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which ecu activates "engine exhaust fault lamp"

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MaBahar

New Member
i am working on CAN messages in haima s5 and i want to recognize all of the activated light faults in ICM (instrument control system).
can you tell me which module activates "engine exhaust fault lamp"?
 

gophert

Well-Known Member
Most Helpful Member
i am working on CAN messages in haima s5 and i want to recognize all of the activated light faults in ICM (instrument control system).
can you tell me which module activates "engine exhaust fault lamp"?
42
 

Mickster

Well-Known Member
Most Helpful Member
I'm not aware of any "engine exhaust fault lamp" as an individual tell-tale indicator, but the EML (Engine Management Light), CEL (Check Engine Light) and other derivatives, will be illuminated on the instrument cluster, due to fault(s) identified within the ECM (Engine Control Module), PCM (Powertrain Control Module) and other similarly described ECU's (Electronic Control Units)

Is the light you refer to shown in this below image?:
eml.png

Regards.
 

Externet

Active Member
Has to be the engine control unit the one sensing the exhaust temperature and producing its corresponding error code. The other control units are unrelated to such.
 

MaBahar

New Member
I'm not aware of any "engine exhaust fault lamp" as an individual tell-tale indicator, but the EML (Engine Management Light), CEL (Check Engine Light) and other derivatives, will be illuminated on the instrument cluster, due to fault(s) identified within the ECM (Engine Control Module), PCM (Powertrain Control Module) and other similarly described ECU's (Electronic Control Units)

Is the light you refer to shown in this below image?:
View attachment 113067

Regards.
yes. the first one. top on the left.
 

Ian Rogers

User Extraordinaire
Forum Supporter
Most Helpful Member
Two faults generated.... On diesels the DPF... This is a full particle filter... Engine ECU.
The petrol engines have one or two oxygen sensors mounted on or near the catalyst... Also controlled by the engine ECU
 
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