Q: I have toyota tundra 4.7 2007 the battery light show before start my car but when start its gone , is normal stay ON before start?

asked by on

Hello , I have a Toyota Tundra 2007 4.7 , its normal that my truck stay showing battery light before start the ignition key? I mean , when I turn ON the ignition key my car show all the lights and after that all of them going OFF but battery light stay ON but when I start my truck Disappears completly , I check the alternator and show in my multimeter 13.7vdc and my battery is brand new with 12.7vdc, so practically I check all my fuses in case I have a short but nothing showing in short , I never saw this before in my dashboard , there are something else to check ? Can you tell me , or if there are one way to reset battery light at dashboard , I appreciate your help , I'm electrician but nothing show in short , maybe stayed in the computer as alarm , please can tell me what else can I do?
Thank you very much before hand .

My car has 87000 miles.
My car has an automatic transmission.

The alternator charging light should be on when key is on without engine running. As soon as you start the engine the light should be off if the system is charging. Since you are getting 13.7 volts after it starts then the system is operating normally. If you see the light come on when the engine is running then it would have a problem.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. I have toyota tundra 4.7 2007 the battery light show before start my car but when start its gone , is normal stay ON before start?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Lost car remote

Hi and thanks for contacting YourMechanic. Yes you can get another remote and program it to match your vehicle, but make sure that the remote is programmed to the VIN of the vehicle if you tend to get it from...

Q: MY truck wouldn't start this morning after several attempts, now it does. What could have been the problem.

Hi there. From the description you have provided, leads me to believe the slow and no crank may be, a battery and/or battery connection issue. It could also be, a faulty starter relay or starter concern. Proper diagnoses should be...

Q: Truck making a clunking noise

There are several possibilities that could create the noise you are experiencing. The most common is the sway bar end links followed by ball joints. I would have a certified mechanic, such as one from YourMechanic, come to your home...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.