Arcturus

Hello,

Well it seems my new LS is throwing up error messages faster than I can fix em. Lucky me.

I am now getting the "Headlight Levelling" warning. Anyone had this problem before? Going to look in the service manual. Just wondering what the common problems are here.

Any troubleshooting advice?

Thanks.

1WILLY1

iTrader: (9)

since I bought my car ive had -ac filter - warning and ' brake wear ' warning ,.,,,both very minor as is your code,,,just fix yiour headlight level

warminwisc

See the AFS light post above, has the car seen alot of salt in its day?

Tom57

Headlight leveling sensor is rusted as warminwisc alluded to ... Easy DIY ... put some lube on new one to delay rust again.

Arcturus

I now have three going all at the same time. Looks like Times Square in my dash:

1) Change Cabin A/C Filter - part on order
2) Check VSC - part on order - Defective front drivers' side wheel speed sensor / wheel bearing
3) Headlight Levelling - unknown.

Fun.

Glad to hear this is minor.

Arcturus

Yes we have had a pretty brutal winter here in Quebec. They use a lot of salt on the roads. Car body is in good condition and don't see rust anywhere but it's possible the sensor is rusted.

Where is this sensor? I'll try and find the post referred to by warminwisc

Arcturus

What type of lube do you recommend? Wheel bearing grease? Something thick?

Is this for the lever mechanism?

Arcturus

Is there any way I can troubleshoot which part of the system it's coming from? For the ABS warning light you can pull the codes by using a paperclip on the number 4 and 13 pins of the OBDII connector. However in the service manual the only way to pull the codes it gives is to connect a techstream scanner to it.

Is there any other way other than bringing it to a Lexus garage or randomly inspecting / changing pieces?

warminwisc

I am pretty sure you can get it on a rack and see the rusted broken part. I traded mine in and did not fix it.

Tom57

Look at the left rear sensor arm (driver's side rear wheel). Remove it and you'll probably notice the arm is rusted and doesn't move easily at the joint. You could try soaking it in a CLR rust remover type solution first for a few hours, before doing R&R. (You can drive car without the sensor installed - heigth of lights will not be aimed though.) Either way, use a bearing grease at the joint to staunch the rust process in the future.

Tom57

Yes, it's the lever arm - that's the leveling sensor. It's probably rust-locked in a stationary position.

Tom57

When you replace that cabin air filter, be sure to re-set the ventilation system > per owners manual - hold the "Off" button in until you hear the "beep.")

Tom57

The headlight leveling sensor that I replaced (5 1/2 years ago) (Driver's side rear) is part # 89408-50060. It listed then for $365 - my price $275 ... not a cheap part. At least it's easy to R&R though. Maybe try rust remover solution first (I wish I had tried that) before shelling out $300.

Arcturus

Thanks Tom. I'll have a look at it when I replace the wheel hub. It seems to be an intermittent problem. And I can see my lights moving every so often. Hopefully it's just rusty and needs some cleaning up.

Is there any possibility of a short between the headlight levelling sensor and a left front wheel speed sensor? I'm asking because both of these lights come on and then turn off after some time. They never stay on continuously.

Tom57

I think those are two completely independent systems. However, they both are likely affected by your climate conditions. I seem to recall that the wheel speed sensor alone can be replaced, or the whole bearing assembly with integrated speed sensor. I've only replaced the entire bearing assembly.