follow ft86club on our blog, twitter or facebook.
FT86CLUB
Ft86Club
Speed By Design
Register Garage Members List Calendar Search Today's Posts Mark Forums Read

Go Back   Toyota GR86, 86, FR-S and Subaru BRZ Forum - FT86CLUB > Technical Topics > Issues | Warranty | Recalls / TSB

Issues | Warranty | Recalls / TSB Problems, issues, recalls, TSBs


User Tag List

Reply
 
Thread Tools Search this Thread
Old 10-05-2020, 10:26 PM   #1
ShadowReaper
Indulgent Tormenter
 
ShadowReaper's Avatar
 
Join Date: Dec 2015
Drives: 15' LTD Subaru BRZ DGM
Location: FL
Posts: 480
Thanks: 307
Thanked 124 Times in 87 Posts
Mentioned: 3 Post(s)
Tagged: 2 Thread(s)
Headlights Don't Turn on (Out at the Same Time)

What I have checked already (All Good):
- Fuses for Low/High Beam (Check w/ Multimeter (Ohms) and Visually inspected)
- Relay for Headlights (Makes Clicking sound and Switch them with the fog lights)
- Battery Voltage
- Light Bulbs (HIDs) (They have a very small cloud inside but it's not big enough to indicate that it's blown. Auto Zone and NAPA agree)
- Alternate 105 Amp Fuse (Visually)

Previous Modification:
-I recently blacked out the inside of the headlight housing. I had zero issues after, as I checked all lights right after install and they all turned on.

Previous Problems:
- I had a moderate amount of corrosion on the Negative terminal of the battery and the terminal end.

With that being said, questions:
- Could a bad terminal be the reason why my headlights don't turn on? I cleaned 95% of the corrosion off with a wire wheel. Could some corrosion in that module that's part of the terminal end be the problem?

- Could it be a reverse polarity issue? I'm sure with how modern the BRZ is, there is reverse-polarity protection but I also know that it isn't always 100% effective. I have noticed NAV system gets no signal, at least when I'm in the garage haven't checked outside of that. Also, key-less entry has failed about 3 times in the last month.
EDIT: Key-less entry and NAV system are fine, I was just paranoid

Haven't Checked:

Ballast - I really doubt it would be a ballast because they went out at the same time, also didn't notice any damage inside.

Wiring Harness - I do not notice any damage to the wiring harness, I will probably have a mechanic test this at that point.
EDIT: It appears I am getting voltage to the headlight connectors, wiring up to that point is fine.

Headlight Switch - Really doubt this would be the problem, all the other features work fine.

I'm literally about to give in and get an electrical diagnostic. If I end up ordering the new Battery Terminal end w/ module, that may be my last straw. As I don't know how to deal or check with reverse polarity.

(FINAL EDIT) PROBLEM SOLVED: The problem was a loose connector from the headlight wiring into the Ballast.
__________________

Instagram: 86_Maul

Last edited by ShadowReaper; 10-10-2020 at 11:15 PM.
ShadowReaper is offline   Reply With Quote
Old 10-06-2020, 07:56 AM   #2
BigTuna
Senior Member
 
BigTuna's Avatar
 
Join Date: Jun 2015
Drives: 2013 WRB BRZ
Location: Ohio
Posts: 614
Thanks: 218
Thanked 428 Times in 246 Posts
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Do you have a multimeter? You could see if there is any power at the headlight connector and start working backwards based on results.
__________________
BigTuna is offline   Reply With Quote
The Following User Says Thank You to BigTuna For This Useful Post:
Tcoat (10-06-2020)
Old 10-06-2020, 11:21 AM   #3
ShadowReaper
Indulgent Tormenter
 
ShadowReaper's Avatar
 
Join Date: Dec 2015
Drives: 15' LTD Subaru BRZ DGM
Location: FL
Posts: 480
Thanks: 307
Thanked 124 Times in 87 Posts
Mentioned: 3 Post(s)
Tagged: 2 Thread(s)
Quote:
Originally Posted by BigTuna View Post
Do you have a multimeter? You could see if there is any power at the headlight connector and start working backwards based on results.
I do. That's how I tested the battery voltage and the fuses. Are you talking about the Igniter/Ballast that connects directly behind the bulb? I have no clue how to test that piece.
__________________

Instagram: 86_Maul
ShadowReaper is offline   Reply With Quote
Old 10-06-2020, 12:44 PM   #4
Grady
Senior Member
 
Grady's Avatar
 
Join Date: Jun 2017
Drives: BRZ Yellow, 2019 Ranger
Location: Dallas
Posts: 1,161
Thanks: 253
Thanked 897 Times in 497 Posts
Mentioned: 7 Post(s)
Tagged: 1 Thread(s)
Garage
So you have voltage at the headlight connectors?
If that is the case then yes your HID’s are shot. Most car manufactures build in reverse polarity protection. This probably saved the car. Cheep add on electronics usually do not.
Grady is offline   Reply With Quote
The Following User Says Thank You to Grady For This Useful Post:
Tcoat (10-06-2020)
Old 10-06-2020, 01:11 PM   #5
Tcoat
He who smelt it...
 
Tcoat's Avatar
 
Join Date: Jul 2014
Drives: 2020 Hakone
Location: London, Ont
Posts: 64,804
Thanks: 57,538
Thanked 97,245 Times in 42,357 Posts
Mentioned: 2340 Post(s)
Tagged: 50 Thread(s)
Quote:
Originally Posted by Grady View Post
So you have voltage at the headlight connectors?
If that is the case then yes your HIDís are shot. Most car manufactures build in reverse polarity protection. This probably saved the car. Cheep add on electronics usually do not.
This ^
It has been seen here before. Just be glad it didn't take the BCM out with them!
__________________
Racecar spelled backwards is Racecar, because Racecar.
Tcoat is offline   Reply With Quote
The Following 2 Users Say Thank You to Tcoat For This Useful Post:
Grady (10-07-2020), ShadowReaper (10-06-2020)
Old 10-06-2020, 01:12 PM   #6
BigTuna
Senior Member
 
BigTuna's Avatar
 
Join Date: Jun 2015
Drives: 2013 WRB BRZ
Location: Ohio
Posts: 614
Thanks: 218
Thanked 428 Times in 246 Posts
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quote:
Originally Posted by ShadowReaper View Post
I do. That's how I tested the battery voltage and the fuses. Are you talking about the Igniter/Ballast that connects directly behind the bulb? I have no clue how to test that piece.
Quote:
Originally Posted by Grady View Post
So you have voltage at the headlight connectors?
If that is the case then yes your HIDís are shot. Most car manufactures build in reverse polarity protection. This probably saved the car. Cheep add on electronics usually do not.
This is what I meant. Can you or have you measured the voltage at the connectors when the headlights are in the on position?
__________________
BigTuna is offline   Reply With Quote
The Following User Says Thank You to BigTuna For This Useful Post:
ShadowReaper (10-06-2020)
Old 10-07-2020, 10:11 AM   #7
ShadowReaper
Indulgent Tormenter
 
ShadowReaper's Avatar
 
Join Date: Dec 2015
Drives: 15' LTD Subaru BRZ DGM
Location: FL
Posts: 480
Thanks: 307
Thanked 124 Times in 87 Posts
Mentioned: 3 Post(s)
Tagged: 2 Thread(s)
Quote:
Originally Posted by BigTuna View Post
Do you have a multimeter? You could see if there is any power at the headlight connector and start working backwards based on results.
Quote:
Originally Posted by Grady View Post
So you have voltage at the headlight connectors?
If that is the case then yes your HIDís are shot.
Quote:
Originally Posted by Tcoat View Post
This ^
Is this the "connector" you guys are talking about?

__________________

Instagram: 86_Maul
ShadowReaper is offline   Reply With Quote
Old 10-07-2020, 02:37 PM   #8
Grady
Senior Member
 
Grady's Avatar
 
Join Date: Jun 2017
Drives: BRZ Yellow, 2019 Ranger
Location: Dallas
Posts: 1,161
Thanks: 253
Thanked 897 Times in 497 Posts
Mentioned: 7 Post(s)
Tagged: 1 Thread(s)
Garage
Quote:
Originally Posted by ShadowReaper View Post
Is this the "connector" you guys are talking about?

We are talking about the connector on the cars wire harness it will be 12v. The connector out of the power supply that connects to the HID lamp is high voltage donít mess with that one.
Grady is offline   Reply With Quote
The Following User Says Thank You to Grady For This Useful Post:
Tcoat (10-07-2020)
Old 10-07-2020, 02:54 PM   #9
Tcoat
He who smelt it...
 
Tcoat's Avatar
 
Join Date: Jul 2014
Drives: 2020 Hakone
Location: London, Ont
Posts: 64,804
Thanks: 57,538
Thanked 97,245 Times in 42,357 Posts
Mentioned: 2340 Post(s)
Tagged: 50 Thread(s)
Quote:
Originally Posted by Grady View Post
We are talking about the connector on the cars wire harness it will be 12v. The connector out of the power supply that connects to the HID lamp is high voltage donít mess with that one.
Will wake you up in a hurry!
__________________
Racecar spelled backwards is Racecar, because Racecar.
Tcoat is offline   Reply With Quote
The Following 2 Users Say Thank You to Tcoat For This Useful Post:
Grady (10-07-2020), ShadowReaper (10-07-2020)
Old 10-07-2020, 03:04 PM   #10
ShadowReaper
Indulgent Tormenter
 
ShadowReaper's Avatar
 
Join Date: Dec 2015
Drives: 15' LTD Subaru BRZ DGM
Location: FL
Posts: 480
Thanks: 307
Thanked 124 Times in 87 Posts
Mentioned: 3 Post(s)
Tagged: 2 Thread(s)
Quote:
Originally Posted by Tcoat View Post
Will wake you up in a hurry!
LOL

Quote:
Originally Posted by Grady View Post
We are talking about the connector on the cars wire harness it will be 12v. The connector out of the power supply that connects to the HID lamp is high voltage donít mess with that one.
Bear with me guys. These connectors? Should I get an Ohm reading or Voltage? While the car is off yes?
Attached Images
 
__________________

Instagram: 86_Maul
ShadowReaper is offline   Reply With Quote
Old 10-07-2020, 03:17 PM   #11
Tcoat
He who smelt it...
 
Tcoat's Avatar
 
Join Date: Jul 2014
Drives: 2020 Hakone
Location: London, Ont
Posts: 64,804
Thanks: 57,538
Thanked 97,245 Times in 42,357 Posts
Mentioned: 2340 Post(s)
Tagged: 50 Thread(s)
Quote:
Originally Posted by ShadowReaper View Post
LOL



Bear with me guys. These connectors? Should I get an Ohm reading or Voltage? While the car is off yes?
You are looking for 12 volts from the harness. If it is there you at least have base power going to the ballasts.
__________________
Racecar spelled backwards is Racecar, because Racecar.
Tcoat is offline   Reply With Quote
Old 10-08-2020, 09:06 PM   #12
ShadowReaper
Indulgent Tormenter
 
ShadowReaper's Avatar
 
Join Date: Dec 2015
Drives: 15' LTD Subaru BRZ DGM
Location: FL
Posts: 480
Thanks: 307
Thanked 124 Times in 87 Posts
Mentioned: 3 Post(s)
Tagged: 2 Thread(s)
Quote:
Originally Posted by Tcoat View Post
You are looking for 12 volts from the harness. If it is there you at least have base power going to the ballasts.
Quote:
Originally Posted by Grady View Post
So you have voltage at the headlight connectors?.
Ok folks, I got a voltage read from the connectors driver/passenger side, measure in 20V to Ground, on the screws near the strut. These were tested on Accessory mode and I even turned the headlight switch on.

If I'm not mistaken, the wires to both headlights is the slightly thicker ones out of all the ones that go up to the connector right? If so,

Passenger Side (RED) wire reads: 12.35v
Driver Side (Light BLUE) wire reads: 12.30v

As far as I understand it, I will be buying bulbs and hopefully not ballasts!
EDIT: I will be inspecting the ballast tomorrow to see any signs of water damage or frying. If I do not see any signs, I will go through the "trial by error" method of buying a bulb.
__________________

Instagram: 86_Maul

Last edited by ShadowReaper; 10-10-2020 at 09:55 PM.
ShadowReaper is offline   Reply With Quote
Old 10-10-2020, 11:01 PM   #13
ShadowReaper
Indulgent Tormenter
 
ShadowReaper's Avatar
 
Join Date: Dec 2015
Drives: 15' LTD Subaru BRZ DGM
Location: FL
Posts: 480
Thanks: 307
Thanked 124 Times in 87 Posts
Mentioned: 3 Post(s)
Tagged: 2 Thread(s)
Headlights are back on...

CULPRIT: Loose connection

The connection shown below was not tight, and the other was practically disconnected. Must have tugged it when re-assembling this.

Honestly not even mad, now I know how to diagnose this sort of stuff better and no extra money spent.

Thanks for your suggestions and tips guys.

Quote:
Originally Posted by Tcoat View Post
...
Quote:
Originally Posted by BigTuna View Post
...
Quote:
Originally Posted by Grady View Post
....
Attached Images
 
__________________

Instagram: 86_Maul
ShadowReaper is offline   Reply With Quote
The Following 2 Users Say Thank You to ShadowReaper For This Useful Post:
BigTuna (10-12-2020), Tcoat (10-10-2020)
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Open Flash Custom E-Tune turn around time JRSMYD Software Tuning 10 04-18-2019 04:48 PM
Winjet headlights cause the LED fog lights to turn off Paul_541 Cosmetic Modification (Interior/Exterior/Lighting) 0 03-21-2017 12:34 AM
Painted FRS Headlights and turn signals Flako Exterior Parts (Aero, Lighting, Etc.) 22 01-31-2016 10:32 AM
Keyless lock not turn off headlights bleakhand Issues | Warranty | Recalls / TSB 4 12-18-2013 05:04 AM
is it ok to turn the AC on and off all the time? chenshuo BRZ First-Gen (2012+) -- General Topics 13 08-18-2013 12:45 AM


All times are GMT -4. The time now is 11:56 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
User Alert System provided by Advanced User Tagging v3.3.0 (Lite) - vBulletin Mods & Addons Copyright © 2021 DragonByte Technologies Ltd.

Garage vBulletin Plugins by Drive Thru Online, Inc.