Engine Control System/Fuel System
Engine Control Module (ECM) Circuit Diagrams
In this manual: Engine Control System/Fuel System
~5min read
ECM Terminal and Input/Output Signal
Harness Connector
ECM Terminal Function
Connector [C300-A]| Pin No. | Description | Connected To |
| 1 | - | |
| 2 | ETC Motor [+] Control Output | ETC Motor |
| 3 | - | |
| 4 | Engine Control Output [-] | Variable Charge Motor Actuator (VCMA) |
| 5 | - | |
| 6 | - | |
| 7 | - | |
| 8 | - | |
| 9 | - | |
| 10 | Clutch Switch Signal Input [M/T] | Clutch Switch |
| 11 | - | |
| 12 | - | |
| 13 | - | |
| 14 | - | |
| 15 | Sensor Ground | Engine Coolant Temperature Sensor (ECTS) |
| 16 | Engine Coolant Temperature Sensor (ECTS) Signal Input | Engine Coolant Temperature Sensor (ECTS) |
| 17 | Throttle Position Sensor (TPS) 2 Signal Input | Throttle Position Sensor (TPS) 2 |
| 18 | - | |
| 19 | - | |
| 20 | - | |
| 21 | Sensor Power Supply (+5V) | Manifold Absolute Pressure Sensor (MAPS) |
| Camshaft Position Sensor (CMPS) [Bank 1/Intake] | ||
| 22 | - | |
| 23 | ETC Motor [-] Control Output | ETC Motor |
| 24 | - | |
| 25 | Engine Control Output [+] | Variable Charge Motor Actuator (VCMA) |
| 26 | - | |
| 27 | - | |
| 28 | - | |
| 29 | - | |
| 30 | - | |
| 31 | Electrical Load Signal Input | Generator |
| 32 | - | |
| 33 | - | |
| 34 | - | |
| 35 | - | |
| 36 | - | |
| 37 | Sensor Ground | Throttle Position Sensor (TPS) 1,2 |
| 38 | Throttle Position Sensor (TPS) 1 Signal Input | Throttle Position Sensor (TPS) 1 |
| 39 | - | |
| 40 | Generator PWM Control Output | Generator |
| 41 | - | |
| 42 | Sensor Power Supply (+5V) | Throttle Position Sensor (TPS) 1,2 |
| 43 | - | |
| 44 | - | |
| 45 | - | |
| 46 | - | |
| 47 | - | |
| 48 | - | |
| 49 | - | |
| 50 | - | |
| 51 | - | |
| 52 | - | |
| 53 | - | |
| 54 | VCMA Feedback Ground | Variable Charge Motor Actuator (VCMA) |
| 55 | - | |
| 56 | Sensor Ground | Camshaft Position Sensor (CMPS) [Bank 1/Exhaust] |
| 57 | - | |
| 58 | - | |
| 59 | - | |
| 60 | - | |
| 61 | Sensor Ground | Manifold Absolute Pressure Sensor (MAPS) |
| 62 | Manifold Absolute Pressure Sensor (MAPS) Signal Input | Manifold Absolute Pressure Sensor (MAPS) |
| 63 | Sensor Power Supply (+5V) | Camshaft Position Sensor (CMPS) [Bank 1/Exhaust] |
| Variable Charge Motor Actuator (VCMA) | ||
| 65 | - | |
| 66 | - | |
| 67 | - | |
| 68 | - | |
| 69 | - | |
| 70 | - | |
| 71 | - | |
| 72 | - | |
| 73 | - | |
| 74 | Sensor Ground | Crankshaft Position Sensor (CKPS) |
| 75 | - | |
| 76 | VCMA Feedback Signal Input | Variable Charge Motor Actuator (VCMA) |
| 77 | Camshaft Position Sensor (CMPS) [Bank 1/Exhaust] Signal Input | Camshaft Position Sensor (CMPS) [Bank 1/Exhaust] |
| 78 | Sensor Ground | Camshaft Position Sensor (CMPS) [Bank 1/Intake] |
| 79 | - | |
| 80 | - | |
| 81 | - | |
| 82 | - | |
| 83 | VG (Virtual Ground) | Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1] |
| 84 | VRC (Virtual Reference Control) | Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1] |
| 85 | - | |
| 86 | - | |
| 87 | - | |
| 88 | - | |
| 89 | - | |
| 90 | - | |
| 91 | - | |
| 92 | - | |
| 93 | - | |
| 94 | - | |
| 95 | Crankshaft Position Sensor (CKPS) Signal Input | Crankshaft Position Sensor (CKPS) |
| 96 | - | |
| 97 | - | |
| 98 | Camshaft Position Sensor (CMPS) [Bank 1/Intake] Signal Input | Camshaft Position Sensor (CMPS) [Bank 1/Intake] |
| 99 | Sensor Ground | Knock Sensor (KS) |
| 100 | Knock Sensor (KS) Signal Input | Knock Sensor (KS) |
| 101 | Intake Air Temperature Sensor (IATS) Signal Input | Intake Air Temperature Sensor (IATS) |
| 102 | - | |
| 103 | - | |
| 104 | VN (Nernst Cell Voltage) | Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1] |
| 105 | VIP (Pump Current) | Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 1] |
Connector [C300-B]
| Pin No. | Description | Connected To |
| 1 | Power Ground | Ground |
| 2 | Power Ground | Ground |
| 3 | Battery Power (B+) | Main Relay |
| 4 | Power Ground | Ground |
| 5 | Battery Power (B+) | Main Relay |
| 6 | Battery Power (B+) | Main Relay |
| 7 | - | |
| 8 | FLEX-RAY (High) | Other Control Module, Data Link Connector (DLC) |
| 9 | - | |
| 10 | Accelerator Pedal Position Sensor (APS) 2 Signal Input | Accelerator Pedal Position Sensor (APS) 2 |
| 11 | Air Conditioning Pressure Sensor (APT) Signal Input | Air Conditioning Pressure Sensor (APT) |
| 12 | - | |
| 13 | - | |
| 14 | Sensor Power Supply (+5V) | Air Conditioning Pressure Sensor (APT) |
| Fuel Tank Pressure Sensor (FTPS) | ||
| 15 | - | |
| 16 | Sensor Power Supply (+5V) | Accelerator Pedal Position Sensor (APS) 2 |
| 17 | Sensor Power Supply (+5V) | Accelerator Pedal Position Sensor (APS) 1 |
| 18 | Main Relay Control Output | Main Relay |
| 19 | Fuel Pump Relay Control Output | Fuel Pump Relay |
| 20 | - | |
| 21 | - | |
| 22 | Injector Control Output (Cylinder #2) | Injector (Cylinder #2) |
| 23 | Injector Control Output (Cylinder #3) | Injector (Cylinder #3) |
| 24 | - | |
| 25 | FLEX-RAY (Low) | Other Control Module, Data Link Connector (DLC) |
| 26 | Electrical Signal Input [Fan Max. Switch] | Heater & A/C Control Module |
| 27 | Accelerator Pedal Position Sensor (APS) 1 Signal Input | Accelerator Pedal Position Sensor (APS) 1 |
| 28 | Sensor Ground | Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2] |
| 29 | Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2] Input Signal | Heated Oxygen Sensor (HO2S) [Bank 1/Sensor 2] |
| 30 | Fuel Tank Pressure Sensor Signal Input | Fuel Tank Pressure Sensor (FTPS) |
| 31 | - | |
| 32 | - | |
| 33 | - | |
| 34 | Engine Start Relay Control Output | Engine Start Relay |
| 35 | CVVT Oil Control Valve (OCV) [Bank 1/Exhaust] Control Output | CVVT Oil Control Valve (OCV) [Bank 1/Exhaust] |
| 36 | CVVT Oil Control Valve (OCV) [Bank 1/Intake] No.1 Control Output | CVVT Oil Control Valve (OCV) [Bank 1/Intake] No.1 |
| 37 | - | |
| 38 | A/C Relay Control Output | A/C Relay |
| 39 | Injector Control Output (Cylinder #4) | Injector (Cylinder #3) |
| 40 | Ignition Coil Control Output (Cylinder #2) | Ignition Coil (Cylinder #2) [Without Immobilizer] |
| Ignition Coil Control Output (Cylinder #3) | Ignition Coil (Cylinder #3) [Immobilizer Type] | |
| 41 | Battery Power (B+) | Ignition Switch |
| 42 | - | |
| 43 | - | |
| 44 | - | |
| 45 | Sensor Ground | Accelerator Pedal Position Sensor (APS) 1 |
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