The Trainer #56 - Battery and Charging System Testing Tips
19.5 هزار بار بازدید -
8 سال پیش
-
The battery residing under the
The battery residing under the hood (or back seat or trunk) is still essentially the same as it has been for decades. The vehicle to which it is attached, however, shares very little in common with its older predecessors. In the name of increasing fuel economy (mandated by Federal CAFE standard to reach 54.5 MPG by 2025), many of the traditionally mechanical systems on the car have been recreated to operate electronically. But that presents a “Catch 22” of sorts – adding electrical demand requires more from the battery and charging system which, in turn, robs more from the engine (something has to turn the alternator) and reduces fuel economy.
The solution has been a variety of charging system strategies that tailors charging system output to specific need. Some strategies are becoming so precise that installing a battery that is not approved can result in reductions in fuel economy and unexplainable Diagnostic Trouble Codes (DTCs). Other OEMs actually require you to use a scan tool to update the Engine Control Module (ECM) when you replace the battery, even if it is the exact replacement called for.
The good news is that testing these systems still starts with the fundamental techniques of checking open circuit voltage, battery loaded voltage and system charging voltage. The interpretation of these results depends on the vehicle specifics, but you already know I’m going to tell you to read up on those system specifics before you start any kind of testing, don’t you?
More and more, techs are reporting they are finding a variety of concerns related to a bad or incorrect battery. So don’t let this simple component be the cause of your diagnostic frustration. Watch the August Trainer!
#battery_service #battery_testing #howtotestabattery
Due to factors beyond the control of Motor Age, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. Motor Age magazine (UBM Americas - Automotive Group) assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Motor Age recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of Motor Age, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not Motor Age magazine or its corporate parent, UBM Americas.
The solution has been a variety of charging system strategies that tailors charging system output to specific need. Some strategies are becoming so precise that installing a battery that is not approved can result in reductions in fuel economy and unexplainable Diagnostic Trouble Codes (DTCs). Other OEMs actually require you to use a scan tool to update the Engine Control Module (ECM) when you replace the battery, even if it is the exact replacement called for.
The good news is that testing these systems still starts with the fundamental techniques of checking open circuit voltage, battery loaded voltage and system charging voltage. The interpretation of these results depends on the vehicle specifics, but you already know I’m going to tell you to read up on those system specifics before you start any kind of testing, don’t you?
More and more, techs are reporting they are finding a variety of concerns related to a bad or incorrect battery. So don’t let this simple component be the cause of your diagnostic frustration. Watch the August Trainer!
#battery_service #battery_testing #howtotestabattery
Due to factors beyond the control of Motor Age, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. Motor Age magazine (UBM Americas - Automotive Group) assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Motor Age recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of Motor Age, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not Motor Age magazine or its corporate parent, UBM Americas.
8 سال پیش
در تاریخ 1395/05/18 منتشر شده
است.
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