Kia Niro: Engine Control System / Engine Control Module (ECM) Schematic diagrams

Kia Niro 2017 (DE HEV) Service Manual / Engine Control/Fuel System / Engine Control System / Engine Control Module (ECM) Schematic diagrams

ECM Terminal And Input/Output signal

ECM Terminal Function

Connector [A]

Pin No.
Description
Connected to
1
Injector (Cylinder #3) [Low] control
Injector (Cylinder #3)
2
Injector (Cylinder #4) [High] control
Injector (Cylinder #4)
3
Injector (Cylinder #4) [Low] control
Injector (Cylinder #4)
4
Engine speed signal output
Smart Key Control Module [Smart key type] / Immobilizer Module [Immobilizer type]
5
EGR Valve (Motor -)
Electric Exhaust Gas Recirculation (EGR) Valve
6
Sensor power (+5V)
Throttle Position Sensor (TPS) 1, 2
7
Sensor power (+5V)
Electric Exhaust Gas Recirculation (EGR) Valve
8
Knock Sensor (KS) signal input
Knock Sensor (KS)
9
Camshaft Position Sensor (CMPS) [Bank 1/Exhaust] signal input
Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust]
10
-
 
11
Brake switch [Test] signal input
Brake switch
12
Brake switch [Lamp] signal input
Brake switch
13
-
 
14
-
 
15
-
 
16
Injector (Cylinder #3) [High] control
Injector (Cylinder #3)
17
Injector (Cylinder #1) [High] control
Injector (Cylinder #1)
18
Injector (Cylinder #1) [Low] control
Injector (Cylinder #1)
19
-
 
20
EGR Valve (Motor +)
Electric Exhaust Gas Recirculation (EGR) Valve
21
Sensor shield
Knock Sensor (KS)
22
Sensor ground (-)
Knock Sensor (KS)
23
-
 
24
Sensor ground
Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust]
25
-
 
26
-
 
27
-
 
28
-
 
29
-
 
30
-
 
31
Injector (Cylinder #2) [High] control
Injector (Cylinder #2) 
32
-
 
33
ETC Motor [-] control
ETC Motor
34
Sensor ground
Throttle Position Sensor (TPS) 1, 2
35
Throttle Position Sensor (TPS) 1 signal input
Throttle Position Sensor (TPS) 1
36
Sensor ground
Rail Pressure Sensor (RPS)
37
Rail Pressure Sensor (RPS) signal input
Rail Pressure Sensor (RPS)
38
-
 
39
Camshaft Position Sensor (CMPS) [Bank 1/Intake] signal input
Camshaft Position Sensor (CMPS) [Bank 1/Intake]
40
-
 
41
-
 
42
-
 
43
VS-/IP- (Virtual Ground)
Heated Oxygen Sensor [Bank 1/Sensor 1] 
44
Rc (Compensative Resistance)
Heated Oxygen Sensor [Bank 1/Sensor 1] 
45
Sensor ground
Heated Oxygen Sensor [Bank 1/Sensor 2] 
46
Injector (Cylinder #2) [Low] control
Injector (Cylinder #2)
47
-
 
48
ETC Motor [+] control
ETC Motor
49
-
 
50
Throttle Position Sensor (TPS) 2 signal input
Throttle Position Sensor (TPS) 2
51
Sensor power (+5V)
Rail Pressure Sensor (RPS)
52
Electric load  signal input
Wiper Motor
53
Sensor ground
Camshaft Position Sensor (CMPS) [Bank 1/Intake]
54
Sensor ground
Electric Exhaust Gas Recirculation (EGR) Valve
55
EGR Valve (Feedback signal)
Electric Exhaust Gas Recirculation (EGR) Valve
56
-
 
57
-
 
58
VS+ (NERNST cell voltage)
Heated Oxygen Sensor [Bank 1/Sensor 1] 
59
Rc/Rp (Pumping cell voltage)
Heated Oxygen Sensor [Bank 1/Sensor 1] 
60
Heated Oxygen Sensor [Bank 1/Sensor 2] signal input
Heated Oxygen Sensor [Bank 1/Sensor 2] 

Connector [K]

Pin No.
Description
Connected to
1
ECM Ground
Chassis ground
2
Battery power (B+)
Main Relay
3
ECM Ground
Chassis ground
4
Battery power (B+)
Main Relay
5
ECM Ground
Chassis ground
6
Battery power (B+)
Main Relay
7
Fuel Pressure Control Valve [High] control
Fuel Pressure Control Valve (FPCV)
8
-
 
9
-
 
10
Engine Coolant Sensor (ECTS) signal input [EGR cooler tube]
Engine Coolant Sensor (ECTS) [EGR cooler tube]
11
Sensor ground
Engine Coolant Sensor (ECTS) [EGR cooler tube]
12
Vehicle signal input
Active Hydraulic Boost (AHB) System
Smart key control module
13
-
 
14
-
 
15
Accelerator Position Sensor (APS) 2 signal input
Accelerator Position Sensor (APS) 2
16
Sensor power (+5V)
Accelerator Position Sensor (APS) 2
17
Sensor power (+5V)
Manifold Absolute Pressure Sensor (MAPS) & Intake Air Temperature Sensor (IATS)
18
Sensor power (+5V)
Accelerator Position Sensor (APS) 1
19
Accelerator Position Sensor (APS) 1 signal input
Accelerator Position Sensor (APS) 1
20
Sensor power (+5V)
Crankshaft Position Sensor Sensor (CKPS)
A/C Pressure Transducer (APT)
 
21
-
 
22
-
 
23
-
 
24
Fuel pump relay control
Fuel pump relay
25
-
 
26
-
 
27
-
 
28
-
 
29
Fuel Pressure Control Valve [Low] control
Fuel Pressure Control Valve(FPCV)
30
A/C Pressure Transducer (APT) signal input
A/C Pressure Transducer (APT)
31
-
 
32
Crankshaft Position Sensor Sensor (CKPS) signal input
Crankshaft Position Sensor Sensor (CKPS)
33
-
 
34
-
 
35
-
 
36
-
 
37
Sensor ground (-)
Accelerator Position Sensor (APS) 2
38
Manifold Absolute Pressure Sensor (MAPS) signal input
Manifold Absolute Pressure Sensor (MAPS) & Intake Air Temperature Sensor (IATS)
39
Intake Air Temperature Sensor (IATS) signal input
Manifold Absolute Pressure Sensor (MAPS) & Intake Air Temperature Sensor (IATS)
40
Sensor ground (-)
Manifold Absolute Pressure Sensor (MAPS) & Intake Air Temperature Sensor (IATS)
41
Sensor ground (-)
Accelerator Position Sensor (APS) 1
42
-
 
43
-
 
44
Mass Air Flow Sensor (MAFS) signal input
Mass Air Flow Sensor (MAFS)
45
Sensor ground (-)
Mass Air Flow Sensor (MAFS)
46
Main Relay control
Main Relay
47
Variable Force Solenoid (VFS) [Bank 1/ Intake] control
Variable Force Solenoid (VFS) [Bank 1/ Intake]
48
 
 
49
-
 
50
-
 
51
Battery power (B+)
Ignition Switch
52
-
 
53
-
 
54
Sensor ground (-)
Crankshaft Position Sensor Sensor (CKPS)
55
P-CAN [High]
Other control module, Data Link Connector (DLC), Multi-Purpose Check Connector
56
H-CAN [High]
Other control module, Data Link Connector (DLC), Multi-Purpose Check Connector
57
-
 
58
Immobilizer communication line
Smart key control module
59
-
 
60
Engine Coolant Sensor (ECTS) signal input [Water Temperature Control Assembly]
Engine Coolant Sensor (ECTS) [Water Temperature Control Assembly]
61
Sensor ground
Engine Coolant Sensor (ECTS) [Water Temperature Control Assembly]
62
 
 
63
-
 
64
Ignition Coil (Cylinder #2) control
Ignition Coil (Cylinder #2)
65
Ignition Coil (Cylinder #3) control
Ignition Coil (Cylinder #3)
66
-
 
67
-
 
68
Cooling fan relay control
Cooling Fan Relay
69
-
 
70
CVVT Oil Control Valve (OCV)  (OCV) [Bank 1/ Exhaust] control
CVVT Oil Control Valve (OCV)  (OCV) [Bank 1/ Exhaust]
71
-
 
72
-
 
73
Battery power (B+)
Battery
74
-
 
75
Sensor ground (-)
A/C Pressure Transducer (APT)
76
Local Interconnect Network (LIN) Serial Bus Line
Battery Sensor
77
P-CAN [Low]
Other control module, Data Link Connector (DLC), Multi-Purpose Check Connector
78
H-CAN [Low]
Other control module, Data Link Connector (DLC), Multi-Purpose Check Connector
79
-
 
80
-
 
81
-
 
82
-
 
83
-
 
84
-
 
85
-
 
86
Ignition Coil (Cylinder #4) control
Ignition Coil (Cylinder #4)
87
Ignition Coil (Cylinder #1) control
Ignition Coil (Cylinder #1)
88
-
 
89
-
 
90
-
 
91
Heated Oxygen Sensor (HO2S) [Bank 1/Sensor1] Heater control
Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
92
Heated Oxygen Sensor (HO2S) [Bank 1/Sensor2] Heater control
Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
93
Purge Control Solenoid Valve (PCSV) control
Purge Control Solenoid Valve (PCSV)
94
-
 

ECM Terminal Input/Output Signal

Connector [A]

Pin No.
Description
Condition
Type
Level
1
Injector (Cylinder #3) [Low] control
Relay OFF
DC Voltage
71V
Relay ON
Max. 1.0V
2
Injector (Cylinder #4) [High] control
Relay OFF
DC Voltage
71V
Relay ON
Max. 1.0V
3
Injector (Cylinder #4) [Low] control
Relay OFF
DC Voltage
71V
Relay ON
Max. 1.0V
4
Engine speed signal output
Idle
Pulse
High: Battery Voltage
Low: Max. 0.6V
5
EGR Valve (Motor -)
 
 
 
6
Sensor power (+5V)
IG OFF
DC Voltage
Max. 0.5V
IG ON
4.9 - 5.1V
7
Sensor power (+5V)
IG OFF
DC Voltage
Max. 50mV
IG ON
4.9 - 5.1V
8
Knock Sensor (KS) signal input
Knocking
Variable
Frequency
-0.3 - 0.3V
Normal
0V
9
Camshaft Position Sensor (CMPS) [Bank 1/Exhaust] signal input
Engine Run
Pulse
High: 4.5 - 5.5V
Low: -0.3 - 0.5V
Frequency: 7Hz (Idle), 25Hz (3,000rpm)
10
-
 
 
 
11
Brake switch [Test] signal input
Brake OFF
DC Voltage
Battery Voltage (B+)
Brake ON
Max. 50mV
12
Brake switch [Lamp] signal input
Brake OFF
DC Voltage
Max. 50mV
Brake ON
Battery Voltage (B+)
13
-
 
 
 
14
-
 
 
 
15
-
 
 
 
16
Injector (Cylinder #3) [High] control
Relay ON/OFF
DC Voltage
71V
17
Injector (Cylinder #1) [High] control
Relay ON/OFF
DC Voltage
71V
18
Injector (Cylinder #1) [Low] control
Relay OFF
DC Voltage
71V
Relay ON
Max. 1.0V
19
-
 
 
 
20
EGR Valve (Motor +)
 
 
 
21
Sensor shield
Idle
DC Voltage
Max. 50mV
22
Sensor ground (-)
Idle
DC Voltage
Max. 50mV
23
-
 
 
 
24
Sensor ground (-)
Idle
DC Voltage
Max. 50mV
25
-
 
 
 
26
-
 
 
 
27
-
 
 
 
28
-
 
 
 
29
-
 
 
 
30
-
 
 
 
31
Injector (Cylinder #2) [High] control
Relay ON/OFF
DC Voltage
71V
32
-
 
 
 
33
ETC Motor [-] control
 
 
 
34
Sensor ground (-)
Idle
DC Voltage
Max. 50mV
35
Throttle Position Sensor (TPS) 1 signal input
C.T
Analog
0.3 - 0.9V
W.O.T
1.5 - 3.0V
36
Sensor ground (-)
Idle
DC Voltage
Max. 50mV
37
Rail Pressure Sensor (RPS) signal input
Idle
Analog
-0.3 - 5.2V
38
-
 
 
 
39
Camshaft Position Sensor (CMPS) [Bank 1/Intake] signal input
Engine Run
Pulse
High: 4.5 - 5.5V
Low: -0.3 - 0.5V
Frequency: 7Hz (Idle), 25Hz (3,000rpm)
40
-
 
 
 
41
-
 
 
 
42
-
 
 
 
43
VS-/IP- (Common Ground for VS, IP)
Idle
Analog
Reference for V_IP, V_N
44
Rc (Compensative Resistance)
Idle
Analog
│Rc-Rc/Rp│<±0.1V
45
Sensor ground
Idle
DC Voltage
Max. 50mV
46
Injector (Cylinder #2) [Low] control
Relay OFF
DC Voltage
71V
Relay ON
Max. 1.0V
47
-
 
 
 
48
ETC Motor [+] control
Engine Run
Pulse
High: Battery Voltage (B+)
Low: Max.1.0V
49
-
 
 
 
50
Throttle Position Sensor (TPS) 2 signal input
C.T
Analog
4.2 - 5.0V
W.O.T
3.3 - 3.8V
51
Sensor power (+5V)
IG OFF
DC Voltage
Max. 50mV
IG ON
4.9 - 5.1V
52
Electric load  signal input
Lamp OFF
DC Voltage
Battery Voltage (B+)
Lamp ON
Max. 50mV
53
Sensor ground
Idle
DC Voltage
Max. 50mV
54
Sensor ground
Idle
DC Voltage
Max. 50mV
55
EGR Valve (Feedback signal)
 
 
 
56
-
 
 
 
57
-
 
 
 
58
VS+ (NERNST cell voltage)
Idle
Analog
Normal: 450±50mV
Rich: Max. Normal+150mV
Lean: Min. Normal-150mV
59
Rc/Rp (Pumping cell voltage)
Idle
Analog
Normal: 450±50mV
Rich: Max. Normal+150mV
Lean: Min. Normal-150mV
60
Heated Oxygen Sensor [Bank 1/Sensor 2] signal input
Idle
DC Voltage
Rich: 0.6 - 1.0V
Lean: Max. 0.4V

Connector [K]

Pin No.
Description
Condition
Type
Level
1
ECM Ground (-)
Idle
DC Voltage
-0.3 - 0.5V
2
Battery power (B+)
IG OFF
DC Voltage
Max. 1.0V
IG ON
Battery Voltage (B+)
3
ECM Ground (-)
Idle
DC Voltage
-0.3 - 0.5V
4
Battery power (B+)
IG OFF
DC Voltage
Max. 1.0V
IG ON
Battery Voltage (B+)
5
ECM Ground (-)
Idle
DC Voltage
-0.3 - 0.5V
6
Battery power (B+)
IG OFF
DC Voltage
Max. 1.0V
IG ON
Battery Voltage (B+)
7
Fuel Pressure Control Valve (FPCV)[High] control
Engine Run
PWM

8
-
 
 
 
9
-
 
 
 
10
Engine Coolant Sensor (ECTS) signal input [EGR cooler tube]
Idle
Analog
0.5 - 4.5V
(Idle: 1.02V)
11
Sensor ground
Idle
DC Voltage
Max. 50mV
12
Vehicle signal input
 
 
 
13
-
 
 
 
14
-
 
 
 
15
Accelerator Position Sensor (APS) 2 signal input
C.T
Analog
Max. 1.0V
W.O.T
1.5 - 3.0V
16
Sensor power (+5V)
IG OFF
DC Voltage
Max. 50mV
IG ON
4.9 - 5.1V
17
Sensor power (+5V)
IG OFF
DC Voltage
Max. 50mV
IG ON
4.9 - 5.1V
18
Sensor power (+5V)
IG OFF
DC Voltage
Max. 50mV
IG ON
4.9 - 5.1V
19
Accelerator Position Sensor (APS) 1 signal input
C.T
Analog
Max. 1.0V
W.O.T
Min. 4.0V
20
Sensor power (+5V)
IG OFF
DC Voltage
Max. 50mV
IG ON
4.9 - 5.1V
21
-
 
 
 
22
-
 
 
 
23
-
 
 
 
24
Fuel pump relay control
Relay OFF
DC Voltage
Battery Voltage (B+)
Relay ON
-0.3 - 1.2V
25
-
 
 
 
26
-
 
 
 
27
-
 
 
 
28
-
 
 
 
29
Fuel Pressure Control Valve [Low] control
Engine Run
PWM

30
A/C Pressure Transducer (APT) signal input
A/C ON
Analog
0.348 - 4.63 V
31
-
 
 
 
32
Crankshaft Position Sensor Sensor (CKPS) signal input
Engine Run
Pulse
High: 4.5 - 5.5V
Low: - 0.3 - 0.5V
Frequency: 850Hz (Idle), 3,000Hz (3,000rpm)
33
-
 
 
 
34
-
 
 
 
35
-
 
 
 
36
-
 
 
 
37
Sensor ground (-)
Idle
DC Voltage
Max. 50mV
38
Manifold Absolute Pressure Sensor (MAPS) signal input
Idle
Analog
0.8 - 1.6V (Idle: 1.37V)
39
Intake Temperature Sensor (IATS) signal input
Idle
Analog
0 - 5.0V (Idle: 2.55V)
40
Sensor ground (-)
Idle
DC Voltage
Max. 50mV
41
Sensor ground (-)
Idle
DC Voltage
Max. 50mV
42
-
 
 
 
43
-
 
 
 
44
Mass Air Flow Sensor (MAFS) signal input
 
 
 
45
Sensor ground
Idle
DC Voltage
Max. 50mV
46
Main Relay control
Relay OFF
DC Voltage
Battery Voltage (B+)
Relay ON
-0.3 - 1.2V
47
Variable Force Solenoid (VFS) [Bank 1/ Intake] control
 
 
 
48
-
 
 
 
49
-
 
 
 
50
-
 
 
 
51
Battery power (B+)
IG OFF
DC Voltage
Max. 1.0V
IG ON
Battery Voltage (B+)
52
-
 
 
 
53
-
 
 
 
54
Sensor ground (-)
Idle
DC Voltage
Max. 50mV
55
P-CAN [High]
Recessive
Pulse
2.0 - 3.0V
Dominant
2.75 - 4.5V
56
H-CAN [High]
Recessive
Pulse
2.0 - 3.0V
Dominant
2.75 - 4.5V
57
-
 
 
 
58
Immobilizer communication line
 
 
 
59
-
 
 
 
60
Engine Coolant Sensor (ECTS) signal input [Water Temperature Control Assembly]
 
 
 
61
Sensor ground
Idle
DC Voltage
Max. 50mV
62
 
 
 
 
63
-
 
 
 
64
Ignition Coil (Cylinder #2) control
Engine Run
Pulse
Vpeak = 360 - 440V
125
65
Ignition Coil (Cylinder #3) control
Engine Run
Pulse
Vpeak = 360 - 440V
125
66
-
 
 
 
67
-
 
 
 
68
Cooling fan relay control
 
 
 
69
-
 
 
 
70
CVVT Oil Control Valve (OCV)  (OCV) [Bank 1/ Exhaust] control
Idle
Pulse
High: Battery Voltage (B+)
Low: -0.3 - 1.0V
Frequency: 300Hz
71
-
 
 
 
72
-
 
 
 
73
Battery power (B+)
IG OFF
DC Voltage
Max. 1.0V
IG ON
Battery Voltage (B+)
74
-
 
 
 
75
Sensor ground (-)
Idle
DC Voltage
Max. 50mV
76
Local Interconnect Network (LIN) Serial Bus Line
 
 
 
77
P-CAN [Low]
Recessive
Pulse
2.0 - 3.0V
Dominant
2.75 - 4.5V
78
H-CAN [Low]
Recessive
Pulse
2.0 - 3.0V
Dominant
2.75 - 4.5V
79
-
 
 
 
80
-
 
 
 
81
-
 
 
 
82
-
 
 
 
83
 
 
 
 
84
Sensor ground (-)
Idle
DC Voltage
Max. 50mV
85
-
 
 
 
86
Ignition Coil (Cylinder #4) control
Engine Run
Pulse
Vpeak = 360 - 440V
125
87
Ignition Coil (Cylinder #1) control
Engine Run
Pulse
Vpeak = 360 - 440V
125
88
-
 
 
 
89
-
 
 
 
90
-
 
 
 
91
Heated Oxygen Sensor (HO2S) [Bank 1/Sensor1] Heater control
Engine Run
Pulse
High: Battery Voltage (B+)
Low: -0.3 - 1.0V
Frequency: 8 - 10Hz
Duty: 0 - 100%
92
Heated Oxygen Sensor (HO2S) [Bank 1/Sensor2] Heater control
Engine Run
Pulse
High: Battery Voltage (B+)
Low: -0.3 - 1.0V
Frequency: 8 - 10Hz
Duty: 0 - 100%
93
Purge Control Solenoid Valve (PCSV) control
Inactive Active
Pulse
High: Battery Voltage (B+)
Low: Max. 1.0V
Vpeak: 42.0 - 60.0V
Frequency: 20Hz
94
-
 
 
 

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