Engine Control System - 2.0L: Other Kia Optima III

ECM Terminal Function

Connector (CHTG-AG)

PIN DESCRIPTION CHART

Connector (CHTG-BG)

PIN DESCRIPTION CHART

ECM Terminal Input/Output signal

Connector (CHTG-AG)

PIN DESCRIPTION CHART

Connector (CHTG-BG)

PIN DESCRIPTION CHART 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 4 ECM ground Idle DC -0.3 ~ 0.5V 5 Battery power (B+) IG OFF DC Max. 1.0V IG ON Battery Voltage 6 Battery power (B+) IG OFF DC Max. 1.0V IG ON Battery Voltage 7 - 8 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) 9 - 10 Brake Switch 2 signal input Brake OFF DC Battery Voltage Brake ON Max. 0.5V 11 - 12 - 13 - 14 Electrical load (wiper) signal input 15 Electrical load signal input (FR) Lamp OFF DC Battery Voltage Lamp ON -0.3 ~ 0.5V 16 Alternator PWM signal output (COM) Idle Pulse High: Battery Voltage Low: Max. 1.5V Frequency: 125Hz 17 - 18 Cooling Fan Relay (High) control output Relay OFF DC Battery Voltage Relay ON Max. 1.0V 19 Immobilizer Lamp control output Lamp OFF DC Battery Voltage Lamp ON -0.3 ~ 1.2V 20 - 21 - 22 Injector (Cylinder #2) (High) control output Engine Running PWM 23 Injector (Cylinder #2) (Low) control output Engine Running Pulse 24 - 25 Sensor ground Idle DC -0.3 ~ 0.5V 26 - 27 Brake Switch 1 signal input Brake OFF DC Max. 0.5V Brake ON Battery Voltage 28 - 29 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) 30 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) 31 - 32 LIN communication signal input 33 Cooling Fan Relay (Low) control output Relay OFF DC Battery Voltage Relay ON -0.3 ~ 1.2V 34 - 35 - 36 - 37 - 38 - 39 Injector (Cylinder #3) (High) control output Engine Running PWM 40 Injector (Cylinder #3) (Low) control output Engine Running Pulse 41 Battery power (B+) IG OFF DC Max. 1.0V IG ON Battery Voltage 42 - 43 - 44 Sensor shield Idle DC -0.3 ~ 0.5V 45 Sensor ground Idle DC -0.3 ~ 0.5V 46 Sensor ground Idle DC -0.3 ~ 0.5V 47 Sensor ground Idle DC -0.3 ~ 0.5V 48 - 49 - 50 - 51 - 52 - 53 Main Relay control output Relay OFF DC Battery Voltage Relay ON -0.3 ~ 1.2V 54 - 55 - 56 Injector (Cylinder #4) (High) control output Engine Running PWM 57 Injector (Cylinder #4) (Low) control output Engine Running Pulse 58 Battery power (B+) IG OFF DC Max. 1.0V IG ON Battery Voltage 59 - 60 CAN (Low) Recessive Pulse 2.0 ~ 3.0V Dominant 2.75 ~ 4.5V 61 - 62 Knock Sensor (KS) signal input Knocking Variable Frequency -0.3 ~ 0.3V Normal 0V 63 Clutch Switch signal input S/W OFF DC Battery Voltage S/W ON -0.3 ~ 0.5V 64 - 65 - 66 - 67 - 68 - 69 Starter Relay control output Relay OFF DC Battery Voltage Relay ON -0.3 ~ 1.2V 70 Fuel Pump Relay control output Relay OFF DC Battery Voltage Relay ON -0.3 ~ 1.2V 71 Engine speed signal output Engine Running Frequency High: Battery Voltage Low: -0.3 ~ 1.0V Frequency: 26Hz (Idle), 106Hz (3, 000 RPM) 72 RCV Control Solenoid Valve control output 73 Injector (Cylinder #1) (High) control output Engine Running PWM 74 Injector (Cylinder #1) (Low) control output Engine Running Pulse 75 Battery power (B+) IG OFF DC Max. 1.0V IG ON Battery Voltage 76 - 77 CAN (High) Recessive Pulse 2.0 ~ 3.0V Dominant 2.75 ~ 4.5V 78 Vehicle speed signal input 79 - 80 - 81 - 82 Starter Control Switch signal input S/W OFF DC -0.3 ~ 0.5V S/W ON Battery Voltage 83 Fuel Level Sender (FLS) signal input 84 CVVT Oil Control Valve (OCV) (Bank 1/Exhaust) control output Idle Pulse High: Battery Voltage Low: -0.3 ~ 1.0V Frequency: 300Hz 85 CVVT Oil Control Valve (OCV) (Bank 1/Intake) control output Idle Pulse High: Battery Voltage Low: -0.3 ~ 1.0V Frequency: 300Hz 86 Purge Control Solenoid Valve (PCSV) control output Inactive Active Pulse High: Battery Voltage Low: Max. 1.0V Vpeak: 42.0 ~ 60.0V Frequency: 20Hz 87 Canister Close Valve (CCV) control output Active Inactive Pulse High: Battery Voltage Low: Max. 1.0V Vpeak: 42.0 ~ 60.0V 88 Heated Oxygen Sensor (HO2S) (Bank 1/Sensor 1) Heater control output Engine Running Pulse High: Battery Voltage 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 Low: -0.3 ~ 1.0V Frequency: 8 ~ 10Hz Duty: 0 ~ 100% 90 Fuel Pressure Regulator Valve (High) control output Engine Running PWM 91 Fuel Pressure Regulator Valve (Low) control output Engine Running Pulse

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VIN Programming Procedure

VIN (Vehicle Identification Number) is a number that has the vehicle's information (Maker, Vehicle Type, Vehicle Line/Series, Body Type, Engine Type, Transmission Type, Model Year, Plant Location and so forth. For more information, please refer to GENERAL INFORMATION ). When replacing an ECM, the VIN must be programmed in the ECM. If there is no VIN in ECM memory, the fault code (DTC P0630) is set.

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1. Select "VIN Writing" function in "Vehicle S/W Management".
2. Select "Write VIN" in "ID Register".
3. Input the VIN. WARNING: Before inputting the VIN, confirm the VIN again because the programmed VIN cannot be changed.
4. Turn the ignition switch OFF, then back ON.

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. Specification: Refer to «SPECIFICATION»(ref-429552-S26321805982011101500000) .
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 .

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 .

Motor

1. Turn ignition switch OFF.
2. Disconnect the EWGA connector.
3. Check that the EWGA is stuck by foreign material.
4. Measure resistance between motor (+) and (-) control terminals of the motor.
5. Check that the resistance is within the specification.

Specification: Refer to SPECIFICATION .

Position Sensor

1. Turn ignition switch ON.
2. Connect the GDS to the data link connector (DLC).
3. Check the output voltage at each position of the EWGA position sensor on current data item within the specification.

Specification: Refer to SPECIFICATION .

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1. Turn the ignition switch OFF and disconnect the battery negative (-) cable.
2. Disconnect the EWGA connector (A).
3. Remove the shaft link assembly (B) after removing the C-ring (A).
4. Remove the EWGA after removing the bolts (A). CAUTION: When carrying the turbo charger, do not hold the rod of the turbo charge to prevent bending the rod.