How Do You Know If Car Battery Is Weak. The engines computer is in charge of the crankshaft position sensor so if it detects a problem you will experience weak car battery symptoms. If the crankshaft position sensor isnt working properly it can cause the cars internal computer the engine control unit not to function correctly.
You turn the key and the engine cranks making a sluggish. What are the signs of a weak fob batteryAs the fob battery becomes weaker the transmitter loses its range. It might be your starter it might be something else but 94 of the time its really your battery even if the car is cranking fairly vigorously.
There are a few things to inspect such as.
Cranks or clicks but wont. This test will reveal whether or not your battery is fully charged. Most car batteries with the exception of electric vehicle batteries will only live for three to five. 1 Inspect the Battery.
