Engine/Fuel Control System
Engine Control Module (ECM) Circuit Diagrams
In this manual: Engine/Fuel Control System
~7min read
ECM Terminal and Input/Output Signal
ECM TERMINAL FUNCTION
Connector [E500-A]| Pin No. | Description | Connected To |
| 1 | Ignition Coil Control Output (Cylinder #3) | IGNITION COIL (Cylinder No. 3) |
| 2 | Ignition Coil Control Output (Cylinder #2) | Ignition Coil (Cylinder No. 2) |
| 3 | - | |
| 4 | EWGA control (-) engine | Electric Wastegate Actuator (EWGA) |
| 5 | Injector control output (Cylinder No. 3) [LOW] | Injector (Cylinder #3) |
| 6 | Power steering switch electrical load signal input | POWER STEERING SWITCH |
| 7 | ECTS signal input | ENGINE COOLANT TEMPERATURE SENSOR (ECTS) |
| 8 | - | |
| 9 | BPS signal input | BOOST PRESSURE SENSOR (BPS) |
| 10 | - | |
| 11 | - | |
| 12 | EWGA sensor feedback signal input | Electric Wastegate Actuator (EWGA) |
| 13 | TPS 1 signal input | Electronic Throttle Control (ETC) module |
| 14 | APS 1 signal input | ACCELERATOR PEDAL POSITION SENSOR (APS) |
| 15 | BBVPS signal input | Brake booster vacuum pressure sensor (BBVPS) |
| 16 | - | |
| 17 | Ignition Coil Control Output (Cylinder No. 1) | IGNITION COIL (Cylinder No. 1) |
| 18 | ETC motor control output [+] | Electronic Throttle Control (ETC) module |
| 19 | EWGA control (-) engine | Electric Wastegate Actuator (EWGA) |
| 20 | Injector Control Output (Cylinder No. 2) [LOW] | Injector (Cylinder #2) |
| 21 | Wiper Switch Signal Input | Wiper Arm |
| 22 | Neutral Position Switch Signal Input (Ground) | Neutral Switch |
| 23 | Headlight Electrical Charge Signal Input | Headlight Switch |
| 24 | CMPS Input Signal [Bank 1/Exhaust] | CAMSHAFT POSITION SENSOR (CMPS) |
| 25 | - | |
| 26 | - | |
| 27 | Ignition Switch (or Push-Button Switch) Signal Input | IGNITION SWITCH |
| 28 | Brake Switch Signal Input | With Brake Switch |
| 29 | Stop Lamp Brake Switch Signal Input | With Brake Switch |
| 30 | Clutch Switch Signal Input | Clutch Switch |
| 31 | Injector Control Output (Cylinder No. 2) [HIGH] | Injector (Cylinder #2) |
| 32 | Injector Control Output (Cylinder No. 3) [HIGH] | Injector (Cylinder #3) |
| 33 | - | |
| 34 | Injector Control Output (Cylinder No. 1) [LOW] | Injector (Cylinder No. 1) |
| 35 | FPCV Command Output [High] | Fuel Pressure Control Valve (FPCV) |
| 36 | CMPS [Bank 1/Intake] Ground | CAMSHAFT POSITION SENSOR (CMPS) |
| 37 | CMPS [Bank 1/Exhaust] Ground | CAMSHAFT POSITION SENSOR (CMPS) |
| 38 | - | |
| 39 | - | |
| 40 | - | |
| 41 | Heated Oxygen Sensor Input Signal [Bank 1/Sensor 2] | Heated Oxygen Sensor (Bank 1, Sensor 2) |
| 42 | - | |
| 43 | - | |
| 44 | ISG OFF Switch Ground | ISG OFF Switch |
| 45 | Rear Defroster Electrical Load Signal Input | Defroster |
| 46 | - | |
| 47 | Injector Control Output (Cylinder No. 1) [HIGH] | Injector (Cylinder No. 1) |
| 48 | ETC motor control output [+] | Electronic Throttle Control (ETC) module |
| 49 | - | |
| 50 | FPCV Command Output [Low] | Fuel Pressure Control Valve (FPCV) |
| 51 | Vehicle Speed Sensor Signal Input | Vehicle Speed Sensor (VSS) |
| 52 | Vehicle Speed Sensor Ground | Vehicle Speed Sensor (VSS) |
| 53 | CKPS Ground | WITH CRANKSHAFT POSITION SENSOR (CKPS) |
| 54 | CKPS Signal Input | WITH CRANKSHAFT POSITION SENSOR (CKPS) |
| 55 | - | |
| 56 | CMPS Input Signal [Bank 1/Intake] | CAMSHAFT POSITION SENSOR (CMPS) |
| 57 | HO2S [Bank 1 / Sensor 2] Ground | Heated Oxygen Sensor (Bank 1, Sensor 2) |
| 58 | - | |
| 59 | - | |
| 60 | Ignition Lock Switch Signal Input (Ground) | Ignition Switch |
Connector [E500-K]
| Pin No. | Description | Connected To |
| 1 | ECM Ground | CHASSIS GROUND |
| 2 | ECM Ground | CHASSIS GROUND |
| 3 | ECM Ground | CHASSIS GROUND |
| 4 | Battery Power (B+) | MAIN RELAY |
| 5 | Battery Power (B+) | MAIN RELAY |
| 6 | Main Relay Control Output | MAIN RELAY |
| 7 | Battery Power (B+) | MAIN RELAY |
| 8 | APS 1 Ground | ACCELERATOR PEDAL POSITION SENSOR (APS) |
| 9 | MAPS and IATS Ground | MANIFOLD ABSOLUTE PRESSURE SENSOR (MAP) |
| 10 | BPS Ground | BOOST PRESSURE SENSOR (BPS) |
| 11 | Ignition Coil Feedback Signal (Cylinder No. 1, No. 2, No. 3) | IGNITION COIL |
| 12 | EWGA Sensor Ground | Electric Wastegate Actuator (EWGA) |
| 13 | - | |
| 14 | - | |
| 15 | - | |
| 16 | ECTS Ground Circuit | ENGINE COOLANT TEMPERATURE SENSOR (ECTS) |
| 17 | Fuel Filler Door Opener LED Lamp Control Output | Instrument Cluster |
| 18 | - | |
| 19 | - | |
| 20 | A/C Compressor Relay Control Output | A/C Compressor Relay |
| 21 | - | |
| 22 | OCV Command Output [Bank 1 / Intake] | CVVT Oil Control Valve (OCV) [Bank 1 / Intake] |
| 23 | - | |
| 24 | Cooling Fan Relay Control Output [PWM] | COOLING FAN RELAY |
| 25 | - | |
| 26 | - | |
| 27 | Fuel Pump Relay Control Output (With Immobilizer) | FUEL PUMP RELAY |
| 28 | - | |
| 29 | - | |
| 30 | APS 2 Sensor Ground | ACCELERATOR PEDAL POSITION SENSOR (APS) |
| 31 | - | |
| 32 | - | |
| 33 | - | |
| 34 | - | |
| 35 | Ground of Brake Booster Pressure Sensor | Brake booster vacuum pressure sensor (BBVPS) |
| 36 | RPS Ground | Rail Pressure Sensor (RPS) |
| 37 | ATP GROUND | Air Conditioning Pressure Sensor (APT) |
| 38 | - | |
| 39 | - | |
| 40 | - | |
| 41 | Starter Relay Control Output (Low) | Starter Relay |
| 42 | - | |
| 43 | APS 2 Power Supply (+5V) | ACCELERATOR PEDAL POSITION SENSOR (APS) |
| 44 | SMPS [Bank 1 / Intake and Exhaust] Power Supply (+5V) | CAMSHAFT POSITION SENSOR (CMPS) |
| 45 | - | |
| 46 | ISG OFF Switch Indicator Lamp Output Signal | ISG OFF Switch |
| 47 | - | |
| 48 | - | |
| 49 | - | |
| 50 | OCV Command Output [Bank 1/Exhaust] | CVVT Oil Control Valve (OCV) [Bank 1/Exhaust] |
| 51 | Battery Power (B+) | MAIN RELAY |
| 52 | TPS 1 and 2 Ground | Electronic Throttle Control (ETC) module |
| 53 | Maximum Fan Switch Input Signal | Fan Switch |
| 54 | ACT Signal Input | Air Conditioning Pressure Sensor (APT) |
| 55 | - | |
| 56 | IATS Signal Input | MANIFOLD ABSOLUTE PRESSURE SENSOR (MAP) |
| 57 | MAPS Signal Input | MANIFOLD ABSOLUTE PRESSURE SENSOR (MAP) |
| 58 | KS Ground | KNOCK SENSOR (KS) |
| 59 | HO2S [Bank 1 / Sensor 1] VS+ Signal (Nernst Cell Voltage) | Heated Oxygen Sensor (Bank 1, Sensor 1) |
| 60 | HO2S [Bank 1 / Sensor 1] Rc Signal (Compensation Resistor) | Heated Oxygen Sensor (Bank 1, Sensor 1) |
| 61 | LIN Communication Signal Input [with ISG/AMS] | Battery Sensor |
| LIN Communication Signal Input/Output (COM) | GENERATOR | |
| 62 | C-CAN 2 [Low] | Other Control Module, Data Link Connector (DLC), |
| 63 | C-CAN [Low] | Other Control Module, Data Link Connector (DLC), |
| 64 | - | |
| 65 | BPS Power Supply (+5V) | Brake booster vacuum pressure sensor (BBVPS) |
| CKPS Power Supply (+5V) [with ISG] | WITH CRANKSHAFT POSITION SENSOR (CKPS) | |
| 66 | APS 1 Power Supply (+5V) | ACCELERATOR PEDAL POSITION SENSOR (APS) |
| 67 | Starter Relay Control Output (High) | Starter Relay |
| 68 | RCV Solenoid Valve Control Output | RCV Solenoid Valve Control (RCV Valve) |
| 69 | - | |
| 70 | - | |
| 71 | Fuel Pump Relay Control Output (WITHOUT Immobilizer Type) | FUEL PUMP RELAY |
| 72 | - | |
| 73 | - | |
| 74 | TPS 2 Signal Input | Electronic Throttle Control (ETC) module |
| 75 | - | |
| 76 | - | |
| 77 | APS 2 Signal Input | ACCELERATOR PEDAL POSITION SENSOR (APS) |
| 78 | CMP Signal Input | Rail Pressure Sensor (RPS) |
| 79 | CKP Signal Input | KNOCK SENSOR (KS) |
| 80 | HO2S [Bank 1 / Sensor 1] VS-/IP- Signal (Common Ground for VS, IP) | Heated Oxygen Sensor (Bank 1, Sensor 1) |
| 81 | HO2S [Bank 1 / Sensor 1] Rc/Rp Signal (Pump Cell Current) | Heated Oxygen Sensor (Bank 1, Sensor 1) |
| 82 | Engine Speed Output Signal (rpm) | OTHER CONTROL MODULE |
| 83 | - | |
| 84 | C-CAN 2 [High] | Other Control Module, Data Link Connector (DLC), |
| 85 | C-CAN [High] | Other Control Module, Data Link Connector (DLC), |
| 86 | Sensor Power Supply (+5V) | MANIFOLD ABSOLUTE PRESSURE SENSOR (MAP) |
| EWGA Sensor Power Supply (+5V) | Electric Wastegate Actuator (EWGA) | |
| 87 | ACT Power Supply (+5V) | Air Conditioning Pressure Sensor (APT) |
| BPS Power Supply (+5V) | BOOST PRESSURE SENSOR (BPS) | |
| CMP Sensor Power Supply (+5V) | Rail Pressure Sensor (RPS) | |
| 88 | TPS 1 and 2 Power Supply (+5V) | Electronic Throttle Control (ETC) module |
| 89 | HO2S [Bank 1 / Sensor 1] Heater Control Output | Heated Oxygen Sensor (Bank 1, Sensor 1) |
| 90 | - | |
| 91 | HO2S [Bank 1 / Sensor 2] Heater Control Output | Heated Oxygen Sensor (Bank 1, Sensor 2) |
| 92 | - | |
| 93 | ECTS Solenoid Valve Control Output | Engine Coolant Temperature Sensor (ECTS) Control Solenoid Valve |
| 94 | PCSV Command Output | PURGE CONTROL SOLENOID VALVE (PCSV) |
Wiring Diagram
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