Lexus CT200h Forums banner

1 - 2 of 2 Posts

·
Registered
Joined
·
1 Posts
Discussion Starter #1 (Edited)
I have purchased a lovely 2011 CT200h yes it has got some, ok maybe a lot of history (not in a good way) but i love the car and in a great drive especially in London UK. It was previously a CAT D/Accident Damage and has had front end damage. The problem is that the car should have Xenon/LED headlight and the cowboys who repaired it have put Halogen headlights guessing due to the cost (all this was done before i purchased the car). I have gone through all the wiring and now all the lights including DRL's work correctly as per the Lexus Workshop Manual.

This is now were the problem lies, i have always had a CHECK HEADLIGHT SYSTEM warning on the dashboard when the low beam comes on looking at the wiring diagram the halogen low beam has just two wires + and - where as Xenon/LED low beam has three wires + and - plus a BLACK wire from the MAIN BODY ECU (which is currently not connected to anything) which i am guessing is to do with the canbus system?! If this is the case does anyone know what signal the BLACK wire is expecting to send back to the MAIN BODY ECU. If i put a voltage meter on it i have 12v coming down the BLACK wire, i have tried linking it in with the + wire for the low beam to see if that work but to no avail.

HELP please i just want to get the message off the dash.

Thanks in advance.

Roy
Lexus Workshop Manual.jpg
 

Attachments

·
Registered
Joined
·
1 Posts
Hi Roy.
Were you able to figure it out?
I'm having a similar problem. I purchased a 2014 that had been in a minor front end collision, and one headlight was smashed. As I started to work on the car I noticed signs that it had been previously repaired from a different accident, so the headlight I was replacing wasn't original to the car, and the wiring looked like it had been cut and repaired. I bought a used headlight from eBay and it shipped from Japan, but I didn't think anything of it... When I replaced the headlight I noticed that the LEDs only worked when the headlights are in the on position, or in the auto position at night but not during the day...
I don't know if this is because it's a Japanese headlight and they are wired differently, or because the previous wiring repair wasn't done correctly.
Any thoughts out there?
Thanks.
-Shervin
 
1 - 2 of 2 Posts
Top