Car Battery Voltage Low
Code P0562 means that the motor control unit detects a voltage below 10 volts for 1 minute when the motor is running in the electrical system. At 124 volts itll still start your car but is only about 75 percent charged.
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Performance and capacity load test.
Car battery voltage low. Measure the batterys chemistry specific gravity with a hydrometer accurate method. Remember 120 volts means 0 charge for a known good battery. With that in mind normal car batteries are considered to be fully discharged at 105 volts which is only about 80 percent of full.
The voltage when the engine is running should be in the range of 135-147 volts. Each battery is complete with 6 separate cells that each contains 21 volts for a total of 126 volts. Check engine light will probably come on.
Now if the battery test good let us know and well try and help you. A specific gravity of 1269 means that the battery is fully charged. Your cars computer needs a steady stream of voltage to work properly.
If you have a bad car battery it can make your cars engine computer ECU act a little bit nutty. A perfect voltage with the engine running is between 137 and 147V. Consider your car battery charged at 124 volts or higher and discharged at 1239 volts or less.
In the battery is low. It then falls to 125 volts and will not come back up. At 124 volts a car battery is 75 charged while at 122 volts its 50 charged.
P0562 is stored when the engine control unit detects a low voltage in the electrical system. If it reads 120 volts or lower thats a sign that the battery could have a weak ability to hold a charge. The easiest way to solve your problem with the least amount of aggravation is to Simply take the battery and have it tested and go from there.
A reading of 1229 indicates a 75 charge 1194 is a 50 charge and 1159 is 25 charged. In case your car battery can not generate the correct voltage then your cars computer can act up in many different ways. At 120 volts theres much less than a 50 chance that a known good battery will crank the engine over.
Keep the trunk and battery compartment open when charging. With this method a hydrometer measures battery voltage. If your battery tests good the easiest explanation would be that all 126 volts arent reaching the starter due to a poor electrical connection or resistance in the circuit.
With the engine off you should get a reading of 126 volts. Measure the voltage after an overnight charge and 1 hour after disconnecting the charger. Fully charged it should read 126 volts or higher.
At idle vehicle electrical loads may exceed the low speed current amperage output of the generator and when this happens the shortfall comes from the battery. The dash readout for the battery voltage is reading around 125 consistently. Measure its voltage with a volt meter while open-circuit no load general approximation.
That voltage with no load is for a nearly discharged battery. When the engine is turned off there should be 12 volts in the system and when the engine is running the alternator should charge the car with 135-143 volts. Unfortunately good voltage doesnt always mean your battery is healthy.
Normally modern cars use a 12-volt system. If measured at this point the battery reading you will get will be anywhere between 135 to 147 volts. When the car first starts it may be anywhere from 138 to 144 which was always normal.
1124 means you have a dead battery. Determine if your battery is within the healthy voltage range. Car charging systems normally hover at around 14 volts and car batteries will often read about 13 volts when fully and recently charged.
You can connect a charger whilst the battery is in the car. A fully charged car battery voltage for a vehicle that isnt running should fall between 124 volts and 126 volts. If your car battery voltage is discharged or has less than 124 volts the power decreases dramatically.
Track the current flow in and out of the battery with a shunt and associated metering circuit common with alt-energy systems.
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