2020 Kia Sorento LFACTORY OEM SERVICE PROCEDURE

ECM Terminal Input/Output Signal

CONNECTOR TERMINAL DESCRIPTION (C100-A)

Pin No. Description Condition Type Level
1 -      
2 -      
3 -      
4 -      
5 -      
6 -      
7 -      
8 -      
9 -      
10 -      
11 -      
12 -      
13 -      
14 -      
15 -      
16 -      
17 Engine Coolant Temperature Sensor (ECTS) signal input Idle Analog 0.5 ~ 4.5V (Idle: 1.02V)
18 -      
19 Alternator target voltage data signal output (COM) Idle Pulse High: Battery voltage (B+)
Low: Max. 1.5V
Frequency: 125Hz
20 Ignition Coil (Cylinder #2) control output Engine running Pulse Vpeak = 360 ~ 440V 125
(Idle: 333Hz)
21 Ignition Coil (Cylinder #3) control output Engine running Pulse Vpeak = 360 ~ 440V 125
(Idle: 333Hz)
22 -      
23 -      
24 -      
25 -      
26 -      
27 -      
28 -      
29 -      
30 -      
31 -      
32 -      
33 -      
34 Sensor ground Idle DC -0.3 ~ 0.5V
35 -      
36 -      
37 Sensor ground Idle DC -0.3 ~ 0.5V
38 Sensor ground Idle DC -0.3 ~ 0.5V
39 Rail Pressure Sensor (RPS) signal input Idle Analog -0.3 ~ 5.2V
40 -      
41 Ignition Coil (Cylinder #4) control output Engine running Pulse Vpeak = 360 ~ 440V 125
(Idle: 333Hz)
42 Ignition Coil (Cylinder #1) control output Engine running Pulse Vpeak = 360 ~ 440V 125
(Idle: 333Hz)
43 VCM motor [+] control output      
44 VCM motor [-] control output      
45 -      
46 -      
47 -      
48 -      
49 Sensor ground Idle DC -0.3 ~ 0.5V
50 Sensor ground Idle DC -0.3 ~ 0.5V
51 Sensor ground Idle DC -0.3 ~ 0.5V
52 -      
53 -      
54 Sensor ground Idle DC -0.3 ~ 0.5V
55 -      
56 -      
57 -      
58 -      
59 Sensor ground Idle DC -0.3 ~ 0.5V
60 Sensor ground Idle DC -0.3 ~ 0.5V
61 Sensor Shield Idle DC -0.3 ~ 0.5V
62 Sensor ground Idle DC -0.3 ~ 0.5V
63 Knock Sensor (KS) signal input Knocking Variable Frequency -0.3 ~ 0.3V
Normal 0V
64 -      
65 E-CVVT motor [-] control output      
66 E-CVVT motor [+] control output      
67 E-CVVT Relay power      
68 -      
69 -      
70 -      
71 -      
72 -      
73 -      
74 Camshaft Position Sensor (CMPS) [Bank 1/Exhaust] signal input Engine running Pulse High: 4.5 ~ 5.5V
Low: -0.3 ~ 0.5V
Frequency: 7Hz (Idle), 25Hz (3, 000 rpm)
75 Alternator electric load signal input [FR]      
76 -      
77 Feedback signal input      
78 -      
79 -      
80 Throttle Position Sensor (TPS) 2 signal input C.T Analog 4.2 ~ 5.0V
W.O.T 3.3 ~ 3.8V
81 Intake Temperature Sensor (IATS) signal input Idle Analog 0 ~ 5.0V (Idle: 2.55V)
82 Manifold Absolute Pressure Sensor (MAPS) signal input Idle Analog 0.8 ~ 1.6V
(Idle: 1.37V)
83 Rc/Rp (Pumping Cell Voltage) Idle Analog Normal: 450±50 mV
Rich: Max. Normal+150 mV
Lean: Min Normal-150 mV
84 VS-/IP- (Common Ground for VS, IP) Idle Analog Reference for V_IP, V_N
85 -      
86 E-CVVT motor [-] control output      
87 E-CVVT motor [+] control output      
88 E-CVVT Relay power      
89 ETC motor [+] control output Engine running Pulse High: Battery voltage (B+)
Low: Max.1.0V
90 ETC motor [-] control output Engine running Pulse High: Battery voltage (B+)
Low: Max.1.0V
91 -      
92 -      
93 -      
94 -      
95 Crankshaft Position Sensor (CKPS) signal input Engine running Pulse High: 4.5 ~ 5.5V
Low: -0.3 ~ 0.5V
Frequency: 850Hz (Idle), 3, 000Hz (3, 000 rpm)
96 Camshaft Position Sensor (CMPS) [Bank 1/Intake] signal input Engine running Pulse High: 4.5 ~ 5.5V
Low: -0.3 ~ 0.5V
Frequency: 7Hz (Idle), 25Hz (3, 000 rpm)
97 -      
98 -      
99 Sensor power (+5V) IG OFF DC Max. 0.5V
IG ON 4.75 ~ 5.25V
100 Throttle Position Sensor (TPS) 1 signal input C.T Analog 0.3 ~ 0.9V
W.O.T 1.5 ~ 3.0V
101 Sensor power (+5V) IG OFF DC Max. 0.5V
IG ON 4.75 ~ 5.25V
102 Sensor power (+5V) IG OFF DC Max. 0.5V
IG ON 4.75 ~ 5.25V
103 Sensor power (+5V) IG OFF DC Max. 0.5V
IG ON 4.75 ~ 5.25V
104 Rc (Compensative Resistance) Idle Analog |Rc-Rc/Rp|<±0.1V
105 VS+ (NERNST Cell Voltage) Idle Analog Normal: 450±50 mV
Rich: Max. Normal+150 mV
Lean: Min Normal-150 mV
CONNECTOR TERMINAL DESCRIPTION (C100-B)

Pin No. Description Condition Type Level
1 ECM ground Idle DC -0.3 ~ 0.5V
2 ECM ground Idle DC -0.3 ~ 0.5V
3 Battery power (B+) IG OFF DC Max. 1.0V
IG ON Battery voltage (B+)
4 ECM ground Idle DC -0.3 ~ 0.5V
5 Battery power (B+) IG OFF DC Max. 1.0V
IG ON Battery voltage (B+)
6 Battery power (B+) IG OFF DC Max. 1.0V
IG ON Battery voltage (B+)
7 -      
8 FlexRay communication [High] signal input      
9 -      
10 Brake switch [Test] signal input Brake OFF DC Battery voltage (B+)
Brake ON Max. 0.5V
11 -      
12 -      
13 Electric load signal input Lamp OFF DC Battery voltage (B+)
Lamp ON -0.3 ~ 0.5V
14 Immobilizer communication line      
15 LDC converter signal input      
16 Main relay control output Relay OFF DC Battery voltage (B+)
Relay ON -0.3 ~ 1.2V
17 -      
18 Purge Control Solenoid Valve (PCSV) control output Inactive Active Pulse High: Battery voltage (B+)
Low: Max. 1.0V
Vpeak: 42.0 ~ 60.0V
Frequency: 20Hz
19 E-CVVT Relay control output      
20 -      
21 -      
22 Injector (Cylinder #2) [High] control output Engine running PWM
G12848510Courtesy of KIA MOTORS AMERICA, INC.
23 Injector (Cylinder #2) [Low] control output Engine running Pulse
G12848511Courtesy of KIA MOTORS AMERICA, INC.
24 -      
25 FlexRay communication [Low] signal input      
26 -      
27 Brake switch [Lamp] signal input Brake OFF DC Max. 0.5V
Brake ON Battery voltage (B+)
28 -      
29 -      
30 A/C Pressure Transducer (APT) signal input      
31 Fuel Tank Pressure Sensor (FTPS) signal input Idle Analog -0.3 ~ 5.2V
32 LIN communication signal input      
33 Fuel pump relay control output Relay OFF DC Battery voltage (B+)
Relay ON -0.3 ~ 1.2V
34 Start control output Relay OFF DC Battery voltage (B+)
Relay ON -0.3 ~ 1.2V
35 Cooling fan relay [High] control output Relay OFF DC Battery voltage (B+)
Relay ON Max. 1.0V
36 -      
37 -      
38 Canister Close Valve (CCV) control output Inactive Active Pulse High: Battery voltage (B+)
Low: Max. 1.0V
Vpeak: 42.0 ~ 60.0V
39 Injector (Cylinder #3) [High] control output Engine running PWM
G12848512Courtesy of KIA MOTORS AMERICA, INC.
40 Injector (Cylinder #3) [Low] control output Engine running Pulse
G12848513Courtesy of KIA MOTORS AMERICA, INC.
41 Battery power (B+) IG OFF DC Max. 1.0V
IG ON Battery voltage (B+)
42 -      
43 -      
44 Sensor ground Idle DC -0.3 ~ 0.5V
45 -      
46 Sensor ground Idle DC -0.3 ~ 0.5V
47 Sensor ground Idle DC -0.3 ~ 0.5V
48 Sensor ground Idle DC -0.3 ~ 0.5V
49 -      
50 Sensor ground Idle DC -0.3 ~ 0.5V
51 Start relay control output Relay OFF DC Battery voltage (B+)
Relay ON -0.3 ~ 1.2V
52 -      
53 -      
54 Engine speed signal output Engine running Frequency High: Battery voltage (B+)
Low: -0.3 ~ 1.0V
Frequency: 21Hz (Idle), 100Hz (3, 000 rpm)
55 -      
56 Injector (Cylinder #4) [High] control output Engine running PWM
G12848514Courtesy of KIA MOTORS AMERICA, INC.
57 Injector (Cylinder #4) [Low] control output Engine running Pulse
G12848515Courtesy of KIA MOTORS AMERICA, INC.
58 Heated Oxygen Sensor [Bank 1/Sensor 2] signal input Idle DC Rich: 0.6 ~ 1.0V
Lean: Max. 0.4V
59 CCP-CAN [Low] Recessive Pulse 2.0 ~ 3.0V
Dominant 2.75 ~ 4.5V
60 CAN [Low] Recessive Pulse 2.0 ~ 3.0V
Dominant 2.75~4.5V
61 starter signal input S/W OFF DC -0.3 ~ 0.5V
S/W ON Battery voltage (B+)
62 -      
63 -      
64 Accelerator Position Sensor (APS) 2 signal input C.T Analog Max. 1.0V
W.O.T 1.5 ~ 3.0V
65 Accelerator Position Sensor (APS) 1 signal input C.T Analog Max. 1.0V
W.O.T Min. 4.0V
66 -      
67 -      
68 -      
69 -      
70 -      
71 Cooling fan relay [Low] control output Relay OFF DC Battery voltage (B+)
Relay ON -0.3 ~ 1.2V
72 Variable Intake Solenoid Valve (VIS) control output Active DC Max. 1.0V
Inactive Battery voltage (B+)
73 Injector (Cylinder #1) [High] control output Engine running PWM
G12848516Courtesy of KIA MOTORS AMERICA, INC.
74 Injector (Cylinder #1) [Low] control output Engine running Pulse
G12848517Courtesy of KIA MOTORS AMERICA, INC.
75 Battery power (B+) IG OFF DC Max. 1.0V
IG ON Battery voltage (B+)
76 CCP-CAN [High] Recessive Pulse 2.0 ~ 3.0V
Dominant 2.75 ~ 4.5V
77 CAN [High] Recessive Pulse 2.0 ~ 3.0V
Dominant 2.75 ~ 4.5V
78 Vehicle signal input      
79 Sensor power (+5V) IG OFF DC Max. 0.5V
IG ON 4.75 ~ 5.25V
80 -      
81 Sensor power (+5V) IG OFF DC Max. 0.5V
IG ON 4.75 ~ 5.25V
82 Sensor power (+5V) IG OFF DC Max. 0.5V
IG ON 4.75 ~ 5.25V
83 -      
84 Fuel Level Sender      
85 -      
86 CVVT Oil Control Valve (OCV) [Bank 1/Intake] control output Idle Pulse High: Battery voltage (B+)
Low: -0.3 ~ 1.0V
Frequency: 300Hz
87 -      
88 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1] Heater control output Engine running Pulse High: Battery voltage (B+)
Low: -0.3 ~ 1.0V
Frequency: 8 ~ 10Hz
Duty: 0 ~ 100%
89 Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2] Heater control output Engine running Pulse High: Battery voltage (B+)
Low: -0.3 ~ 1.0V
Frequency: 8 ~ 10Hz
Duty: 0 ~ 100%
90 Fuel Pressure Regulator Valve [High] control output Engine running PWM
G12848518Courtesy of KIA MOTORS AMERICA, INC.
91 Fuel Pressure Regulator Valve [Low] control output Engine running Pulse
G12848519Courtesy of KIA MOTORS AMERICA, INC.
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

Shop Manual-Ready ToolsCompare Repair QuoteQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.