Kia Niro: Hybrid Control System / Hybrid Power Control Unit (HPCU) Schematic diagrams

Kia Niro 2017 (DE HEV) Service Manual / Service Highlight / Hybrid Control System / Hybrid Power Control Unit (HPCU) Schematic diagrams

Hybrid Power Control Unit (HPCU) connector and high voltage cable

Hybrid Power Control Unit (HPCU) terminal And Input/Output signal

ECM Terminal Function

Connector [C133-S] (94Pin) : HPCU signal input and control

Terminal
Description
Connected to
1
HCU Ground
Chassis ground
2
HCU Ground
Chassis ground
3
HCU Ground
Chassis ground
4
Battery Power (B+)
Battery
5
Battery Power (B+)
Battery
6
Battery Power (B+)
Battery
7
-
　
8
-
　
9
-
　
10
-
　
11
-
　
12
-
　
13
-
　
14
-
　
15
Brake switch 2 signal input
Brake switch (NC, IG1)
16
Brake switch 1 signal input
Brake switch (NO, B+)
17
-
　
18
-
　
19
-
　
20
-
　
21
-
　
22
-
　
23
-
　
24
-
　
25
-
　
26
-
　
27
-
　
28
-
　
29
-
　
30
-
　
31
-

32
-

33
-

34
-
　
35
-
　
36
-
　
37
-
　
38
Start signal input
Inhibitor Switch
39
-
　
40
-
　
41
-
　
42
-
　
43
-
　
44
-
　
45
-
　
46
-
　
47
-
　
48
-
　
49
-
　
50
-
　
51
-
　
52
-
　
53
-
　
54
-
　
55
-
　
56
-
　
57
-
　
58
-
　
59
-
　
60
-
　
61
-
　
62
-
　
63
-
　
64
-
　
65
-
　
66
-
　
67
-
　
68
-
　
69
-
　
70
-
　
71
-
　
72
-
　
73
IGN signal input
Smart Key Unit
74
-

75
L - CAN [High]
Engine Clutch Actuator　
76
L - CAN [Low]
Engine Clutch Actuator　
77
-
　
78
P - CAN [High]
Other control module
79
P - CAN [Low]
Other control module
80
-
　
81
H - CAN [High]
Other control module
82
H - CAN [Low]
Other control module
83
-
　
84
-
　
85
-
　
86
-
　
87
-
　
88
-
　
89
-
　
90
-
　
91
-
　
92
-
　
93
-
　
94
-
　

High Voltage Cable [C133-P] (2 Pin) : HPCU↔Power Relay Assembly

Terminal
Description
Connected to
1
High voltage (+)
Power Relay Assembly
[Inside of High voltage battery system assembly]
2
High voltage (-)
Power Relay Assembly
 [Inside of High voltage battery system assembly]

High Voltage Cable [C133-A] (2 Pin) : HPCU↔Electric A/C compressor


 Description

1
High voltage
Electric A/C compressor
2
High voltage
Electric A/C compressor

High Voltage Cable [C133-M] (3 Pin) : HPCU↔Hybrid Drive Motor Assembly

Terminal
Description
Connected to
1
Hybrid drive motor (W) control
Hybrid Drive Motor Assembly
2
Hybrid drive motor (V) control
Hybrid Drive Motor Assembly
3
Hybrid drive motor (U) control
Hybrid Drive Motor Assembly

High Voltage Cable [C133-H] (3 Pin) : HPCU↔Hybrid Starter Generator (HSG)

Terminal
Description
Connected to
1
Hybrid Starter Generator motor (W) control
Hybrid Starter Generator (HSG)
2
Hybrid Starter Generator motor motor (V) control
Hybrid Starter Generator (HSG)
3
Hybrid Starter Generator motor motor (U) control
Hybrid Starter Generator (HSG)

Hybrid Power Control Unit (HPCU) Description and operation
Description The Hybrid Power Control Unit (HPCU) is an integrated power conversion unit which consists of the two inverters, LDC, and HCU. ...

Hybrid Power Control Unit (HPCU) Repair procedures
Removal    • Be sure to read and follow the “General Safety Information and Caution” ...

Other information:

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