ERORi 4298 AND 44E2

[kathalin]

Masina este un e60 530da 2004 si la o diagnoza cu dis a dat erorile din titlu + completarea

44E2 GENERATOR

NO CUMMUNICATION VIA BSD INTERFACE

FAULT CURRENTLY NOT PRESENT

FAULT WOULD NOT CAUSE A WARNING TAMP TO LIGHT UP

SAE DIAGNOSTIC TROUBLE CODE

4298 OGYGEN SENSOR

OXYGEN CONCENTRATION IMPLAUSIBLY LOW

 

Din ce imi dau eu seama prima se refera la alternator si asta o sa il verific saptamana viitoare( dc are vreo importanta bateria indica voltaj de 12.1-12.2 iar dupa vreo 30 de min a mai scazut putin cu motorul oprit si contactul pus) iar cea de-a doua se refera la sonda lambda nu?Este posibil ca dc galeria de evacuare sa fie fisurata sa masoare eronat?Consumul mixt e cam 13,am schimbat bateria,releu de bujii si bujii(asta ca citeam pe undeva ca este posibil sa arate eronat si din cauza la bujii murdare,etc...)

Astept pareri!Multumesc

[IulianC]

Prima eroarea spune ca alternatorul nu comunica cu interfata „Bit Serial Data”. Stiu ca la alternator vine un fir subtire, prin care acesta comunica cu senzorul de pe borna minus IBS (Intelligent Battery Sensor). Daca nu ai rezolvat problema verifica firul asta. Mai mult despre BSD:

Bit-serial data interface (BSD)

The bit-serial data interface is a single-wire data bus with a data transfer rate of 1.2 kBd.

 

The following components are connected across the bit-serial data interface with the DME/DDE control unit:

 

• Alternator
• Intelligent battery sensor (depending on model series)
• Combustion preheating control unit (on diesel engines but not DDE7)
• Electric coolant pump (depending on variant)
• Oil condition sensor (depending on variant)

Only DDE control unit: Each component connected across the BSD is connected to its own pin on the DDE control unit. However, these pins are interconnected in the control unit.

 

 

Function

The following data is interchanged between the DME/DDE and the connected components:

 

• Function commands from the DME/DDE to the components
• Identification data of the components to the DME/DDE
• Operating values of the components and their functions to the DME/DDE
• Fault messages of the components to the DME/DDE

Diagnosis

The DME/DDE monitors the communication across the bit-serial data interface to the connected components. This means that wire faults are also detected.

 

The connected components have their own diagnosis functionality and monitor the following:

 

• The executed functions are monitored for faults (e.g. defective preheating circuit for the combustion preheating control unit)
• Internal faults in the components

If a component detects a fault, it reports the fault across the bit-serial data interface to the DME/DDE. The DME/DDE then enters the fault in the fault code memory.

[kathalin]

Multumesc Iulian!O sa verific .