Engine Control System/Fuel System
Engine Control Module (ECM) Circuit Diagrams
In this manual: Engine Control System/Fuel System
~6min read
ECM Terminal and Input/Output Signal
ECM Terminal Function
Connector [C500-A]| Pin No. | Description | Connected To |
| 1 | Injector (Cylinder No. 3) [High] Control Output | Injector (Cylinder #3) |
| 2 | Injector (Cylinder No. 4) [High] Control Output | Injector (Cylinder No. 4) |
| 3 | Injector (Cylinder No. 2) [Low] Control Output | Injector (Cylinder #2) |
| 4 | Electronic Wastegate Actuator (EWGA) DC Motor Power (+) | Electric Wastegate Actuator (EWGA) |
| 5 | Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1] Heater Control Output | Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1] |
| 6 | - | ? |
| 7 | - | |
| 8 | - | ? |
| 9 | Sensor Ground | Electric Wastegate Actuator (EWGA) |
| 10 | - | ? |
| 11 | - | ? |
| 12 | - | |
| 13 | - | ? |
| 14 | Cooling Fan Relay [High] Control Output | Cooling Fan Relay [High] |
| 15 | CVVT Oil Control Valve (OCV) Control Output [Bank 1/Exhaust] | CVVT Oil Control Valve (OCV) [Bank 1/Exhaust] |
| 16 | Injector (Cylinder No. 2) [High] Control Output | Injector (Cylinder #2) |
| 17 | Injector (Cylinder No. 1) [High] Control Output | Injector (Cylinder No. 1) |
| 18 | Injector (Cylinder No. 3) [Low] Control Output | Injector (Cylinder #3) |
| 19 | Electronic Wastegate Actuator (EWGA) DC Motor Power (-) | Electric Wastegate Actuator (EWGA) |
| 20 | Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2] Heater Control Output | Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2] |
| 21 | - | ? |
| 22 | - | ? |
| 23 | Engine Coolant Temperature Sensor (ECTS) Signal Input | Engine Coolant Temperature Sensor (ECTS)? |
| 24 | Sensor Ground | Engine Coolant Temperature Sensor (ECTS) |
| 25 | - | ? |
| 26 | Fuel Tank Pressure Sensor (FTPS) Signal Input | Fuel Tank Pressure Sensor (FTPS) |
| 27 | Fuel Pump Relay Control Output (Non-Smart Key) | Fuel Pump Relay |
| Canister Close Valve (CCV) Control Output (Smart Key Type) | Canister Close Valve (CCV) | |
| 28 | - | ? |
| 29 | - | |
| 30 | - | ? |
| 31 | Ignition Coil Control Output (Cylinder #3) | Ignition Coil (Cylinder No. 3) |
| 32 | Ignition Coil Control Output (Cylinder No. 1) | Ignition Coil (Cylinder No. 1) |
| 33 | Injector (Cylinder No. 1) [Low] Control Output | Injector (Cylinder No. 1) |
| 34 | Fuel Pressure Control Valve (FPCV) [High] Control Output | Fuel Pressure Control Valve (FPCV) |
| 35 | ETC Motor [-] Control Output | ETC motor |
| 36 | - | ? |
| 37 | Knock Sensor (KS) Signal Input | Knock Sensor (KS) |
| 38 | Sensor Ground | Knock Sensor (KS) |
| 39 | - | |
| 40 | Stop Lamp Switch Input Signal | Brake Switch |
| 41 | - | |
| 42 | - | |
| 43 | - | ? |
| 44 | - | ? |
| 45 | CVVT Oil Control Valve (OCV) [Bank 1/Intake] Control Output | CVVT Oil Control Valve (OCV) [Bank 1/Intake] |
| 46 | Ignition Coil Control Output (Cylinder No. 4) | Ignition Coil (Cylinder No. 4) |
| 47 | Ignition Coil Control Output (Cylinder #2) | Ignition Coil (Cylinder No. 2) |
| 48 | Injector (Cylinder No. 4) [Low] Control Output | Injector (Cylinder No. 4) |
| 49 | Fuel Pressure Control Valve (FPCV) [Low] Control Output | Fuel Pressure Control Valve (FPCV) |
| 50 | ETC Motor [+] Control Output | ETC motor |
| 51 | - | ? |
| 52 | Electric Waste Gate Actuator (EWGA) Feedback Signal | Electric Wastegate Actuator (EWGA) |
| 53 | Brake Check Switch Input Signal | Brake Switch |
| 54 | - | ? |
| 55 | - | |
| 56 | Electrical Load Input Signal [Defrost] | Generator |
| 57 | Generator COM Signal Output | Generator |
| 58 | Engine Speed Output Signal | Cluster |
| 59 | Cooling Fan Relay [Low] Control Output | Cooling Fan Relay [Low] |
| 60 | - |
Connector [C500-K]
| Pin No. | Description | Connected To |
| 1 | ECM Ground | Ground |
| 2 | ECM Ground | Ground |
| 3 | ECM Ground | Ground |
| 4 | Battery Power (B+) | Main Relay |
| 5 | Battery Power (B+) | Battery |
| 6 | Battery Power (B+) | Battery |
| 7 | Battery Power (B+) | Main Relay |
| 8 | Sensor Ground | Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2] |
| 9 | Accelerator Pedal Position Sensor (APS) 1 Signal Input | Accelerator Pedal Position Sensor (APS) 1 |
| 10 | Sensor Ground | Accelerator Pedal Position Sensor (APS) 2 |
| 11 | - | ? |
| 12 | Sensor Ground | Fuel Tank Pressure Sensor (FTPS) |
| 13 | - | ? |
| 14 | Throttle Position Sensor (TPS) 1 Signal Input | Throttle Position Sensor (TPS) 1 |
| 15 | - | ? |
| 16 | - | ? |
| 17 | Fuel Level Input Signal | Fuel Level Sensor (FLS) |
| 18 | Sensor Power Supply (+5V) | Accelerator Pedal Position Sensor (APS) 2 |
| 19 | Sensor Power Supply (+5V) | Electric Wastegate Actuator (EWGA) |
| 20 | Sensor Power Supply (+5V) | Rail Pressure Sensor (RPS) |
| Boost Pressure Sensor (BPS) | ||
| Air Conditioning Pressure Sensor (APT) | ||
| 21 | - | ? |
| 22 | Wiper Switch Signal Input | Wiper Switch |
| 23 | - | |
| 24 | Generator PWM Signal Output [FR] | Generator |
| 25 | - | ? |
| 26 | - | ? |
| 27 | - | ? |
| 28 | - | ? |
| 29 | Ignition Switch Input Signal | Ignition Lock |
| 30 | Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2] Signal Input | Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2] |
| 31 | Accelerator Pedal Position Sensor (APS) 2 Signal Input | Accelerator Pedal Position Sensor (APS) 2 |
| 32 | Sensor Ground | Accelerator Pedal Position Sensor (APS) 1 |
| 33 | - | |
| 34 | - | ? |
| 35 | Sensor Ground | Throttle Position Sensor (TPS) 1,2 |
| 36 | Throttle Position Sensor (TPS) 2 Signal Input | Throttle Position Sensor (TPS) 2 |
| 37 | - | |
| 38 | - | ? |
| 39 | Sensor Power Supply (+5V) | Throttle Position Sensor (TPS) 1,2 |
| 40 | Sensor Power Supply (+5V) | Accelerator Pedal Position Sensor (APS) 1 |
| 41 | Sensor Power Supply (+5V) | Manifold Absolute Pressure Sensor (MAPS) |
| Fuel Tank Pressure Sensor (FTPS) | ||
| 42 | Sensor Power Supply (+5V) | Camshaft Position Sensor (CMPS) [Bank 1 / Intake] |
| Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust] | ||
| 43 | - | |
| 44 | - | |
| 45 | Air Conditioning Pressure Sensor (APT) Signal Input | Air Conditioning Pressure Sensor (APT) |
| 46 | Vehicle Speed Signal Input | Vehicle speed sensor |
| 47 | - | |
| 48 | - | ? |
| 49 | - | ? |
| 50 | - | |
| 51 | - | ? |
| 52 | VS-/IP- (Common Ground for VS, IP) | Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1] |
| 53 | Rc/Rp (Pump Cell Voltage) | Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1] |
| 54 | - | ? |
| 55 | Sensor Ground | Boost Pressure Sensor (BPS) |
| 56 | - | - |
| 57 | Boost Pressure Sensor (BPS) Input Signal | Boost Pressure Sensor (BPS) |
| 58 | Rail Pressure Sensor (RPS) Signal Input | Rail Pressure Sensor (RPS) |
| 59 | - | |
| 60 | Start Signal Input | PDM Module |
| 61 | LIN Communication Input Signal | |
| 62 | - | ? |
| 63 | CAN [Low] | Other Control Module, Data Link Connector (DLC), Multi-Purpose Check Connector |
| 64 | Sensor Ground | Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust] |
| 65 | Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust] Input Signal | Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust] |
| 66 | - | ? |
| 67 | Crankshaft Position Sensor (CKPS) [B] Signal Input | Crankshaft Position Sensor (CKPS) |
| 68 | - | ? |
| 69 | - | ? |
| 70 | RCV Control Solenoid Valve Control Output | RCV Control Solenoid |
| 71 | - | ? |
| 72 | Purge Control Solenoid Valve (PCSV) Control Output | Purge Control Solenoid Valve (PCSV) |
| 73 | - | ? |
| 74 | VS+ (Nernst Cell Voltage) | Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1] |
| 75 | Rc (Compensation Resistance) | Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1] |
| 76 | Sensor Ground | Rail Pressure Sensor (RPS) |
| 77 | Sensor Ground | Air Conditioning Pressure Sensor (APT) |
| 78 | Sensor Ground | Manifold Absolute Pressure Sensor (MAPS) |
| 79 | Intake Air Temperature Sensor (IATS) Input Signal | Intake Air Temperature Sensor (IATS) |
| 80 | Manifold Absolute Pressure Sensor (MAPS) Signal Input | Manifold Absolute Pressure Sensor (MAPS) |
| 81 | - | ? |
| 82 | - | ? |
| 83 | Immobilizer Communication Line | Smart Key Control Module [with Engine Start Button] |
| Immobilizer Control Module [without Engine Start Button] | ||
| 84 | - | ? |
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