TDV6 Engine Management System Components Location
| Item name | Spare part catalog number | Description |
| 1 | - | Knock sensors |
| 2 | Fuel Rail Pressure Sensor | |
| 3 | High pressure fuel pump | |
| 4 | Cooler/EGR valve (exhaust gas recirculation systems) | |
| 5 | Nozzle | |
| 6 | Boost pressure control | |
| 7 | CKP sensor (crankshaft position) | |
| 8 | Oil temperature sensor | |
| 9 | CMP sensor (camshaft position) | |
| 10 | MAF sensor (mass air flow) /IAT (air intake temperatures) | |
| 11 | Charge air temperature sensor | |
| 12 | Glow plugs | |
| 13 | Electronic throttle with MAP sensor (manifold absolute pressure) | |
| 14 | Glow Plug Wiring Harness |
| Item name | Spare part catalog number | Description |
| 1 | Power relay | |
| 2 | Transfer case controller | |
| 3 | ECM (engine control unit) | |
| 4 | APP sensor (accelerator pedal position) | |
| 5 | Brake light switch | |
| 6 | Clutch switch | |
| 7 | ABS control unit (anti-lock braking system) |
TDV6 Engine Management System Schematic
NOTE: A = Hardwired connection; D = CAN bus (local area network of controllers)
| Item name | Spare part catalog number | Description |
| 1 | Glow plugs | |
| 2 | Cooling fan for the control system mounting box | |
| 3 | Vacuum port shut-off actuator | |
| 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 | Transfer case controller | |
| 9 | Differential controller | |
| 10 | Parking brake controller | |
| 11 | Terrain Response™ Controller | |
| 12 | Boost Pressure Controller | |
| 13 | Cooler/EGR valve (exhaust gas recirculation systems) | |
| 14 | Generator | |
| 15 | Cruise control buttons located on the steering wheel | |
| 16 | Spiral spring | |
| 17 | ECM (engine control unit) | |
| 18 | Electronic throttle valve | |
| 19 | Injectors |
NOTE: A = Hardwired connection
| Item name | Spare part catalog number | Description |
| 1 | Power relay | |
| 2 | CKP sensor (crankshaft position) | |
| 3 | CMP sensor (crankshaft position) | |
| 4 | ECT sensor (coolant temperature) | |
| 5 | APP sensor (accelerator pedal position) | |
| 6 | MAF sensor (mass air flow) /IAT (intake air temperature) | |
| 7 | Engine oil temperature sensor | |
| 8 | Fuel Rail Temperature Sensor | |
| 9 | Boost pressure sensor | |
| 10 | Charge air temperature sensor | |
| 11 | RCM (airbag and seat belt control unit) | |
| 12 | Brake light switch | |
| 13 | Knock sensors | |
| 14 | ECM (engine control unit) | |
| 15 | Fuse 60P | |
| 16 | Fuse 25P | |
| 17 | Ignition switch | |
| 18 | Fuse 11E |
Review
The TDV6 engine is equipped with an electronic engine management system (EDC) from Siemens. This system is controlled by the eCm unit (engine control unit) and is capable of monitoring, adjusting and precisely regulating fuel injection. ECM (engine control unit) uses input signals from various sensors and precisely controls actuators to ensure optimal dynamic performance under all driving conditions.
ECM (engine control unit) controls the fuel supply to all six cylinders via a common rail (CR) injection system. The common rail fuel system consists of a fuel rail, which contains fuel under very high pressure, and six electronically controlled injectors. The fuel rail is located close to the injectors, which helps maintain full system pressure at each injector at all times.
ECM Block (engine control unit) uses the drive-by-wire principle to control acceleration. There are no rods between the engine and the accelerator pedal (the pedal is "uncoupled" from the engine). Commands from the accelerator pedal are transmitted to the ECM (engine control unit) via 2 potentiometers, which are located in the throttle position sensor. ECM (engine control unit) uses 2 signals to determine the position, speed and direction of pedal movement. The ECM then (engine control unit) uses this data, along with other engine information from other sensors, to achieve optimal engine response.
ECM (engine control unit) processes the following incoming information:
- CKP sensor (crankshaft position)
- CMP sensor (crankshaft position)
- Temperature and air pressure in the manifold
- Coolant temperature
- Oil temperature
- Air flow and intake temperature
- Fuel temperature in the fuel rail
- Knock sensors (one per cylinder bank)
ECM control output signals (engine control unit) are sent to the following sensors and actuators:
- Nozzles
- Viscous Fan Clutch Electromagnet
- Electronically controlled throttle body
- Turbocharger with electronically controlled vanes
- Disabling ports
- Fuel pressure control valve
- Fuel supply control valve
- Fan of the control system mounting box
- Engine mounts
- Electronic EGR system (exhaust gas recirculation systems)
- Glow plugs
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