Component Description For ME-SFI (ME) Control Unit - GF07.61-P-6000KJ
ENGINE 281.910 in MODEL 453.0/3/4
Vehicle view of the rear left (shown on model 453.0)
Location
The ME-SFI [ME] control unit is located behind the right cover in the cargo area.
Tasks
The ME-SFI [ME] control unit fulfills the following tasks:
- Controlling the engine basic functions
- Reading in of signals
- Evaluation of input factors
- Output of signals and actuation of assembly parts
Controlling the engine basic functions
- Ignition
- Start
- Fuel supply
- Injection control
- Ignition system
- Synchronization of injection and firing order
- Start, post-start phase and warm-up enrichment
- Rpm control
- Alternator interface
- Lambda control
- Thermal management
- Torque coordination
- Deceleration fuel shutoff
- Knock control
- Camshaft adjustment
- Engine limp-home mode
- European On-Board Diagnosis
- Engine management Start-Stop
- Charging (ATL)
- Exhaust aftertreatment
- Electronic accelerator
- Capturing fueling gases (for code 494 (USA version))
- Purging
- System purging with leak test (for code 494 USA version))
Reading in of signals
Input factors are read in over the following connections:
- Direct line
- Interior CAN (CAN B)
Evaluation of input factors
The input factors that have been read in are evaluated by the integral microprocessor, and the relevant components are actuated.
Output of signals and actuation of assembly parts
Initial parameter are output over the following connections:
- Direct line
- Interior CAN
Input factors and initial parameters for the following assembly parts are read in or output over direct lines by the ME-SFI [ME] control unit and are needed by the engine management:
| Input factors over a direct line | Initial parameters over a direct line | Supplemental information |
|---|---|---|
| Circuit 15 (fused) | - | - |
| Circuit 30 (fused) | - | - |
| Circuit 31 | - | - |
| Terminal 87 | - | - |
| Knock sensor (A16) | - | - |
| Fuel tank pressure sensor (B4/3) | - | With CODE 494 (USA version) |
| Intake camshaft Hall sensor (B6/15) | - | - |
| Coolant temperature sensor (B11/4) | - | - |
| Intake air temperature sensor (B17) | - | - |
| Charge air temperature sensor (B17/8) | - | - |
| Pressure sensor upstream of throttle valve (B28/6) | - | - |
| Pressure sensor downstream of throttle valve (B28/7) | - | - |
| Accelerator pedal sensor (B37) | - | - |
| Vehicle interior fuse and relay module (F2) | - | - |
| - | Engine function circuit 87 relay (F11k1) | - |
| - | Fan relay (F11k2) | Fan (M4/4) in engine compartment |
| - | Ignition coils/fuel pump actuation relay (F11k3) | - |
| On-board electrical system battery (G1) | - | - |
| Oxygen sensor downstream of catalytic converter (G3/1) | Oxygen sensor downstream of catalytic converter (G3/1) | - |
| Oxygen sensor upstream of catalytic converter (G3/2) | Oxygen sensor upstream of catalytic converter (G3/2) | - |
| - | Fan motor (M4/7) over fan solenoid switch, internal combustion engine cooling ICE (K32) | Vehicles with code I01 (Automatic air conditioning) or with code I77 (Manual air conditioning system) |
| - | Fan motor (M4/7) over fan relay (F1k1) | Vehicles with code I78 (Heating system) |
| Crankshaft position sensor (L5) | - | - |
| - | Throttle valve actuator (M16/6) Actuator motor (M16/6m1) | - |
| Throttle valve actuator (M16/6) Actual value potentiometer 1 (M16/6r1), throttle valve |
- | - |
| Throttle valve actuator (M16/6) Actual value potentiometer 2 (M16/6r2), throttle valve |
- | - |
| - | Boost pressure control flap actuator (M16/7) | - |
| Cruise control/variable speed limiter switch (S40/4s6) | - | - |
| Oil pressure switch (S41/2) | - | - |
| - | Charge air cooler circulation pump (M44) | Apart from model 453.062/362/462 BRABUS, controlled over the switching contact in the charge air cooler circulation pump. |
| - | Charge air cooler circulation pump (M44) | For model 453.062/362/462 BRABUS, controlled over the pulse width modulation (PWM). |
| - | Cylinder 1 ignition coil (T1/1) | - |
| - | Cylinder 2 ignition coil (T1/2) | - |
| - | Cylinder 3 ignition coil (T1/3) | - |
| - | Secondary air injection pump switchover valve (Y32) | With CODE 494 (USA version) |
| - | Variable camshaft adjustment valve (Y49/10) | - |
| - | Fuel tank vent valve (Y58) | - |
| - | Activated charcoal canister shutoff valve (Y58/4) | With CODE 494 (USA version) |
| - | Cylinder 1 injection valve (Y62/1) | - |
| - | Cylinder 2 injection valve (Y62/2) | - |
| - | Cylinder 3 injection valve (Y62/3) | - |
| - | Deceleration air switchover valve (Y101) | - |
| - | Engine oil pump valve (Y130) | - |
Input and initial parameters from the following assembly parts and control units are sent or received by the ME-SFI [ME] control unit via the CAN and are needed by the engine management:
| Input factors via the interior CAN (CAN B) | Initial parameters via the interior CAN (CAN B) | Supplemental information |
|---|---|---|
| Instrument cluster (A1) | Instrument cluster (A1) | For code K35 (instrument cluster with monochrome display) for code K36 (Instrument cluster with 8.9 cm (3.5") color display) |
| Distance warning function controller unit with radar sensor (A89) (for code 252 (AWF)) | - | Via the front end CAN (CAN G) and AWF Gateway (N93/2 for code 252) (AWF) |
| Supplemental Restraint System control unit (N2/10) | - | - |
| Center SAM control unit (N10/10) | Center SAM control unit (N10/10) | - |
| Driver-side SAM control unit (N10/11) | Driver-side SAM control unit (N10/11) | - |
| Climate control control unit (N22/1) (for code I01 (AAC)) | - | - |
| Electronic Stability Program control unit (N30/4) | - | - |
| Diagnostic connector (X11/4) | Diagnostic connector (X11/4) | - |
| Input factors via the drive train CAN (CAN C) | Initial parameter via the drive train CAN (CAN C) | Supplemental information |
|---|---|---|
| Dual-clutch transmission control unit (N15/13) | Dual-clutch transmission control unit (N15/13) | For code 429 (twinamic) |
Power supply
The ME-SFI [ME] control unit is "circuit 30 fused" and also supplied with a voltage for ignition ON by "circuit 87".
In the operating voltage range it has both short-circuit protection and reversed polarity protection.
Power is supplied through several engaged parallel pins connected in parallel to relieve the electrical connections.
Ground connection
The "circuit 31" ground connection is connected through multiple ground lines to the internal combustion engine ground point 2 (W11/16).
| Wiring diagram for ME-SFI [ME] gasoline injection and ignition system control unit | Connector AA | PE07.61-P-2101-97BBA | |
| Connector AC | PE07.61-P-2101-97BBB | ||
| Connector AB | PE07.61-P-2101-97BBC |