The OBD-II connector is located, under the driver’s side of the dashboard, on the steering column.Then, plug in the memory saver, with its small battery attached into the cigarette lighter or the OBD-II connector.Always turn off the engine, before disconnecting the battery.The steps to use a memory saver are quite easy: Consequently, it stops the electricity from flowing backwards causing damage. A diode, is essentially a one-way valve for electricity. The memory saver tool, incorporates a diode on the positive side. And, the connector just plugs into, the car’s cigarette lighter or the (OBD-II) connector. It has just enough voltage and current, to keep all of the computer memory alive while the cars main battery is disconnected. So, a memory saver, is simply a connector with a small battery.
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Learn How To Safely, Disconnect Your Car BatteryĪ Handy Tool Everyone Could Use, Is A Memory Saver. Finally, it causes a loss of channel settings, on an electronic radio and clock. This is necessary because the vehicle’s charging system is programmed to gradually increase the charging rate, as the battery ages. Replacing the car battery on some vehicles requires entering the new battery info, into the (PCM) with a scan tool. Because, the steering angle sensor will have to undergo a relearn procedure, following the battery disconnect. Loss of power window and/or power sunroof position settings. Because, the anti-theft system thinks, somebody is trying to steal the vehicle. It may, reset or disable the anti-theft system as well. Such as, power windows, memory seats, power sunroof or electronic suspension settings. This can mess up the operation of power accessories. It also, resets the body control module (BCM). Until, the module is programmed, with the correct instructions. So, on some vehicles, that means the A/C will not work. It also, resets the climate control module. Furthermore, the affected module, may prevent the (ABS) or airbag systems from working. The transmission may not feel the same until the (PCM) or transmission control module, relearns the shift adjustments. Because, the air/fuel mixture, is too rich or too lean until the (PCM) can relearn, the fuel trim adjustments. So, It all depends On, The Year, Make And Model Of Your Vehicle. Learn What Can Go Wrong, Before You Disconnect Your Car Battery It can also erase vital learned information that is absolutely necessary for other modules to function normally. So, disconnecting the car battery, to reset the (PCM) on late model vehicles can do more than just erase the keep alive memory. Power accessory functions (door windows, seats, sunroof).Disconnecting A Car Battery, May Cause A Whole List Of Issues: The keep alive memory also includes all the results, for the diagnostic self-tests the (PCM) runs on itself. For example, the fuel mixture, transmission shift points and other control functions. To clarify, adaptive memory contains, the adjustments, the (PCM) has learned over a period of time. On any vehicle that has computerized engine controls, the loss of voltage to the powertrain control module (PCM) causes it to forget its, adaptive memory settings.