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Post by ironman on Sept 27, 2024 21:18:03 GMT
Can anyone help identify where the fault is ?
Local data bus
U103000
Static
High Pressure Sensor
B10AE29
Static
Fresh air blower, front
B10BE29
Intermittent
Another scan also had shown but cleared and hasn't returned:
Temperature Flap Motor:
B108F54
Static
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Post by dv52 (Australia) on Sept 27, 2024 22:06:31 GMT
ironman : Hi. Hmm........ the errors are telling you that the 08 module is unhappy about the sensors that live on the LIN bus #1. Not sure if you are aware about LIN (Local Interconnect Network) - if not, it's a low-speed, single wire communication protocol that the air-con module uses to talk to the Pressure sender for refrigerant circuit (G805) and the Fresh air blower control unit (J126). There is simply insufficient data in your post to make an informed comment -but have you checked fuses? Also, both the components above are routed from the module via pin #14 on the RED connector on coupling point TIUL. The connector is labelled "D" in my picture below. I suggest that you eyeball and test the connector as an easy first try
Don
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Post by ironman on Sept 27, 2024 23:11:36 GMT
Hi There, Thanks for your reply. That may be a bit more complicated for me. I do have OBDeleven, Not sure what I could extract from there. I have found another post you commented on a while back: www.vwvortex.com/threads/problem-in-fan-speed-control-manual-hvac.9511371/Resolution according to: PassatPhaeton was the AC pressure sensor. I have noticed that in the live data I see: Refrigerant pressure: 51.0 bar - Seems odd. compressor shut-off requirement: malfunction at refrigerant pressure sensor blower status: error I am wondering if it's the same fault and whether the pressure sensor could be the culprit. Cheers! |
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Post by ironman on Sept 28, 2024 14:51:17 GMT
Hello Mate,
Thanks a lot for your assistance.
Found the issue! The connectors in your diagram which you attached "specifically the red one" was covered in water. I have no idea how water got to them.
I disconnected the red connector block and the blower motor started spinning. I dried out the red connector and any other water on the connectors, Plugged it back in and everything is working again.
Any ideas how water/moisture has gotten in there ?
I owe you a beer but I am probably on the other side of the World to you.
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Post by dv52 (Australia) on Sept 28, 2024 21:05:01 GMT
OK - yes, the trick in your case was the fact that both the pressure sensor and the blower module share the same LIN wire and they both go-thru the red connector.
As to why water is getting into the area of the coupling point - it could be few reasons. I suggest that you look at the fire-wall grommets and at thw windshield seal as a first try. In any event - keep a eye on the TUIL area until you find the cause!
Don
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Post by ironman on Sept 29, 2024 12:31:57 GMT
Makes sense. I noticed that the foam padding where the door wiring comes into the Car was slightly wet/damp. I suspect that is the source but everything does appear to be water tight. It has been raining a lot more than usual in the UK so I won't out the trim back on just yet. I'll let it rain again and then inspect.  Thanks again! |
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