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
 -
 　
 　
 　

Description and operation
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Engine Control Module (ECM) Repair procedures
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Other information:

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