Battery Light came on after obdII check
#11
RE: Battery Light came on after obdII check
ORIGINAL: kfx4001442
I do not have any codes for this truck. Is this a problem? And if so how do I get these codes?
I do not have any codes for this truck. Is this a problem? And if so how do I get these codes?
#15
RE: Battery Light came on after obdII check
The light just went off today! But came back on when the autozone guy hooked his computer up to the battery.
The guy says that they are both good, but the battery needs a charge. Dosn't it get a charge every time I start the engine?
He said that the reading on the machine has to be at least 75 and my truck pulled 91.
If I let it idle and have everything electrical wide open after a few mins the little battery pops up and if I let it go much longer a whole bunch other lights come on aswell. Then If I turn all that stuff off and rev the engine for a few mins the little battery and all the other lights go away.
What's going on?
The guy says that they are both good, but the battery needs a charge. Dosn't it get a charge every time I start the engine?
He said that the reading on the machine has to be at least 75 and my truck pulled 91.
If I let it idle and have everything electrical wide open after a few mins the little battery pops up and if I let it go much longer a whole bunch other lights come on aswell. Then If I turn all that stuff off and rev the engine for a few mins the little battery and all the other lights go away.
What's going on?
#16
#17
RE: Battery Light came on after obdII check
Try checking the voltage of the battery after it has been sitting overnight and see what you get (I assume it had been running recently when you checked it). Then start it up and check the battery voltage again while running. The readings you got make no sense. How old is your battery? Sounds like the alternator though.
#18
RE: Battery Light came on after obdII check
Well I hooked the battery charger up to it last night and set it at 2 amps to give it a good deep charge. I'm gonna start driving it again and if the battery light comes on again I'll get some more voltage readings the way you guys want them. I would like to thank all you guys for this help. Although we are not out of the woods yet.
#19
RE: Battery Light came on after obdII check
Well just charging the battery like the Autozone guy said didn't fix it. So I let it sit all night without the charger on and this morning I got 12.80 before I cranked it and 12.20 after I cranked it. I guess I'm going to buy an alternator against autozones recomendation unless someone on here seems to think it's not a good idea based on my readings this morning.
#20
RE: Battery Light came on after obdII check
Everything I have read in this thread points to a low output from your alternator. It is not able to keep up with the amount of power being pulled off the battery.
I didn't notice something in reading that is not terribly important but wanted to clarify. Spike stated that SRS is you air suspension. He was thinking of SLS. SRS is your airbag system (supplemental restraint system). The airbags do require a certain voltage to operate properly and if your battery drops below that point it will turn on the SRS warning light.
I didn't notice something in reading that is not terribly important but wanted to clarify. Spike stated that SRS is you air suspension. He was thinking of SLS. SRS is your airbag system (supplemental restraint system). The airbags do require a certain voltage to operate properly and if your battery drops below that point it will turn on the SRS warning light.