Hi everyone,
Hope everyone is having a great week so far.
I've got the following codes - which Lizzard-T has also explained on another post about my lights.
These are the remaining ones:
P0671 + P0672 + P0673 + P0674 = Cylinder 1/2/3/4 Glow Plug Circuit
U1511 + U1521 = LIN Bus 1/2 Lost Comms with Device 1 - I'm just assuming for now these are relating to the cheap ballasts in at the moment, rather than an AFL sensor that may not be working...
U0078 = Control Modd Comm Low Speed CAN Bus Off - I'm not sure what this code actually means, but Lizzard-T already suggested checking the wiring harness on the throttle body (not sure where that is, research time) and to remove the induction hose (not sure where or what one that is, at the moment, unless it was the turbo charger intake hose that is known to split, accessible via the fog light etc.) from the throttle body and cleaning if contaminated. What actually is this code though?
U0121 = Lost Comms with Electronic Brake Control Module - Which again Lizzard-T mentioned this is to do with the ABS and maybe voltage spikes? Not sure if/what to do to fix though, but doesn't seem too serious
They are all permanent codes besides the last one - U0121, so maybe it is just spikes.
Now, onto my main question...
What should I check/test to see if they are actually faulty or if it's something else?
I've searched the forum, seen some similar issues, but not yet one with all 4 codes at the same time.
I'm not sure that ALL 4 would have an issue or go at the same time... equally, they well could have. My car seems to start fine. It was slow to start once on a rather cold day but still started first time. I did see that little spiral sign come on briefly the other day, which I think is the heating process for the plugs, though think that's supposed to happen... no check engine light yet. Is there something that controls ALL the plugs? Or maybe something that would affect all 4 at the same time perhaps?
I did take out that turbo boost pipe, as it was filthy on the outside from the top down and seemed to be getting worse from when I last checked it, however, there was NO split... so wasn't sure what it was. It did seem to be getting dirtier from the connection at the top... maybe the o-ring failed and some oil and dirt was leaking? Anyway, I cleaned it, checked the ring, and put it back to see if it repeated... still clean so far but only did it Sunday, so will keep an eye on it, seems maybe only have to get a new o-ring if so. However, could this link to the Glow Plugs at all? Maybe that could have caused dirty plugs? Are they cleanable if so?
I thought, worth a shot asking and trying before forking out on 4 BERU Sensor Type Glow Plugs - as these are, unfortunately, the pricier ones haha
Hope everyone is having a great week so far.
I've got the following codes - which Lizzard-T has also explained on another post about my lights.
These are the remaining ones:
P0671 + P0672 + P0673 + P0674 = Cylinder 1/2/3/4 Glow Plug Circuit
U1511 + U1521 = LIN Bus 1/2 Lost Comms with Device 1 - I'm just assuming for now these are relating to the cheap ballasts in at the moment, rather than an AFL sensor that may not be working...
U0078 = Control Modd Comm Low Speed CAN Bus Off - I'm not sure what this code actually means, but Lizzard-T already suggested checking the wiring harness on the throttle body (not sure where that is, research time) and to remove the induction hose (not sure where or what one that is, at the moment, unless it was the turbo charger intake hose that is known to split, accessible via the fog light etc.) from the throttle body and cleaning if contaminated. What actually is this code though?
U0121 = Lost Comms with Electronic Brake Control Module - Which again Lizzard-T mentioned this is to do with the ABS and maybe voltage spikes? Not sure if/what to do to fix though, but doesn't seem too serious
They are all permanent codes besides the last one - U0121, so maybe it is just spikes.
Now, onto my main question...
What should I check/test to see if they are actually faulty or if it's something else?
I've searched the forum, seen some similar issues, but not yet one with all 4 codes at the same time.
I'm not sure that ALL 4 would have an issue or go at the same time... equally, they well could have. My car seems to start fine. It was slow to start once on a rather cold day but still started first time. I did see that little spiral sign come on briefly the other day, which I think is the heating process for the plugs, though think that's supposed to happen... no check engine light yet. Is there something that controls ALL the plugs? Or maybe something that would affect all 4 at the same time perhaps?
I did take out that turbo boost pipe, as it was filthy on the outside from the top down and seemed to be getting worse from when I last checked it, however, there was NO split... so wasn't sure what it was. It did seem to be getting dirtier from the connection at the top... maybe the o-ring failed and some oil and dirt was leaking? Anyway, I cleaned it, checked the ring, and put it back to see if it repeated... still clean so far but only did it Sunday, so will keep an eye on it, seems maybe only have to get a new o-ring if so. However, could this link to the Glow Plugs at all? Maybe that could have caused dirty plugs? Are they cleanable if so?
I thought, worth a shot asking and trying before forking out on 4 BERU Sensor Type Glow Plugs - as these are, unfortunately, the pricier ones haha
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