Recently, I purchased an 03 silverado 2500, and have continued to have
issues with the battery light. The battery light remains dimly lit at
all times when the truck is on and when the truck is off. The battery
was replaced when I bought the truck.
History of repairs (less than 2 months)
Battery was replaced when truck was purchased
Light came on, remained dimly lit. Brought to dealership who scanned
vehicle - light turned off after scan
About 5 days later light came back on, after a few days altenator
went. Altenator replaced by dealership
Yesterday (4/17/07) the light came back on again.
I am looking for any help on this issue, since the dealership has not
provided me with any. Please note that the truck is still covered
under warranty so any ideas would be greatly appreciated.
If battery load tests OK and alternator output is in the normal
13.5~14.5 volt range, it could be in the warning light circuit, such as
the wire to the idiot light, or the idiot light's protective resistor.
It could be a number of things. He was working with a dealership and ,
is invested in this approach, should go back and try to communicate with
as you suggest.
Some problems AREN'T easily fixed, that is for sure.
Give them a fair shot at it before taking it to another shop or small claims
I have been talking to the dealership, the entire time. They are aware
of the problem, and are going to try to fix it. I was simply looking
for any ideas since the dealership seems to have no idea why the light
I have seen some cases where the light appears to be glowing dimly, but
Light is getting to the 'jewel' lens some other way.
But assuming it is glowing, your point, Woody, of tracing it down via the
diagram is right on.
In the past, I had a lot of problems with diode trios in some alternators.
things have to be well matched, or balanced, or you will get a glowing
light. The more unbalanced they become, the more the glow. Unlike some
semiconductor items which usually either work or dont work, diode trios can
off spec, causing the false indication.
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