HCU Terminal And Input/Output Signal |
Terminal Function |
Connector [C133-S]
Pin No. |
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 |
Powertrain CAN [High] |
Other control modules |
79 |
Powertrain CAN [Low] |
Other control modules |
80 |
- |
|
81 |
Hybrid CAN [High] |
Other control modules |
82 |
Hybrid CAN [Low] |
Other control modules |
83 |
- |
|
84 |
- |
|
85 |
- |
|
86 |
- |
|
87 |
- |
|
88 |
- |
|
89 |
- |
|
90 |
- |
|
91 |
- |
|
92 |
- |
|
93 |
- |
|
94 |
- |
|
Input/Output signal |
Connector [C133-S]
Pin no. |
Description |
Condition |
Type |
Level |
1 |
HCU ground |
Always |
DC Voltage |
Max. 50mV |
2 |
HCU ground |
Always |
DC Voltage |
Max. 50mV |
3 |
HCU ground |
Always |
DC Voltage |
Max. 50mV |
4 |
Battery power (B+) |
Always |
DC Voltage |
Battery Voltage |
5 |
Battery power (B+) |
Always |
DC Voltage |
Battery Voltage |
6 |
Battery power (B+) |
Always |
DC Voltage |
Battery Voltage |
7 |
- |
|
|
|
8 |
- |
|
|
|
9 |
- |
|
|
|
10 |
- |
|
|
|
11 |
- |
|
|
|
12 |
- |
|
|
|
13 |
- |
|
|
|
14 |
- |
|
|
|
15 |
Brake Switch 2 signal input |
IG ON |
DC Voltage |
Battery Voltage |
16 |
Brake Switch 1 signal input |
Always |
DC Voltage |
Battery Voltage |
17 |
- |
|
|
|
18 |
- |
|
|
|
19 |
- |
|
|
|
20 |
- |
|
|
|
21 |
- |
|
|
|
22 |
- |
|
|
|
23 |
- |
|
|
|
24 |
- |
|
|
|
25 |
- |
|
|
|
26 |
- |
|
|
|
27 |
- |
|
|
|
28 |
- |
|
|
|
29 |
- |
|
|
|
30 |
- |
|
|
|
31 |
Sensor power (+5V) |
IG ON |
DC Voltage |
4.9 - 5.1V |
32 |
Sensor ground |
IG ON |
DC Voltage |
Max. 50mV |
33 |
Clutch Pressure Sensor (CPS) signal input |
IG ON |
Analog |
0.5 - 4.5V |
34 |
- |
|
|
|
35 |
- |
|
|
|
36 |
- |
|
|
|
37 |
- |
|
|
|
38 |
Start signal input |
IG ST |
DC Voltage |
Battery Voltage |
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 |
IG ON |
DC Voltage |
Battery Voltage |
74 |
- |
|
|
|
75 |
L - CAN [High] |
IG ON |
Pulse |
|
76 |
L - CAN [Low] |
IG ON |
Pulse |
|
77 |
- |
|
|
|
78 |
Powertrain CAN [High] |
IG ON |
Pulse |
Dominant:2.75 - 4.5(3.5)V Receive:2.0 - 3.0(2.5)V |
79 |
Powertrain CAN [Low] |
IG ON |
Pulse |
Receive:2.0 - 3.0(2.5)V Dominant:0.5 - 2.25(1.5)V |
80 |
- |
|
|
|
81 |
Hybrid CAN [High] |
IG ON |
Pulse |
Dominant:2.75 - 4.5(3.5)V Receive:2.0 - 3.0(2.5)V |
82 |
Hybrid CAN [Low] |
IG ON |
Pulse |
Receive:2.0 - 3.0(2.5)V Dominant:0.5 - 2.25(1.5)V |
83 |
- |
|
|
|
84 |
- |
|
|
|
85 |
- |
|
|
|
86 |
- |
|
|
|
87 |
- |
|
|
|
88 |
- |
|
|
|
89 |
- |
|
|
|
90 |
- |
|
|
|
91 |
- |
|
|
|
92 |
- |
|
|
|
93 |
- |
|
|
|
94 |
- |
|
|
|
Circuit Diagram |
Kia Niro (DE HEV) Owners Manual: Smart key
To remove the mechanical key, press and hold the release button (1) and remove
the mechanical key (2).
To reinstall the mechanical key, put the key into the hole and push it until
a click sound is heard.
WARNING - Ignition key (smart key)
Leaving children unattended in a vehicle with the igni ...
Kia Niro 2017 (DE HEV) Service Manual: Troubleshooting
Troubleshooting
Symptom
Suspected area
Engine will not start or hard to start
Vapor hose damaged or disconnected
Engine struggles to start
Malfunction of the Purge Control Solenoid Valve
...