alternator/charging issues - SRT Forums

1st gen srt · 11-02-2010, 01:10 AM

so i replaced my alternator cause my old one was bad. It is still not charging the battery. I have double checked the connections to the alternator and all the grounds "battery included". I replaced my starter a couple months ago and everything works fine with that but i dont remember there being a big ground connected to it. but i was tracing wires and grounds and i found a ground that is underneath the intake manifold. Does it connect to the starter? I need help i cant figure this out. Does anyone have a wiring diagram? any help would be much appreciated. Thanks

NorthNJSRT4 · 11-02-2010, 06:13 AM

All of the wiring diagrams are in the service manual linked below in my sig.

1st gen srt · 11-14-2010, 10:43 AM

so come to figure out that ground was the power coming from the alternator...however its still not charging the battery...I am at a loss i have been trying everything and have no clue what it could be...any suggestions? There is the power wire that comes off the alternator to the starter...Check....then there is the two prong connector that plugs in to the alternator check....I have no clue what is going on..any ideas? Please I am tired of not being able to drive my baby. By the way it is a 03 if that matters

NorthNJSRT4 · 11-14-2010, 11:37 AM

Having them switched may have damaged the PCM, which is where the voltage regulator for the alternator is located. Remove the PCM connectors and see if the pins on the PCM are scorched.

1st gen srt · 11-14-2010, 11:41 AM

good point do you know which pins they are color code on the pcm connector so i dont have to refrence it int the service manual?

_Nick_ · 11-14-2010, 12:27 PM

You may have ruined the battery. Get it tested after?

1st gen srt · 11-14-2010, 12:32 PM

Quote: Originally Posted by 03RedSRT4

You may have ruined the battery. Get it tested after?

ya but the car should still be putting out 13+ volts. its only putting out 11.56 when i tested it at the battery and at the starter and fuse box...I could try a new battery but i dont think that is the issue. I tested the battery when the car is off and key off and it was putting out 12.04 volts and was not dropping.

_Nick_ · 11-14-2010, 12:40 PM

I say get it tested at a store like Autozone. My battery was putting out 12 volts, and even passed the test where the coil heats up in the hand held test thing. (Old ass technology) Autozone showed me it wasn't accepting a charge like it should, but it was releasing power fine.

I see you are in Germany, maybe they have the German Autozone there, "Achtun-o-zone."

1st gen srt · 11-14-2010, 12:43 PM

well i wish i could get it tested at autozone lol...however i am in germany lol oh well. If i am not mistaken if the cars alternator is fine shouldnt you be able to pull the battery cables off the battery and it would still run? cause if it is true i tried it and it stalled.....

_Nick_ · 11-14-2010, 12:45 PM

You are correct. It should run for a while. Hm????

NorthNJSRT4 · 11-14-2010, 12:57 PM

I vote PCM.

Service manual pages 572 and 573. On the PCM it's connector #2, pin 19 and connector #1 pin 29.

Of note, the battery temp sensor or ambient air temp sensor (depending on year of the car) also play a role in the voltage out the PCM decides on.

1st gen srt · 11-15-2010, 09:24 AM

Quote: Originally Posted by NorthNJSRT4

I vote PCM.

Service manual pages 572 and 573. On the PCM it's connector #2, pin 19 and connector #1 pin 29.

Of note, the battery temp sensor or ambient air temp sensor (depending on year of the car) also play a role in the voltage out the PCM decides on.

thanks i really appreciate it. going to have to find a used pcm i guess and have it reflashed...i will look at those pins tomorrow hopefully they are good. If not guess i found the source. Its raining like hell right now. wish i could work on my car but I cant

DoodEdge · 11-15-2010, 12:58 PM

Quote: Originally Posted by 1st gen srt

well i wish i could get it tested at autozone lol...however i am in germany lol oh well. If i am not mistaken if the cars alternator is fine shouldnt you be able to pull the battery cables off the battery and it would still run? cause if it is true i tried it and it stalled.....

Yeah, if the alternators good once it's running you can disconnect the battery. If it stalled when you did that there is def an alternator problem.

Snyphor24 · 01-28-2013, 11:54 AM

Hey I thought i'd just post this to help others in the future.

I had my charge wire chaffing against my dump at first.

so I fixed that and wouldn't get a charge to battery still. I did some more digging and found the same charge wire at the starter had burned through as well.

11-02-2010, 01:10 AM	#1 (permalink)
1st gen srt SRTforums Member Join Date: Jun 2008 Member Number: 64479 Location: Upstate NY Posts: 383	alternator/charging issues so i replaced my alternator cause my old one was bad. It is still not charging the battery. I have double checked the connections to the alternator and all the grounds "battery included". I replaced my starter a couple months ago and everything works fine with that but i dont remember there being a big ground connected to it. but i was tracing wires and grounds and i found a ground that is underneath the intake manifold. Does it connect to the starter? I need help i cant figure this out. Does anyone have a wiring diagram? any help would be much appreciated. Thanks

11-02-2010, 06:13 AM	#2 (permalink)
NorthNJSRT4 Merderates da formz Join Date: Sep 2007 Member Number: 57126 Location: Hotlanta Posts: 13,647	All of the wiring diagrams are in the service manual linked below in my sig. __________________ Technical Moderator and Meth Addict Performance Modifications and Upgrade Paths Vacuum Line Setups All DSport\DSP Stickies Are Here What Parameters to Datalog (DSP) How-To: Rewire Fuel Pump How-To: Non-Fouler Mod SRT-4 / Neon Service Manuals

11-14-2010, 11:37 AM	#4 (permalink)
NorthNJSRT4 Merderates da formz Join Date: Sep 2007 Member Number: 57126 Location: Hotlanta Posts: 13,647	Having them switched may have damaged the PCM, which is where the voltage regulator for the alternator is located. Remove the PCM connectors and see if the pins on the PCM are scorched. __________________ Technical Moderator and Meth Addict Performance Modifications and Upgrade Paths Vacuum Line Setups All DSport\DSP Stickies Are Here What Parameters to Datalog (DSP) How-To: Rewire Fuel Pump How-To: Non-Fouler Mod SRT-4 / Neon Service Manuals

11-14-2010, 12:27 PM	#6 (permalink)
_Nick_ Premium Member Join Date: Mar 2004 Member Number: 8941 Location: Camarillo, CA Posts: 7,097	You may have ruined the battery. Get it tested after? __________________ 20G Stage 3 on E85: New data:384 hp 411 tq "Maybe I should just stick to bolt-ons." -Hitler I don't really want to wrench anymore. I'd rather detail.

11-14-2010, 12:40 PM	#8 (permalink)
_Nick_ Premium Member Join Date: Mar 2004 Member Number: 8941 Location: Camarillo, CA Posts: 7,097	I say get it tested at a store like Autozone. My battery was putting out 12 volts, and even passed the test where the coil heats up in the hand held test thing. (Old ass technology) Autozone showed me it wasn't accepting a charge like it should, but it was releasing power fine. I see you are in Germany, maybe they have the German Autozone there, "Achtun-o-zone." __________________ 20G Stage 3 on E85: New data:384 hp 411 tq "Maybe I should just stick to bolt-ons." -Hitler I don't really want to wrench anymore. I'd rather detail.

11-14-2010, 10:43 AM	#3 (permalink)
1st gen srt SRTforums Member Join Date: Jun 2008 Member Number: 64479 Location: Upstate NY Posts: 383	so come to figure out that ground was the power coming from the alternator...however its still not charging the battery...I am at a loss i have been trying everything and have no clue what it could be...any suggestions? There is the power wire that comes off the alternator to the starter...Check....then there is the two prong connector that plugs in to the alternator check....I have no clue what is going on..any ideas? Please I am tired of not being able to drive my baby. By the way it is a 03 if that matters

11-14-2010, 11:41 AM	#5 (permalink)
1st gen srt SRTforums Member Join Date: Jun 2008 Member Number: 64479 Location: Upstate NY Posts: 383	good point do you know which pins they are color code on the pcm connector so i dont have to refrence it int the service manual?

11-14-2010, 12:32 PM	#7 (permalink)
1st gen srt SRTforums Member Join Date: Jun 2008 Member Number: 64479 Location: Upstate NY Posts: 383	Quote: Originally Posted by 03RedSRT4 You may have ruined the battery. Get it tested after? ya but the car should still be putting out 13+ volts. its only putting out 11.56 when i tested it at the battery and at the starter and fuse box...I could try a new battery but i dont think that is the issue. I tested the battery when the car is off and key off and it was putting out 12.04 volts and was not dropping.

11-14-2010, 12:43 PM	#9 (permalink)
1st gen srt SRTforums Member Join Date: Jun 2008 Member Number: 64479 Location: Upstate NY Posts: 383	well i wish i could get it tested at autozone lol...however i am in germany lol oh well. If i am not mistaken if the cars alternator is fine shouldnt you be able to pull the battery cables off the battery and it would still run? cause if it is true i tried it and it stalled.....

11-14-2010, 12:45 PM	#10 (permalink)
_Nick_ Premium Member Join Date: Mar 2004 Member Number: 8941 Location: Camarillo, CA Posts: 7,097	You are correct. It should run for a while. Hm???? __________________ 20G Stage 3 on E85: New data:384 hp 411 tq "Maybe I should just stick to bolt-ons." -Hitler I don't really want to wrench anymore. I'd rather detail.

11-14-2010, 12:57 PM	#11 (permalink)
NorthNJSRT4 Merderates da formz Join Date: Sep 2007 Member Number: 57126 Location: Hotlanta Posts: 13,647	I vote PCM. Service manual pages 572 and 573. On the PCM it's connector #2, pin 19 and connector #1 pin 29. Of note, the battery temp sensor or ambient air temp sensor (depending on year of the car) also play a role in the voltage out the PCM decides on. __________________ Technical Moderator and Meth Addict Performance Modifications and Upgrade Paths Vacuum Line Setups All DSport\DSP Stickies Are Here What Parameters to Datalog (DSP) How-To: Rewire Fuel Pump How-To: Non-Fouler Mod SRT-4 / Neon Service Manuals Last edited by NorthNJSRT4; 11-14-2010 at 01:10 PM.

11-15-2010, 09:24 AM	#12 (permalink)
1st gen srt SRTforums Member Join Date: Jun 2008 Member Number: 64479 Location: Upstate NY Posts: 383	Quote: Originally Posted by NorthNJSRT4 I vote PCM. Service manual pages 572 and 573. On the PCM it's connector #2, pin 19 and connector #1 pin 29. Of note, the battery temp sensor or ambient air temp sensor (depending on year of the car) also play a role in the voltage out the PCM decides on. thanks i really appreciate it. going to have to find a used pcm i guess and have it reflashed...i will look at those pins tomorrow hopefully they are good. If not guess i found the source. Its raining like hell right now. wish i could work on my car but I cant

11-15-2010, 12:58 PM	#13 (permalink)
DoodEdge SRTforums Member Join Date: Nov 2008 Member Number: 69186 Location: Charleston, SC Posts: 840	Quote: Originally Posted by 1st gen srt well i wish i could get it tested at autozone lol...however i am in germany lol oh well. If i am not mistaken if the cars alternator is fine shouldnt you be able to pull the battery cables off the battery and it would still run? cause if it is true i tried it and it stalled..... Yeah, if the alternators good once it's running you can disconnect the battery. If it stalled when you did that there is def an alternator problem. __________________

01-28-2013, 11:54 AM	#14 (permalink)
Snyphor24 SRTforums Member Join Date: Dec 2008 Member Number: 69906 Location: Tampa, FL Posts: 165	found somethin Hey I thought i'd just post this to help others in the future. I had my charge wire chaffing against my dump at first. so I fixed that and wouldn't get a charge to battery still. I did some more digging and found the same charge wire at the starter had burned through as well. __________________ My ride AKA "DUCES"

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