|
02-09-2016, 04:44 PM | #1 |
Drives: 2013 Toyota Yaris Join Date: Feb 2016
Location: Peoria, Illinois
Posts: 2
|
Alternator Wiring Harness
Hello,
My battery light is showing on my dash indicator and the Toyota dealership is saying that their test came back showing that I have no charging amperage coming from my alternator to my battery. My alternator is stock but brand new. I personally think there is a problem with voltage going to the alternator through the alternator harness and not telling the alternator to turn on or to charge the battery. Could someone please tell me what each of the 4 wires does that are leading into the harness? I want to test each one with a micrometer but don't want to go probing around on wires I don't need to mess with. I think there is a Yellow/black stripe, black, green, and a blue. |
02-09-2016, 05:37 PM | #2 |
Drives: 2007 Join Date: Feb 2014
Location: motown
Posts: 339
|
Check the horn fuse under the hood, that will throw the battery symbol.
|
02-09-2016, 07:53 PM | #3 | |
ULTIMATE
Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008
Location: USA, CT
Posts: 13,460
|
Quote:
On the 4 pin alternator connector: White: Feedback via the ALT-S fuse (check that fuse) Green: Ignition switched power (via the 10A Gauge fuse - check that too) Blue: Charging indicator output (should be +12 volts with alt running) Pink: Output to AC and ECM to let them know alt is working Also, check the two large fusible links built into the positive battery terminal. It is easy to short the wire from the battery to the alternator when changing the alternator and doing so will pop one of these.
__________________
|
|
02-11-2016, 02:10 PM | #4 |
Drives: 2013 Toyota Yaris Join Date: Feb 2016
Location: Peoria, Illinois
Posts: 2
|
Alternator light
I checked the fuses and they look good. The wiring harness itself looks bad from the car. Looking somewhere to buy a replacement
|
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
DIY (08' USDM Liftback): ESUSE Fog Light Install v2.0 | goku87 | DIY / Maintenance / Service | 127 | 02-19-2023 07:01 PM |
ECU Extension Harness??? | KTS | Performance Modifications | 13 | 06-26-2014 10:03 AM |
For Sale: AEM F/IC (FIC) 30-1910 with Boomslang Harness $400 | CTScott | Items for Sale by private party | 5 | 12-03-2013 06:07 AM |
FS: Zage Turbo kit, AEM FIC with Pnp Harness | djgab101 | Items for Sale by private party | 32 | 04-11-2013 10:42 AM |
How exactly does an heavier duty harness work? | IsLNdbOi | Performance Modifications | 5 | 09-26-2006 04:19 AM |