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dead batterys

T

tammlyn

Active Member
Messages
136
Reaction score
47
Location
timmins ontario canada
my truck was parked for a couple of weeks and the batteries are dead,after recharging them i noticed that the radio stays on and the red battery light is on even with the key removed from the ignition,the interior lights go out as soon as you close the doors so i don't think its a door switch,can it be ign.switch,has anybody ran into this thanks mike
 
That usually is a bad battery. The radio red LED should stay on to indicate the anti theft is armed. Just make sure you replace both.

Sent from my SCH-I535
 
yes i know the light should be on for alarm,this is not the problem the radio is actually on when you shut the truck off and open your door its should shut off but it doesn't shut off at all and the red battery icon in the dash display remains on you can listen to the radio outside the truck i left it sit for a while to see if it would go off but it doesn't thanks mike
 
Disconnect both batteries for at least 30 minutes to allow the BCM to fully reset. Also while both batteries are disconnected, go inside the truck, turn the key on, then go back under the hood, and touch the positive and negative battery cables together. After the 30 minutes, reconnect the batteries and see if the problem still persists. SOmetimes charging the batteries with them hooked up can scramble the BCM and cause many issues. And in some extreme cases, you can fry the BCM from hooking the battery charger up with completely dead batteries. Solid state electronics don't take well to stray A/C current, and with dead batteries the battery charger will give off alot of A/C current bringing them back up.
 
tammlyn said:
yes i know the light should be on for alarm,this is not the problem the radio is actually on when you shut the truck off and open your door its should shut off but it doesn't shut off at all and the red battery icon in the dash display remains on you can listen to the radio outside the truck i left it sit for a while to see if it would go off but it doesn't thanks mike
Click to expand...
Ahh... I didn't catch that part.
 
yes you should never charge the batteries when there on line always try to disconnect them,so my truck has come back from the doctor this morning we where scratching our heads with this one and the problem was found the windshield whipper motor was shorted, the harness coming in was coroted and it caused my dash lights,radio,and battery icon in the dash to stay on and what was weird is the interior lights would go out when you closed the door as there suppose to,we will remember this one thanks mike
 
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