Recent content by drallan

I know this is an old thread, but any solution? I'm chasing the same light. 2 alternators, new battery, checked / cleaned every ground, terminal and wire I can find.

I know this is an old thread. Did you ever find what was causing the light? Having a similar problem. Checked, cleaned, replaced everything I can think of and can't get the darn light to go out. About the only thing I haven't done is the starter grounds. I have a v8 and not looking forward to...

There are a couple of other alternator plug threads so I'll continue over there, but my plug only has 3 wires, not the 4th lower right ECU wire. So when I get a chance I'll try to figure out which one feeds the ECU. Hardest part is access to the alternator side of the plug while the engine is...

Honest question. Is it preferred on this forum to only post back after finding a solution, or throughout the diagnosis? I don't post often as I've had minimal issues that require a post, but personally get frustrated by the questions with no resolution. So I thought walking through my process...

I don't disagree alternator could be going bad. My understanding of electronics is limited. My go to cliche is enough to be dangerous and not enough to be useful. As I stated in a few of my replies, I'm open to the idea that my assumptions have been wrong the whole time. Initially I was trying...

You know what, I never considered that the alternator wasn't producing the correct current, just assumed that if the voltage was good the alternator was good. But checking the amps its putting out is a good idea. That could be the issue. Thanks for the suggestion. I don't have a designated...

Thank you, that worked! Had some super cold weather hear in Maryland and I don't have a garage so it has been slow going. Good news is runner has been working, got a different OBD reader (non-Bluetooth) and it is showing same voltage as I'm reading with the multi-meter, Mid-13s+. On top of that...

I was never able to get the last 2 uploads to download / open properly.

Did yours have 3 or 4 wires on the plug? Currently troubleshooting some electrical issues in another thread. Showing 13.6+v but battery light keeps popping up (no problems starting or keeping battery charged), but my alternator plug only has 3 wires coming out of it. Seeing conflicting diagrams...

Thanks, I'm just trying to figure out where to take that reading from. All of my readings have been during idle, but I'm not sure where to take the reading. I thought the big red positive cable at the battery was connected to the alternator, so I've been touching some exposed wire on the...

Understand, it probably is time for a new alternator, but in the mid 13s it is still working good enough that it shouldn't be throwing the "Battery" light, and doesn't explain the discrepancy I see at the cigarette lighter and battery itself from the OBDII readout and apparently what the ECU...

Awesome. Thank you!

2004 v8 225k Does anyone have a wiring diagram, picture or description of where the ECU gets the system voltage from? OBD2 shows about 12.4-8V consistently on Torque and get the little battery dash light for over 2 months. I have a cigarette lighter USB charger that constant reads 13.4-6v...

I had similar issue on my 04 for a while. Eventually swapped out motor with an Ebay unit and haven't had issues since. Its a really easy swap. Mine was inconsistent as well, seemed to work after disconnecting battery or if I pressed on the hatch. Sometimes it wouldn't latch, others it wouldn't...

Yes, thank you. I have checked and cleaned the grounds I can find, but is there a diagram or list of grounds that may not be obvious? I've done all the ones I can see around the battery box, top of engine / manifold and alternator. I can't seem to find where the big block ground is, there is a...