Contents Wiring diagrams Section: Testing & Diagnostics All sections

Engine Control System - Hev: Other Kia Optima III

Testing & Diagnostics 8 illustrations ~268 words

ECM Terminal Function

Pin No.DescriptionConnected to
1Power groundChassis Ground
2Battery power (B+)Ignition Switch
3Power groundChassis Ground
4Battery power (B+)Main Relay
5Power groundChassis Ground
6Battery power (B+)Battery
7
8
9Fuel Level Sender (FLS) signal inputFuel Level Sender (FLS)
10
11
12Knock Sensor (KS) signal inputKnock Sensor (KS)
13Sensor groundAccelerator Position Sensor (APS) 2
14Sensor groundEngine Coolant Temperature Sensor (ECTS)
15Camshaft Position Sensor (CMPS) [Bank 1/Exhaust] signal inputCamshaft Position Sensor (CMPS) [Bank 1/Exhaust]
16
17Crankshaft Position Sensor (CKPS) signal inputCrankshaft Position Sensor (CKPS)
18Rc / Rp (Pump Cell Voltage)Heated Oxygen Sensor [Bank 1/Sensor 1]
19VS + (NERNST Cell Voltage)Heated Oxygen Sensor [Bank 1/Sensor 1]
20VS - / IP - (Common Ground for VS, IP)Heated Oxygen Sensor [Bank 1/Sensor 1]
21
22
23
24
25Injector (Cylinder #1) control outputInjector (Cylinder #1)
26Injector (Cylinder #3) control outputInjector (Cylinder #3)
27Injector (Cylinder #4) control outputInjector (Cylinder #4)
28Injector (Cylinder #2) control outputInjector (Cylinder #2)
29
30Sensor power (+5V)Manifold Absolute Pressure Sensor (MAPS)
31Manifold Absolute Pressure Sensor (MAPS) signal inputManifold Absolute Pressure Sensor (MAPS)
32Throttle Position Sensor (TPS) 2 signal inputThrottle Position Sensor (TPS) 2
33Engine Coolant Temperature Sensor (ECTS) signal inputEngine Coolant Temperature Sensor (ECTS)
34Sensor groundKnock Sensor (KS)
35Accelerator Position Sensor (APS) 2 signal inputAccelerator Position Sensor (APS) 2
36Sensor power (+5V)Accelerator Position Sensor (APS) 2
37Sensor groundCamshaft Position Sensor (CMPS) [Bank 1/Exhaust]
38
39Sensor groundCrankshaft Position Sensor (CKPS)
40Vehicle speed signal inputESP Control Unit
41
42Rc (Compensative Resistance)Heated Oxygen Sensor [Bank 1/Sensor 1]
43Sensor power (+5V)A/C Pressure Transducer (APT)
44
45
46NVLD communication lineNVLD (Natural Vacuum Leakage Detection)
47
48
49
50HEV READY signal outputPower Distribution Module (PDM)
51Battery power (B+)Main Relay
52Fuel Tank Pressure Sensor (FTPS) signal inputFuel Tank Pressure Sensor (FTPS)
53Intake Air Temperature Sensor (IATS) signal inputIntake Air Temperature Sensor (IATS)
54A/C Pressure Transducer (APT) signal inputA/C Pressure Transducer (APT)
55
56
57Sensor groundA/C Pressure Transducer (APT)
58
59Sensor groundThrottle Position Sensor (TPS) 1, 2
60Sensor power (+5V)Accelerator Position Sensor (APS) 1
61Sensor groundAccelerator Position Sensor (APS) 1
62Camshaft Position Sensor (CMPS) [Bank 1/Intake] signal inputCamshaft Position Sensor (CMPS) [Bank 1/Intake]
63Sensor power (+5V)Throttle Position Sensor (TPS) 1, 2
64Main Relay control outputMain Relay
65Cooling Fan Relay [Low] control outputCooling Fan Relay [Low]
66CVVT Oil Control (OCV) Valve [Bank 1/Intake] control outputCVVT Oil Control Valve (OCV) [Bank 1/Intake]
67Purge Control Solenoid Valve (PCSV) control outputPurge Control Solenoid Valve (PCSV)
68CVVT Oil Control (OCV) Valve [Bank 1/Exhaust] control outputCVVT Oil Control Valve (OCV) [Bank 1/Exhaust]
69
70Fuel Pump Relay control outputFuel Pump Relay
71ETC Motor [+] control outputETC Motor
72ETC Motor [-] control outputETC Motor
73Sensor groundFuel Tank Pressure Sensor (FTPS)
74Sensor groundManifold Absolute Pressure Sensor (MAPS)
75Immobilizer communication lineImmobilizer Control
76
77CAN [High]Other control module, Data Link Connector (DLC)
78CAN [Low]Other control module, Data Link Connector (DLC)
79
80Throttle Position Sensor (TPS) 1 signal inputThrottle Position Sensor (TPS) 1
81
82Accelerator Position Sensor (APS) 1 signal inputAccelerator Position Sensor (APS) 1
83Sensor groundCamshaft Position Sensor (CMPS) [Bank 1/Intake]
84Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2] signal inputHeated Oxygen Sensor (HO2S) [Bank 1/Sensor 2]
85Sensor groundHeated Oxygen Sensor (HO2S) [Bank 1/Sensor 2]
86
87
88Cooling Fan Relay [High] control outputCooling Fan Relay [High]
89
90
91Canister Close Valve (CCV) control outputCanister Close Valve (CCV)
92Malfunction Indicator Lamp (MIL) control outputMalfunction Indicator Lamp (MIL)
93Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1] Heater control outputHeated Oxygen Sensor (HO2S) [Bank 1/Sensor 1]
94Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2] Heater control outputHeated Oxygen Sensor (HO2S) [Bank 1/Sensor 2]

CONNECTOR [CHG-K] INFORMATION

Pin No.DescriptionConnected to
1Ignition Coil (Cylinder #1) control output (Without immobilizer)Ignition Coil (Cylinder #1)
Ignition Coil (Cylinder #4) control output (With immobilizer)Ignition Coil (Cylinder #4)
2ShieldIgnition Coil (Cylinder #1, 2, 3, 4)
3
4
5
6
7
8
9
10
11
12
13Electrical load [Wiper] signal inputWiper [Low] Relay
14
15
16Ignition Coil (Cylinder #3) control output (Without immobilizer)Ignition Coil (Cylinder #3)
Ignition Coil (Cylinder #2) control output (With immobilizer)Ignition Coil (Cylinder #2)
17
18
19
20
21
22
23
24
25
26
27
28
29Brake Switch 1 signal inputBrake Switch
30
31Ignition Coil (Cylinder #4) control output (Without immobilizer)Ignition Coil (Cylinder #4)
Ignition Coil (Cylinder #1) control output (With immobilizer)Ignition Coil (Cylinder #1)
32
33
34
35
36
37
38
39
40
41
42
43
44Brake Switch 2 signal inputBrake Switch
45
46Ignition Coil (Cylinder #2) control output (Without immobilizer)Ignition Coil (Cylinder #2)
Ignition Coil (Cylinder #3) control output (With immobilizerIgnition Coil (Cylinder #3)
47
48
49
50
51
52
53
54
55H-CAN [High]Other control module, Data Link Connector (DLC)
56H-CAN [Low]Other control module, Data Link Connector (DLC)
57
58
59
60

CONNECTOR [CHG-A] INFORMATION

ECM Terminal Input/Output signal

Note. Engine related parameters will only have valid values when the engine is requested to run by the HPCU (HEV control module). When engine does not run values will be invalid.

Pin No.DescriptionConditionTypeLevelTest Result
1Power groundIdleDCMax. 50mV
2Battery power (B+)IG OFFDCMax. 0.5V10.2mV
IG ONBattery Voltage12.02V
3Power groundIdleDCMax. 50mV2.8mV
4Battery power (B+)IG OFFDCMax. 1.0V3.1mV
IG ONBattery Voltage12.1V
5Power groundIdleDCMax. 50mV1.8mV
6Battery power (B+)Always (Without Ignition key)CurrentBelow 2.0 mA0.4 mA
DCBattery Voltage12.88V
7
8
9Fuel Level Sender (FLS) signal input
10
11
12Knock Sensor (KS) signal inputKnockingVariable Frequency0.3 ~ 0.3V
Normal0 V
13Sensor groundIdleDCMax. 50mV30mV
14Sensor groundIdleDCMax. 50mV12.4mV
15Camshaft Position Sensor (CMPS) [Bank 1/Exhaust] signal inputIdlePulseHI: Vcc or Battery Voltage5.0V
LO: Max. 0.5V0.2V
FREQ: 5.36Hz
16
17Crankshaft Position Sensor (CKPS) signal inputIdlePulseHI: Vcc or Battery Voltage5.00V
LO: Max. 0.5V40mV
FREQ: 600Hz
18Rc/Rp (Pump Cell Voltage)IdleAnalogNormal: 450±50 mV
Rich: Max. Normal+150 mV
Lean: Min. Normal-150 mV
19VS+ (NERNST Cell Voltage)IdleAnalogNormal: 450±50 mV
Rich: Max. Normal+150 mV
Lean: Min. Normal-150 mV
20VS-/IP- (Common Ground for VS, IP)IdleAnalogReference for V_IP, V_N
21
22
23
24
25Injector (Cylinder #1) control outputIdlePulseHI: Battery Voltage13.8V
LO: Max. 1.0V200mV
Vpeak: Max. 80V54.1V
Frequency5.21Hz
Dwell Time2.74ms
26Injector (Cylinder #3) control outputIdlePulseHI: Battery Voltage13.9V
LO: Max. 1.0V170mV
Vpeak: Max. 80V53.9V
Frequency5.18Hz
Dwell Time2.73ms
27Injector (Cylinder #4) control outputIdlePulseHI: Battery Voltage14V
LO: Max. 1.0V160mV
Vpeak: Max. 80V54.3V
Frequency5.24Hz
Dwell Time2.70ms
28Injector (Cylinder #2) control outputIdlePulseHI: Battery Voltage14.1V
LO: Max. 1.0V160mV
Vpeak: Max. 80V53.9V
Frequency5.21Hz 5.21Hz
Dwell Time2.73ms 2.74ms
29
30Sensor power (+5V)IG OFFDCMax. 0.5V0mV
IG ON4.9 ~ 5.1V4.98V
31Manifold Absolute Pressure Sensor (MAPS) signal inputIdleAnalog0.8 ~ 1.6V1.37V
32Throttle Position Sensor (TPS) 2 signal inputC.TAnalog4.2 ~ 5.0V4.52V
W.O.T3.3 ~ 3.8V3.68V
33Engine Coolant Temperature Sensor (ECTS) signal inputIdleAnalog0.5 ~ 4.5V1.02V
34Sensor groundIdleDCMax. 50mV8mV
35Accelerator Position Sensor (APS) 2 signal inputC.TAnalogMax. 1.0V0.4V
W.O.T1.5 ~ 3.0V1.9V
36Sensor power (+5V)IG OFFDCMax. 0.5V5mV
IG ON4.9 ~ 5.1V5.02V
37Sensor groundIdleDCMax. 50mV11mV
38
39Sensor groundIdleDCMax. 50mV11mV
40Vehicle speed signal inputVehicle RunPulseHI: Min. 4.5V5.0V
LO: Max. 0.5V0V
Frequency46.9Hz at Idle
Duty(-)50.4% at Idle
41
42Rc (Compensative Resistance)IdleAnalogRc-Rc/Rp | <±0.1V
43Sensor power (+5V)IG OFFDCMax. 0.5V
IG ON4.9 ~ 5.1V
44
45
46NVLD communication lineIG ONPulseHi: Battery Voltage Lo: Max. 1.0V
47
48
49
50HEV READY signal outputIG ONDCHi: Vcc or Battery Voltage Lo: Max. 1.0V
51Battery power (B+)IG OFFDCMax. 1.0V3.1mV
IG ONBattery Voltage12.3V
52Fuel Tank Pressure Sensor (FTPS) signal inputIdleAnalog0.4 ~ 4.6V
53Intake Air Temperature Sensor (IATS) signal inputIdleAnalog0 ~ 5.0V2.55V
54A/C Pressure Transducer (APT) signal inputIdleDC0.4 ~ 4.6VA/C OFF: 1.29V A/C ON: 2.01V
55
56
57Sensor groundIdleDCMax. 50mV11mV
58
59Sensor groundIdleDCMax. 50mV6mV
60Sensor power (+5V)IG OFFDCMax. 0.5V10mV
IG ON4.9 ~ 5.1V5.02V
61Sensor groundIdleDCMax. 50mV30mV
62Camshaft Position Sensor (CMPS) [Bank 1/Intake] signal inputIdlePulseHI: Vcc or Battery Voltage5.0V
LO: Max. 0.5V0.2V
Frequency5.2Hz
63Sensor power (+5V)IG OFFDCMax. 0.5V0V
IG ON4.9 ~ 5.1V5.03V
64Main Relay control outputRelay OFFDCBattery Voltage12.3V
Relay ONMax. 1.0V730mV
65Cooling Fan Relay [Low] control outputA/C ONPulseHI: Battery Voltage10.4V
LO: 0 ~ 0.5V60mV
66CVVT Oil control (OCV) Valve [Bank 1/Intake] control outputIdlePulseHI: Battery Voltage15.0V
LO: Max. 1.0V120mV
Frequency300Hz
Duty(+)84.70%
67Purge control Solenoid Valve (PCSV) control outputInactive ActivePulseHI: Battery Voltage14.3V
LO: Max. 1.0V80mV
Vpeak: Max. 70V57.0V
Frequency16Hz
68CVVT Oil control (OCV) Valve [Bank 1/Exhaust] control outputIdlePulseHI: Battery Voltage13.5V
LO: Max. 1.0V100mV
Vpeak: Max.70V13.5V
Frequency300Hz
69
70Fuel Pump Relay control outputRelay OFFDCBattery Voltage12.8V
Relay ONMax. 1.0V40mV
71ETC Motor [+] control outputIdlePulseHI: Battery Voltage13.4V
LO: Max. 1.0V0V
72ETC Motor [-] control outputIdlePulseHI: Battery Voltage13.3V
LO: Max. 1.0V0V
73
74Sensor groundIdleDCMax. 50 mV7mV
75Immobilizer communication lineDuring communicatingPulseHI: Min. 8.5V11.8V
LO: Max. 3.5V1.0V
76
77CAN [High]RecessivePulse2.0 ~ 3.0V2.58V
Dominant2.75~4.5V3.54V
78CAN [Low]RecessivePulse2.0 ~ 3.0V2.64V
Dominant0.5~2.25V1.52V
79
80Throttle Position Sensor (TPS) 1 signal inputC.TAnalog0.3 ~ 0.9 V0.65V
W.O.T1.5 ~ 3.0 V1.63V
81
82Accelerator Position Sensor (APS) 1 signal inputC.TAnalogMax. 1.0V0.8V
W.O.TMin. 4.0V4.0V
83Sensor groundIdleDCMax. 50 mV12mV
84Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2] signal inputIdleDCRich: 0.6 ~ 1.0V74 mV
Lean: Max. 0.4V70mV
85Sensor groundIdleDCMax. 50 mV10 mV
86
87
88Cooling Fan Relay [High] control outputRelay OFFDCBattery Voltage
Relay ONMax. 1.0V
89
90
91Canister Close Valve (CCV) control outputActive InactivePulseHigh: Battery Voltage13.0V
Low: Max. 1.0V20mV
V peak: Max. 70V57.7V
92Malfunction Indicator Lamp (MIL) control outputLamp OFFDCBattery Voltage13.8V
Lamp ONMax. 1.0V54mV
93Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1] Heater control outputEngine RunPulseHI: Battery Voltage14.4V
LO: Max. 1.0V0.36V
Frequency10.0Hz
Duty(+)58.30%
94Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2] Heater control outputEngine RunPulseHI: Battery Voltage14.0V
LO: Max. 1.0V0.31V
Frequency7.68Hz
Duty(+)53.9%

CONNECTOR [CHG-K] INFORMATION

Pin No.DescriptionConditionTypeLevelTest Result
1Ignition Coil (Cylinder #1) control output (Without immobilizer)IdlePulse1st Voltage: 300~400V416V
ON Voltage: Max. 2.0V1.4V
Ignition Coil (Cylinder #4) control output (With immobilizer)Frequency5.2Hz
Dwell Time16.8mV
2ShieldIdleDCMax. 50mV16.8mV
3
4
5
6
7
8
9
10
11
12
13Electrical load [Wiper] signal input
14
15
16Ignition Coil (Cylinder #3) control output (Without immobilizer)IdlePulse1st Voltage: 300~400V416V
ON Voltage: Max. 2.0V1.3V
Frequency5.2Hz
Ignition Coil (Cylinder #2) control output (With immobilizer)Dwell Time2.73ms
17
18
19
20
21
22
23
24
25
26
27
28
29Brake Switch 1 signal inputBrake ONDCBattery Voltage
Brake OFFMax. 0.5 V
30
31Ignition Coil (Cylinder #4) control output (Without immobilizer)IdlePulse1st Voltage: 300~400V408V
Ignition Coil (Cylinder #1) control output (With immobilizer)ON Voltage: Max. 2.0V1.6V
Frequency5.2Hz
Dwell Time2.74ms
32
33
34
35
36
37
38
39
40
41
42
43
44Brake Switch 2 signal inputPushDCMax. 0.5V
NormalBattery Voltage
45
46Ignition Coil (Cylinder #2) control output (Without immobilizer)IdlePulse1st Voltage: 300~400V410V
ON Voltage: Max. 2.0V1.5V
Frequency5.2Hz
Ignition Coil (Cylinder #3) control output (With immobilizer)Dwell Time2.78ms
47
48
49
50
51
52
53
54
55H-CAN [High]
56H-CAN [Low]
57
58
59
60

CONNECTOR [CHG-A] INFORMATION

Scheme 409

Scheme 409: Circuit Diagram

Scheme 410

Scheme 410

Scheme 411

Scheme 411

Scheme 412

Scheme 412

[Throttle Position Sensor (TPS)]

Throttle Angle(°)Output Voltage(V)
TPS1TPS2
00.05.0
100.484.52
200.954.05
301.433.57
401.903.10
502.382.62
602.862.14
703.331.67
803.811.19
904.290.71
1004.760.24
1055.00
C.T (6 ~ 15°)0.29 ~ 0.714.29 ~ 4.71
W.O.T (93 ~ 102°)4.43 ~ 4.860.14 ~ 0.57

Scheme 413

Scheme 413
ItemSensor Resistance(kohms)
TPS10.875 ~ 1.625 [20°C(68°F)]
TPS20.875 ~ 1.625 [20°C(68°F)]

[ETC Motor]

ItemSpecification
Coil Resistance (ohms)1.2 ~ 1.8 [20°C(68°F)]

Scheme 414

Scheme 414: Circuit Diagram

Throttle Position Sensor (TPS)

  1. Connect the GDS on the Data Link Connector (DLC).
  2. Start the engine and measure the output voltage of TPS 1 and 2 at C.T. and W.O.T. Throttle Angle Output Voltage (V) TPS 1 TPS 2 C.T 0.3 ~ 0.9 4.2 ~ 5.0 W.O.T 1.5 ~ 3.0 3.3 ~ 3.8
  3. Turn the ignition switch OFF and disconnect the scantool from the DLC.
  4. Disconnect the ETC module connector and measure the resistance between the ETC module terminals 1 and 2. Specification: Refer to " «SPECIFICATION»(ref-535731-S29168266712013031200000) "

ETC Motor

  1. Turn the ignition switch OFF.
  2. Disconnect the ETC module connector.
  3. Measure resistance between the ETC module terminals 3 and 6.
  4. Check that the resistance is within the specification. Specification: Refer to " «SPECIFICATION»(ref-535731-S29168266712013031200000) "

Scheme 415

Scheme 415: Removal
  1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
  2. Remove the resonator and the air intake hose (Refer to "Intake And Exhaust System" in EM group).
  3. Disconnect the ETC module connector (A).
  4. Disconnect the coolant hoses (B).
  5. Remove the installation bolts (C), and then remove the ETC module from the engine.

HO2S [Bank 1/Sensor 1] (Linear type)

ItemSpecification
Heater Resistance (ohms)2.5 ~ 4.0 [20°C(68°F)]

HO2S [Bank 1/Sensor 2] (Binary type)

A/F Ratio (lambda)Output Voltage(V)
RICHApprox. 0.92
LEANApprox. 0.04
ItemSpecification
Heater Resistance (ohms)3.3 ~ 4.1ohms[21°C(69.8°F)]

Scheme 416

Scheme 416: Circuit Diagram