In this situation, replacing your battery will usually solve the problem. 4 Symptoms of ECM Failure. There are a few things that can tip you off that there’s a problem. Here are the four most common symptoms of a bad ECM computer: The Check Engine Light is on. There are many reasons your Check Engine light can turn on. I think low battery power is the culprit. 2019 BMW X5 xDrive40i, arctic grey metallic 2021 BMW X3 M40i, carbon black metallic. Save Share. Reply Quote. B. billbmw.
Alternator performance and Battery Drain are two separate issues. The alternator output is controlled by the ECU and doing much more than just charging the battery. Monitoring the system voltage minutely is pointless. 14.8 VDC is the proper maximum battery charging voltage. NewTIS.info has procedures to check battery ***8220;drain***8221; and
2020 BMW X5 2019 BMW M2C 2014 BMW 335i 2009 BMW 328i. IF this is the "battery management" message vice an actual low battery message and it keeps coming back, you
These general instructions may vary depending on the diagnostic scanner model you use to troubleshoot BMW vehicles. Plug the OBD-II scanner into the diagnostic port under the dashboard. Turn on the ignition; don’t start the engine. Turn on the scanner and select your BMW chassis. Next, Select the Control Units menu.
Here are the six most common possibilities when there’s a boost leak. Let’s look at each one in more detail. 1. Turbo Lag. A turbocharger increases how much air fits into the cylinder, so performance and horsepower can also be increased. Before the turbo kicks in, the turbine has to spin fast.
For example, around 13.5 to 15 volts should be supplied to the battery when the engine is on. However, that number drops to at least 12.4 volts in the system with the engine turned off.
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All of these symptoms will contribute to poor engine performance and, as a result, will cause your check engine light to come on. 5. Check engine light. The check engine light can indicate many issues within a car including a faulty throttle body. In more modern cars, an electronic throttle control (ETC) constantly monitors throttle body
Dealer and BMW agreed first of last week to order another car and substitute collateral on the lease. Take about 3/4 weeks for new car to get here. No discussion and no problem. Two days later, the service dept called and said they found the problem. Bad ground wire, which was in one of the battery modules. I'll check this out further. arvgck.
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