Author Topic: Xenon's seem quite low  (Read 2997 times)

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Offline tazzimus

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  • Engine: 2.2L
  • Fuel: Diesel
  • Transmission: Manual
  • Trim: Sport
  • Year: 2010
Xenon's seem quite low
« on: December 06, 2020, 03:21:16 pm »
Have a 2010 UK Mazda 6 with what seems to be auto levelling hids, I don't have an adjustment dial for them so I assume they're auto levelling anyway.

They seem to be set very low in that they don't illuminate much of the road ahead.
Where are the fuses and the control unit for the levelling sensors located? Want to check these before I go looking at the ones on the suspension arms.

I checked the 4 headlight fuses under the bonnet which were fine and had a root around behind the glovebox but wasn't sure which box was the control unit. Google isn't being massively helpful for once. Either that or I'm googling the wrong things as all I'm seeing as the sensors on the suspension arms.

Offline apav

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  • Engine: 2.0L
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  • Year: 2009
Re: Xenon's seem quite low
« Reply #1 on: December 08, 2020, 02:30:06 pm »
The fuse is inside in the car, in front left corner, passenger side:

If you have done the safety recalls, there is a good chance the trader messed around with the items found behind the glove compartment. So the original location of the items will not be relevant anymore. In my case, he has thrown in various airbag wiring, removed the airbag screws, etc, the car is completely different than OEM. The airbags do not work anymore for a change.

The front auto leveling sensor is behind the front wheel:

The rear sensor is underneath the suspension sping:

Do you know how to use the on board diagnostics?

Press the trip meter and hold it, turn the key but do not start the car.

You will need to play around with buttons to make it respond.

If there is a fault recorded, you should be able to read the DTC:

Or consider that you have al these faults and go through each step. You should be able to spot where the problem is.

This is from the airbag system. You can read through the warning light and decide the DTC and then follow up to fix it. But with the headlights is even more primitive.

Check the headlight for the mechanism being broken and check whether you can hear the motor working.

There is a good chance to be the sensors = ££££££££££

One way or another, time will tell when MOT time comes. If the aim is not right, they will not go through.

It is the most common MOT failure nowadays. So the MOT should have a good idea of how to bodge it.

There is some kind of configuration you can but only if there is not DTC.

Given that it all starts by adding air to the tyres, and considering how many cars run on random pressures, maybe the motor and sensors overload and burn out.