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HCU Terminal And Input/Output Signal

WARNING: This page is about a different variant/trim than selected.
Fig 1: HCU Connector Terminals
G11818661Courtesy of KIA MOTORS AMERICA, INC.

Terminal Function 

CONNECTOR [E67] PIN DESCRIPTION

Pin No. Description Connected to
1 -  
2 -  
3 -  
4 -  
5 -  
6 Brake Switch 1 signal input Brake Switch (N.O)
7 -  
8 -  
9 Sensor power (+5V) Clutch Pressure Sensor (CPS)
10 -  
11 Chassis CAN [High] signal input Other control modules
12 Chassis CAN [Low] signal input Other control modules
13 -  
14 Brake Switch 2 signal input Brake Switch (N.C)
15 -  
16 -  
17 Clutch Pressure Sensor (CPS) signal input Clutch Pressure Sensor (CPS)
18 -  
19 Hybrid CAN [High] signal input Other control modules
20 Hybrid CAN [Low] signal input Other control modules
21 -  
22 -  
23 -  
24 -  
25 Sensor ground Clutch Pressure Sensor (CPS)
26 -  
27 -  
28 -  
29 -  
30 Battery power (B+) Ignition Switch (ST)
31 -  
32 -  
33 Battery power (B+) Ignition Switch (IG1)
34 Battery power (B+) Battery
35 Battery power (B+) Battery
36 -  
37 -  
38 HCU ground Chassis ground
39 HCU ground Chassis ground
40 HCU ground Chassis ground

Input/Output signal 

CONNECTOR [E67] PIN DESCRIPTION

Pin No. Description Condition Type Level
1 -      
2 -      
3 -      
4 -      
5 -      
6 Brake Switch 1 signal input Release DC Max. 0.5V
Push Battery Voltage
7 -      
8 -      
9 Sensor power (+5V) IG OFF DC Max. 0.5V
IG ON 4.5 ~ 5.5V
10 -      
11 Chassis CAN [High] signal input Recessive Pulse 2.0 ~ 3.0 V
Dominant 2.75~4.5 V
12 Chassis CAN [Low] signal input Recessive Pulse 2.0 ~ 3.0 V
Dominant 0.5~2.25 V
13 -      
14 Brake Switch 2 signal input IG OFF DC Max. 50mV
IG ON (Release) Battery Voltage
IG ON (Push) Max. 0.5V
15 -      
16 -      
17 Clutch Pressure Sensor (CPS) signal input IG OFF DC Max. 50mV
IG ON 0 ~ 5.0 V
HYBRID READY 0.5~4.5 V
18 -      
19 Hybrid CAN [High] signal input Recessive Pulse 2.0 ~ 3.0 V
Dominant 2.75~4.5 V
20 Hybrid CAN [Low] signal input Recessive Pulse 2.0 ~ 3.0 V
Dominant 0.5~2.25 V
21 -      
22 -      
23 -      
24 -      
25 Sensor ground IG OFF DC Max. 50mV
IG ON
26 -      
27 -      
28 -      
29 -      
30 Battery power (B+) IG OFF DC Max. 0.5V
IG ON
IG ST Battery Voltage
31 -      
32 -      
33 Battery power (B+) IG OFF DC Max. 0.5V
IG ON Battery Voltage
34 Battery power (B+) IG OFF DC Battery Voltage
IG ON
35 Battery power (B+) IG OFF DC Battery Voltage
IG ON
36 -      
37 -      
38 HCU ground IG OFF DC Max. 50mV
IG ON
39 HCU ground IG OFF DC Max. 50mV
IG ON
40 HCU ground IG OFF DC Max. 50mV
IG ON