Location of components of the electronic engine management system
| Item name | Spare part catalog number | Description |
| 1 | - | MAF sensor (mass air flow) /IAT (intake air temperature) |
| 2 | - | IMT valve (intake manifold adjustments) |
| 3 | - | CMP sensor (camshaft position) |
| 4 | - | CKP sensor (crankshaft position) |
| 5 | - | Engine oil temperature sensor |
| 6 | - | Knock sensor |
| 7 | - | Ignition coils |
| 8 | - | Heated Exhaust Gas Oxygen Sensor (HEGO) |
| 9 | - | Universal Heated Exhaust Gas Oxygen Sensor (UHEGO) |
| 10 | - | Heated Exhaust Gas Oxygen Sensor (HEGO) |
| 11 | - | Universal Heated Exhaust Gas Oxygen Sensor (UHEGO) |
| 12 | - | Nozzles |
| 13 | - | Knock sensor |
| 14 | - | Spark plugs |
| 15 | - | EOP sensor (engine oil pressure) |
| 16 | - | Differential pressure sensor and EGR valve (exhaust gas recirculation) |
| 17 | - | Electronic throttle |
| Item name | Spare part catalog number | Description |
| 1 | - | Power relay |
| 3 | - | Transfer case controller |
| 2 | - | ECM (engine control unit) |
| 4 | - | Brake light switch |
| 5 | - | Clutch switch |
| 6 | - | ABS control unit (anti-lock braking system) |
EMS Engine Control Circuit
NOTE: A = Wired
| Item name | Spare part catalog number | Description |
| 1 | - | Power relay |
| 2 | - | CKP (crankshaft position) |
| 3 | - | CMP (camshaft position) |
| 4 | - | ECT sensor (coolant temperature) |
| 5 | - | APP sensor (accelerator pedal position), |
| 6 | - | MAF (mass air flow) |
| 7 | - | Engine oil temperature sensor |
| 8 | - | MAP sensor (manifold absolute pressure), |
| 9 | - | Brake light switch |
| 10 | - | Knock sensor |
| 11 | - | Fuse 25P |
| 12 | - | ECM (engine control unit) |
| 13 | - | Fuse 60P |
| 14 | - | Ignition switch |
| 15 | Fuse link 11E |
NOTE: A = Wired; D = CAN bus (local area network of controllers)
| Item name | Spare part catalog number | Description |
| 1 | - | Nozzles |
| 2 | - | Engine cooling system fan. |
| 3 | - | IMT valve (intake manifold adjustments) |
| 4 | - | ABS control unit (anti-lock braking system) |
| 5 | - | Instrument panel |
| 6 | - | TCM (transmission control unit), |
| 7 | - | RCM (airbag and seat belt control unit) |
| 8 | - | Differential controller |
| 9 | - | Transfer case controller |
| 10 | - | Parking brake controller |
| 11 | - | ATC Block (automatic temperature control) |
| 12 | - | Universal Heated Exhaust Gas Oxygen Sensor (UHEGO) and Heated Exhaust Gas Oxygen Sensor (HEGO) |
| 13 | - | Ignition coils |
| 14 | - | Universal Heated Exhaust Gas Oxygen Sensor (UHEGO) and Heated Exhaust Gas Oxygen Sensor (HEGO) |
| 15 | - | Generator |
| 16 | - | ECM (engine control unit) |
| 17 | - | Differential pressure sensor/EGR valve (exhaust gas recirculation) |
| 18 | - | Spiral spring |
| 19 | - | Cruise control switches |
| 20 | - | Electric throttle body |
General Provisions
The 4.0-liter V6 engine is controlled by the ECM. (engine control unit) manufactured by DENSO. The Engine Management System (EMS) controls the following:
- Fuel supply to the engine
- Distribution of ignition timing
- Closed circuit fueling
- Detonation control
- Idle speed adjustment
- Reducing exhaust toxicity
- On-board diagnostics
- Providing an interface with the anti-theft system
- Cruise control
The article is based on data from the website LRman.ru
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