module 4/Cell 8]
11	Battery Cell [Module 4/Cell 6] Voltage Input	Battery Cell [Module 4/Cell 6]
12	Battery Cell [Module 4/Cell 3] Voltage Input	Battery Cell [Module 4/Cell 3]
13	Battery Cell [Module 4/Cell 1] Voltage Input	Battery Cell [Module 4/Cell 1]
14	Battery Cell [Module 4/Bottom Row Cell] Voltage Input	Battery Pack [Module 4]
15	Battery Cell [Module 3/Cell 9] Voltage Input	Battery Cell [Module 3/Cell 9]
16	Battery Cell [Module 3/Cell 7] Voltage Input	Battery Cell [Module 3/Cell 7]
17	Battery Cell [Module 3/Cell 6] Voltage Input	Battery Cell [Module 3/Cell 6]
18	Battery Cell [Module 3/Cell 4] Voltage Input	Battery Cell [Module 3/Cell 4]
19	Battery Cell [Module 3/Cell 1] Voltage Input	Battery Cell [Module 3/Cell 1]
20	Battery Cell [Module 4/Cell 14] Voltage Input	Battery Cell [Module 4/Cell 14]
21	Battery Cell [Module 4/Cell 11] Voltage Input	Battery Cell [Module 4/Cell 11]
22	Battery Cell [Module 4/Cell 7] Voltage Input	Battery Cell [Module 4/Cell 7]
23	Battery Cell [Module 4/Cell 4] Voltage Input	Battery Cell [Module 4/Cell 4]
24	Battery Cell [Module 4/Cell 2] Voltage Input	Battery Cell [Module 4/Cell 2]
25	Battery Cell [Module 3/Cell 10] Voltage Input	Battery Cell [Module 3/Cell 10]
26	Battery Cell [Module 3/Cell 8] Voltage Input	Battery Cell [Module 3/Cell 8]
27	Battery Cell [Module 3/Cell 5] Voltage Input	Battery Cell [Module 3/Cell 5]
28	Battery Cell [Module 3/Cell 2] Voltage Input	Battery Cell [Module 3/Cell 2]

Connector D [B01-D] (30-pin) - Voltage Measurement Connector

Pin No.	Description	Connected To
1	Battery Cell [Module 2/Cell 8] Voltage Input	Battery Cell [Module 2/Cell 8]
2	Battery Cell [Module 2/Cell 5] Voltage Input	Battery Cell [Module 2/Cell 5]
3	Battery Cell [Module 2/Cell 3] Voltage Input	Battery Cell [Module 2/Cell 3]
4	Battery Cell [Module 2/Bottom Row Cell] Voltage Input	Battery Pack [Module 2]
5	Battery Cell [Module 1/Cell 5] Voltage Input	Battery Cell [Module 1/Cell 5]
6	Battery Cell [Module 1/Cell 2] Voltage Input	Battery Cell [Module 1/Cell 2]
7	-
8	Battery Cell [Module 2/Cell 9] Voltage Input	Battery Cell [Module 2/Cell 9]
9	Battery C