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BMW 3-Series (E90 E92) Forum
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Fault Codes
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05-28-2019, 03:41 PM | #1 |
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Fault Codes
Evening folks, anyone explains these fault codes or possible fixes for them
A0B3 - Starter Motor Terminal 50 416F - Zero Gear Position Adjustment 4A4F - Glow Control Unit 4A27 - Message: Intelligent Battery Sensor Missing 4A07 - Message: Alternator Missing 4A10 - Data Bus Communication Fault 4B37 - Message: Oil Condition Sensor 9CB2 - Headlight Vertical Ain Control Potentiometer Defective A559 - Instrument Cluster Power Supply Has Been Switched Off (Closed-circuit Current Cutoff Relay) Any info would be appreciated. Regards |
05-28-2019, 04:44 PM | #2 |
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Usually the recommendation for that many fault codes is to make sure your battery is good. Given the 4A27 and A559 codes, my guess would be the battery is going bad or IBS sensor damaged from poor installation?
If it's too old or a battery test says its bad.. then replace it and delete all the codes and then see what pops up after a drive. |
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05-28-2019, 06:59 PM | #3 |
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The battery is only 12 months old and has been coded, IBS was a problem before the new battery. IBS changed twice, the two IBS were from cars that were parted out and still brings up the code. Maybe a new IBS would be the way to go?
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08-07-2019, 10:27 PM | #4 |
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My Fault Codes
Hi, i don't know much about BMW's yet but i do own a 2011 BMW 335is e93 DCT. Recently, the check engine light has come on. it's the yellow check engine light indicating that the engine is using only half power. The symptoms i have experienced are:
• RPM's go a little higher than usual when switching gears • Significant Less Power I ran the codes, and this is what i found: 2AAF Fuel Pump, plausibility 30FF Turbocharger, boost pressure too low HPFP: 48.63 Bar LPFP: 4.68 Bar ENGINE COOLANT (°c): 103.50 N43 Target Value: Idle speed: 150 Bar N54 Idle (Pressure stabilizes 30 seconds after engine start) Target value: 50 Bar N53 Engine Temperature < 65°C and Engine Speed < 1000rpm Target Value: 150 bar N53 Engine Temperature < 65°C and Engine Speed > 2000rpm Target Value: 180 bar N53 Engine Temperature > 70°C Target Value: 200 bar Can anyone tell me what this means? i'm really trying to figure this out and i need to know EXACTLY what i need to fix before i purchase anything... thank you! |
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09-26-2020, 12:57 PM | #5 | |
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Quote:
did you solve your problem? I have exactly the same fault codes. |
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09-28-2020, 01:27 AM | #6 |
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Get a voltage meter and check the 5 terminals on the battery fuse and see if any are messed up. I’ve heard of messed up battery blocks causing this problem
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02-14-2024, 08:39 AM | #7 |
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Hey!
I just bought a BMW 320d 2008 e90, I have the same problem, i get BSD: alternator missing BSD bus communication fault BSD oil condition sensor missing Then i bought a new battery and now i get the same fault AND BSD intelligent batttery sensor missing Any help? |
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