1 of 3 5/26/2008 9:01 AM Home Account Contact ALLDATA Log Out Help Select Vehicle New TSBs Technician's Reference Component Search: METRO TOYOTA OK 1997 Mercedes Benz E 300D (210.020) L6-3.0L DSL (606.912) Vehicle Level Powertrain Management Computers and Control Systems Description and Operation Conversion Calculator Description and Operation Notes Zoom Sized for Print Design 10 Inline injection pump B11 B17 B28 Coolant temperature sensor Intake air temperature sensor Pressure sensor B28/3 EGR lift sensor CAN K40 Data bus Relay module L5/6 Crankshaft position sensor N3/7 IFI control module
2 of 3 5/26/2008 9:01 AM N14/2 Glow output stage N15/3 ETC control module R25/2 Accelerator pedal position sensor S40 Cruise control switch Y1/1 IFI electrohydraulic shutoff Y1/1b1 Fuel temperature sensor Y22/6 Resonance intake manifold switch over valve Y22/7 Resonance intake line switchover valve Y23/1 IFI fuel metering control Y23/1I1 Fuel rack position sensor Y31/1 EGR vacuum transducer Y31/2 Pressure regulating flap vacuum transducer NOTE: The on board diagnosis II (OBD II) functions are stored in the IFI control module (N3/7). Task Recognizing and storing faults in the fuel injection system. In addition, the ambient conditions when the fault occurs are also stored. Function Fault path tests In certain operating states, fault paths are tested e.g. for short circuit, open circuit, implausible signals and illogical combinations. Notes refault memory Fault memory: fault readout current faults stored faults All inputs/outputs are checked for plausibility during operation. Any fault which exists is stored in the fault memory of the IFI control module (N3/7). The faults remain stored when ignition "OFF" or after disconnecting the car battery. In the case of exhaust-relevant faults, the CHECK-ENGINE (A1e26) malfunction indicator lamp and the readout CHECK-ENGINE ENGINE ELECTRONICS
3 of 3 5/26/2008 9:01 AM in the multifunction display come on. The faults are identified by an OBD fault code. Such faults are e.g.: lift sensor B28/3 EGR vacuum transducer Y31/1 pressure regulating flap vacuum transducer Y31/2 Fault ambient data With the HHT it is additionally possible to display the fault ambient data which existed at the time the fault was stored. Only those ambient data which existed when the fault first occurred, are stored. The ambient data are distributed over several image pages (up to 8 image pages), the last two image pages being intended solely for Development. Image pages with the result V/F explain the causes of the fault e.g.: voltage too high voltage too low signal too large signal too small value implausible Definition: test readiness The corresponding fault path tests and function chains must have been fully conducted at least once after ignition ON up to ignition OFF (one operating cycle). Accordingly, two "completed" tests can only be achieved in two operating cycles. Operating cycle An operating cycle is achieved if the following conditions exist Coolant temperature > 60 C Switch off engine Wait 5 seconds after-running Start engine Run engine at idle speed for 20 seconds Rev up engine in P/N position to 2500 rpm and release accelerator Accelerate car in position D to about 70 km/h (WOT acceleration) and then move into deceleration mode up to about 60km/h. 2008 ALLDATA LLC. All rights reserved. Terms of Use
1 of 2 5/26/2008 9:08 AM Home Account Contact ALLDATA Log Out Help Select Vehicle New TSBs Technician's Reference Component Search: METRO TOYOTA OK 1997 Mercedes Benz E 300D (210.020) L6-3.0L DSL (606.912) Conversion Calculator Vehicle Level Powertrain Management Fuel Delivery and Air Induction Description and Operation IFI Smooth Running Control Task/Design/Function IFI Smooth Running Control Task/Design/Function Notes Zoom Sized for Print Design Task
2 of 2 5/26/2008 9:08 AM Reducing irregular running (vibrations) which occur when engine is idling. Function The IFI control module (N3/7) is supplied with an engine speed signal by the IFI/DFI crankshaft position sensor (L5/6) and detects irregularities in engine speed. These engine speed irregularities are rectified by controlling the quantity of fuel injected at specific cylinders. Idling speed therefore remains constant. 2008 ALLDATA LLC. All rights reserved. Terms of Use