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E90 320i Help With OBD II Port
Hi Tino Just re-checked and you are correct 3 - Ethernet RX+ Confirmed 9 - TD (Tachometer Display) Signal / Engine RPM Signal Confirmed 11 - Ethernet RX- Confirmed 12 - Ethernet TX+ Confirmed 13 - Ethernet TX- Confirmed I think your assumption on the ZF trans could well be right also if the resistor is toast it could well screw up the Diagnostics Keep digging Dave -
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E90 320i Help With OBD II Port
Okay so we can rule out the Can protocol being different then. And lol, yes the germans do like to be in control 😂 Well if most Japanese E90's are pinned like this then BMW definitely had a means to connect to these vehicles with just this amount of pins present. If it's supposed to be 3, 4, 5, 6, 8, 9, 11, 12, 13, 14 & 16, and the one i'm working on only has 4, 5, 6, 8, 14 & 16 then is there a chance that the missing ones are the key to allowing other scanners to connect to the vehicle? Correct me if I'm wrong but I believe the function of those missing pins (3, 9, 11, 12 & 13) are: 3 - Ethernet RX+ 9 - TD (Tachometer Display) Signal / Engine RPM Signal 11 - Ethernet RX- 12 - Ethernet TX+ 13 - Ethernet TX- But so I hear that these are non standard pins and should not interfere with diagnostics. Ahh the diagram you pulled for 2007 only is the same pinout on one of the parts cars I have. The one with the ZF transmission. So there's a good chance that for that particular year, any E90 320i that came with a ZF trans probably had that pinout instead of the one were looking at now has. I found out that the capacitor is actually a resistor. Since that is the case, I wonder if it's interfering with diagnostics? I will do some diagnostics on my end to see if there is a module that is causing the issue. Many thanks again 🙏 -
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E90 320i Help With OBD II Port
Morning Tino I don't think they use a different Can protocol as Dealers still need to communicate with BMW from time to time and we know how the German mind like s to be in control 🤣 The Can protocol should be D can. Wiring Diagram shows 2.0i 2007 on as Pins 3, 4, 5, 6, 8, 9, 11, 12, 13, 14, 16 all populated colours as follows 3, Red 4, Brown 5, Brown/black trace 6, White/Yellow trace (D can H) 8, Blue/Yellow trace 9, Black 11, Blue/Red trace 12, Green 13, Red/Green trace 14, White/Blue trace (D can L) 16, Red/Yellow trace My wiring diagrams for the 2.8i are exactly the same. Pre 2007 (2004 up to 2007) It shows Pins 1, 4, 5, 6, 7, 9, 14, 16 populated Wire colours are 1, Green/Brown trace 4, Brown 5, Brown/Black trace 6, White/Yellow trace (D can H) 7, White/Violet trace 9, Black 14, White/Blue trace (D can L) 16, Red/Yellow trace Just found another Diagram marked 2007 only shows pins 1, 4, 5, 7, 9, 16, colours are 1, Green/Brown trace 4, Brown 5, Brown/Black trace 7, White/Violet trace 9, Black 16, Red/Yellow trace (not sure if this helps or hinders) Again as far as I am aware Left and Right hand cars are the same If it is JBE issues they are easy to swap but will need a Diagnostic scan capable of registering the replacement (I have INPA/ISTA) BMW make a big deal of it (can only be done by them) but as always it can be done I have changed a few Footwell modules and Junction boxes Good Luck Dave -
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E90 320i Help With OBD II Port
Well hello again Dave 👋, I'll start by thanking you for trying to assist me once again! But yes, I sure do love a challenge 😂 Okay so to my understanding pins 3, 8, 11, 12 & 13 are missing? I was told by another fellow that those missing pins are only present if the vehicle has a CIC screen, is that correct? I'd imagine the pinout both you and the other fellow provided me with for a 2008 320i are the correct ones for this particular Japanese model, probably because like you say, they are not able to accommodate bluetooth scanners. I do have a scanner with external power, but that is also not able to make a connection with the vehicle. Are you able to pull a pinout of the OBD II port for a 2008 328i that is left hand drive? Because those do support bluetooth scanners & American style scanners. I'm curious to see what the difference is, maybe a pin outside of those 5 missing pins is the reason why I'm not able to fully connect to the vehicle. I already checked the Fuse Panel Behind The Glove Box, all fuses are fine and none are missing. Spent like an hour confirming that. I haven't checked the DME for corrosion yet or the fuses inside that same box. I'll be doing that shortly. What is your take on this Dave? Is there maybe a missing wire preventing communication? Maybe the ignition 12+ volt power? Is it possible that the capacitor that pins 6 & 14 attach to is causing some kind of issue? The plastic surrounding the capacitor has a BMW logo on it so it is factory for sure, just not sure what it's purpose is. Or, is it possible that the Japanese E90's use a different CAN protocol from the standard one the other E90's use? I thought BMW standardized their CAN protocol after the E46 though. Could also be a bad JBE hmmm -
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Advice needed on replacement valve cover
Morning Darren Welcome to the Forum Best case check the Rocker cover Vent pipe easy to replace Worst case Cylinder Head Cover gasket needs replacing Take a look at www.realoem.com put the last 7 digits of your Vin into the Search box it will bring up your Model Then in Engine look the Cylinder head cover. Use the part numbers to make sure you get the correct parts The job is a DIY proposition but there is a huge amount of trim and engine bay bracing to take off before you get near the nitty gritty 😅 Top tip take pictures so you make sure it all goes back where it's meant to. Tools needed a good socket set (3/8 and 1/4 drive) trim clip removal set and buckets of patience 😁 I believe there are a couple of good videos on You tube that should help Good Luck Dave
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