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Red Warning light on B11

NPS

NPS

Cruisin' Guzzisti
GT Contributor
Joined
Dec 11, 2008
Messages
262
Location
Churchdown, Gloucester, UK
I have had a few instances of the red light coming on when cruising on a motorway with the word "service" appearing. I was not able to stop first time this happened and it cancelled it self. It seems to come on when doing 70mph but if I turn off and go slow it cancels.

I pulled over today and entered the code to get into the diagnostics on the dash. There where no ECU codes and the dash codes showed all 0 for the A column and all X for the M column. Except for rows 02 and 06 that were showing alternating 0 and X about every 2 seconds.

Can anyone give some pointers to find out what the cause of this error condition is?
Thanks in advance
Nigel
 
02 is an immobilizer fault, 06 is an air temp sensor fault. Both may be caused by a poor connection since it is intermittent. This may be the connection to the dash, or the connection to these sensors. The Breva 1100 service manual in the resource section lists these codes.
 
Thank you John.
Do you know the difference between the A and the M column in the Dash diagnostics? Is the A actual and M memory (past) faults?
 
Thank you John. I think I need to reset the error codes and see what comes up. Which leads me on to my next question. The memorised column were all X. The A column were all O. Is X the error condition. If so I really do need to reset as all showing.
 
Please update if you have fixed it. Mines doing the same when I rev it hard. Don't know how to fix it!
 
My B1100 did this. I discovered, by chance, that by re-routeing the lambda sensor wire, the problem was solved, for a while.
The eventual cure was a new lambda sensor.
It's always worth cleaning connections and wiggling wires to try to eliminate an intermittent fault like this.
 
Thks, if this is the case on mine might get rid of the Lamba by fitting an O2 optimiser electronics that plug into the loom end connector and is supposed to improve low rev performance. Heard theses also generate intermitent ecu errors.
 
Nel the best solution is a complete remap. The O2 optimiser only fools the ECU into thinking the lambda is reading differently to what it actually is - you still need the lambda though
 
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