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 Red Battery Dash Light ON!

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charlieRobinson
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PostSubject: Red Battery Dash Light ON!   Sun Jun 07, 2015 11:37 pm

Coincidence or did this weekend's surgery go wrong somehow?

Got the spacer and fuel rails installed. Fired it up and got a red battery light.

While running, volts are 13.7-13.9 with blips of 14. Drove for ~50 miles with the battery light on and the voltage never dropped significantly.

Any ideas?

Gotta find my voltmeter so i can test the battery and the alt, but how do you test the alt?

It seems to start and run fine. I figured if it was the alt the battery would have died by now but its still starting and running fine with volts @ 13.7-13.9 with blips of 14.

dunce dunce dunce please advise!
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matt270avian
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PostSubject: Re: Red Battery Dash Light ON!   Sun Jun 07, 2015 11:48 pm

Did you forget to plug in the sensor wire that goes to the alternator? It's definitely working if you're getting voltage that high.
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charlieRobinson
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PostSubject: Re: Red Battery Dash Light ON!   Sun Jun 07, 2015 11:57 pm

matt270avian wrote:
Did you forget to plug in the sensor wire that goes to the alternator? It's definitely working if you're getting voltage that high.
No. It's plugged in. Wish it would give me a SES light so I can check a code. The red battery light is saying, "you've got an electrical issue. Good luck, see ya!"

son of a...

She's running better than ever before! WTF red battery light?! shout
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matt270avian
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PostSubject: Re: Red Battery Dash Light ON!   Mon Jun 08, 2015 9:16 am

Well I guess it's time to start probing fuses. I'm sure Abaddon or somebody could chime in with some other ideas as well.
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Abaddon
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PostSubject: Re: Red Battery Dash Light ON!   Mon Jun 08, 2015 9:48 am

matt270avian wrote:
I'm sure Abaddon or somebody could chime in with some other ideas as well.


My $.02....

Fix what you broke. EDIT: razz

You should have a code(s) if the light is on. If your "scanner" won't read it, you need someone with a better scanner or a Tech II. The Battery light codes show up in the BCM, not the ECM.
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charlieRobinson
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PostSubject: Re: Red Battery Dash Light ON!   Mon Jun 08, 2015 12:58 pm

Abaddon wrote:

matt270avian wrote:
I'm sure Abaddon or somebody could chime in with some other ideas as well.
My $.02....
Fix what you broke. EDIT: razz
You should have a code(s) if the light is on. If your "scanner" won't read it, you need someone with a better scanner or a Tech II. The Battery light codes show up in the BCM, not the ECM.

Dang. Advance said they couldnt scan it. HPT doesnt show anything for it.

Advance ran their diagnostic whatever on my battery and alt. Test came back good to go.

Riv starts up perfect and runs fine with everything turned on high. But the red light wont go away.

Do I need to take it to a garage to scan? wtffff
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matt270avian
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PostSubject: Re: Red Battery Dash Light ON!   Mon Jun 08, 2015 12:59 pm

What if you just disconnect the battery for an hour or so?
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charlieRobinson
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PostSubject: Re: Red Battery Dash Light ON!   Mon Jun 08, 2015 1:07 pm

matt270avian wrote:
What if you just disconnect the battery for an hour or so?




Yes. that was my next plan of action.

I actually just found my socket wrench for the battery in the back seat so I will go do that now and check it later before I leave work.

the battery light turns on about 5-10 seconds after the car is started. shout

Gonna start tracing lines and cleaning connections when I get home.

At least she starts and runs. bow Sucks not having a ride

Where is the voltage regulator located? dunce
When we scan for volts, is that reading from the alternator? dunce

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Abaddon
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PostSubject: Re: Red Battery Dash Light ON!   Mon Jun 08, 2015 3:32 pm

Here's GM's complete rundown on that light always being on without codes.


Charge Indicator Always On
Charge Indicator Always On Step
Action
Value(s)
Yes
No

1
Did you perform the Charging System Check ?

Go to Step 2
Go to Charging System Check

2
 1. Connect a scan tool to the data link connector (DLC).
 2. Turn the ignition switch to RUN.
 3. Start the engine.
 4. Using the scan tool, monitor system voltage.
Is the measured voltage in the specified range?
Greater than 10.6V
Go to Step 3
Go to Battery Is Undercharged or Overcharged

3
 1. Turn the ignition switch to OFF.
 2. Turn the ignition switch to RUN.
Did the charge indicator turn on, then turn off after the normal bulb check?

Go to Step 4
Go to Step 11

4
Is the vehicle a Buick?

Go to Step 13
Go to Step 5

5
 1. Turn the ignition switch to RUN.
 2. Start the engine and keep the engine running at fast idle.
 3. Disconnect the battery thermistor connector, located near the battery.
 4. Using a J 39200 digital multimeter (DMM) set to DC volts scale, measure the voltage across the battery terminals.
Is the measured voltage in the specified range?
1316V
Go to Step 10
Go to Step 11

6
 1. Turn the ignition switch to OFF.
 2. Using a DMM set to DC volts scale, measure the voltage at battery thermistor connector terminal A (body harness side).
Is the measured voltage in the specified range?
1015V
Go to Step 8
Go to Step 7

7
 1. Check the BATT THER fuse for an open.
 2. If the fuse is open, repair CKT 540 (ORN) short to ground.
 3. If the fuse is OK, repair open or high resistance in CKT 540 (ORN).
Is the repair complete?

Go to Step 18


8
 1. Disconnect the generator connector.
 2. Connect a fused jumper from generator harness connector terminal S to ground.
 3. Connect a DMM set to ohms scale between the battery thermistor connector terminal B (body harness side) and ground.
Is the measured resistance in the specified range?
Less than 5Ω
Go to Step 10
Go to Step 9

9
Repair high resistance or open in CKT 725 (LT BLU).

Is the repair complete?

Go to Step 18


10
 1. Check the battery thermistor connector for poor terminal contact.
 2. If OK, replace the battery thermistor.
Is the repair complete?

Go to Step 18


11
 1. Turn the ignition switch to LOCK.
 2. Disconnect the powertrain control module (PCM) connector C2.
 3. Turn the ignition switch to RUN.
Did the charge indicator remain on after the normal bulb check?

Go to Step 12
Go to Step 13

12
Replace the instrument cluster. Refer to Instrument Cluster Replacement in Instrument Panel, Gauges and Console.

Is the repair complete?

Go to Step 18


13
Check CKT 225 (RED) for an open or short to ground.

Is the circuit OK?

Go to Step 15
Go to Step 14

14
Repair the open or short to ground on CKT 225 (RED).

Is the repair complete?

Go to Step 18


15
Check CKT 23 (GRY) for an open or short to ground.

Is the circuit OK?

Go to Step 17
Go to Step 16

16
Repair the open or short to ground on CKT 23 (GRY).

Is the repair complete?

Go to Step 18


17
 1. Check the powertrain control module (PCM) connectors for poor terminal contact.
 2. If OK, replace the PCM. Refer to Powertrain Control Module Replacement/Programming in Engine Controls.
Is the repair complete?

Go to Step 18


18
 1. Make sure any components removed during diagnosis are installed in place and that all connectors are connected.
 2. Repeat the system check. Refer to Charging System Check.
Is the system check complete?
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charlieRobinson
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PostSubject: Re: Red Battery Dash Light ON!   Mon Jun 08, 2015 3:41 pm

God bless you, Mr. Scott.

I will go through this as soon as I get home.
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Abaddon
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PostSubject: Re: Red Battery Dash Light ON!   Mon Jun 08, 2015 5:16 pm

I'll have to go and find the circuits they talk about for you. I'll edit this post when I find them.
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charlieRobinson
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PostSubject: Re: Red Battery Dash Light ON!   Mon Jun 08, 2015 6:25 pm

Thanks for your help, Scott.

I got home and did troubleshooting 101 aka checked the fuse box.

It was a blown battery thermistor fuse because I am an idiot.

Lesson here is, when you take your amp out and youre dumb like me and leave the power cable attached to the battery and it hits the metal in your trunk, you're gonna blow a fuse.

Sorry for wasting everyone's time.

I am going to make a new thread for the next idiotic issue I cant seem to figure out... stay 'tuned'
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KnottyEagle
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PostSubject: Re: Red Battery Dash Light ON!   Mon Jun 08, 2015 8:25 pm

Whenever I see "charlieRobinson" make a new post/thread, I always think "what is it this time?!"

happy wink
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charlieRobinson
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PostSubject: Re: Red Battery Dash Light ON!   Mon Jun 08, 2015 9:26 pm

KnottyEagle wrote:
Whenever I see "charlieRobinson" make a new post/thread, I always think "what is it this time?!"

happy wink


hey, I'm here to entertain joker

and piss that reuben guy off, evidently..
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