I took the vehicle in and after two days the dealer advised me that the car was reprogrammed. The service advisor stated that I would need reprogramming of the two DME computers. I contacted the dealership which is close to my house and I advised them of what my problem was. After completion of the job, my car's check engine light along with bunch of other warnings came on and the vehicle was not running at all. I had changed the spark plugs and coil packs on my 2013 BMW M5 F10. Words can not describe the level of professionalism from Bryce. The self-diagnosis function checks the voltage, current, temperature, terminal 15 wake up signal as well as system errors in the IBS. Direct diagnosis of the IBS is not possible, it can only be diagnosed through the DME. IBS emergency mode boosts the idle speed in order to sufficiently charge the battery. The DME adopts a substitute value and assumes IBS emergency mode. Do not release or tighten the sensor screwĪ fault code is stored in the DME when the IBS is defective.Use only a torque wrench as described in the repair manual.Do not use the connections of the IBS as a lever.Do not use the IBS as a pivot point to lever off the ground terminal.Do not use force when disconnecting the ground terminal from the battery.Do not make any connections between the IBS and the sensor screw.Do not make any addition connections at the negative terminal of the battery.Particular attention should be paid to the following points in service: The ground cable also serves as a heat dissipater for the IBS. It is serviced as a complete unit with the ground cable. The IBS is very sensitive to mechanical stress and strain. Upon obtaining updated information the DME evaluates the new data and if a closed-circuit current draw is identified a fault will be stored in the fault memory of the DME. Whenever KL15 is activated the IBS updates the DME with the current closed circuit histogram/battery status information, by way of the BSD. The stored information/snap-shot data is overwritten every 6 hours. The current SoC/battery data is stored in the IBS every 2 hours over a 6 hour time frame, providing 3-2 hour snapshots of battery SoC information. Software contained in the microprocessor of the IBS utilizes the measured values to calculate the State of Charge (SoC) of the battery during vehicle sleep mode and compares this information with that received from the DME/ECM pertaining to the battery SoC/SoH, during the period of time between engine “OFF” and deactivation of the DME main relay. The values are forwarded to the DME to calculate the SoH of the battery. Internal resistance of the battery is calculated by the IBS from the current and voltage dip during engine start. SoH helps the DME determine the proper charging rates and anticipated battery life. Charge/dis-charge cycles and times are monitored. State of Health (SoH) tracks the history of the battery.SoC is used during key ”OFF” periods to insure the battery maintains a sufficient charge to start the engine at least one more time. State of Charge (SoC) is a calculated condition showing the current charge of the battery.The measured values from the IBS are provided to the DME by way of the Binary Serial Data Interface (BSD) to calculate the State of Charge and State of Health for the battery. and makes the required measurements within approx. When the vehicle is stationary, the IBS is programmed to wake up every 14 sec. The measuring/evaluation function of the IBS electronics, continuously measures the following values under all vehicle operating conditions: The IBS is able to withstand thermal loads up to 105☌, the chemical effects of the battery acid. Temperature of battery acid via integrated temp sensor.
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