Headlight relay location

[viper_080]

Can someone tell me where it is? Under the steering wheel? I that panel easy to take off? Thanks for the help

[diagnosticator]

There is NO relay for the headlights. The exterior lighting is all controlled (switched) by the Central Electric Control Module. Why do you ask?

[viper_080]

My high beams won't turn on at all now. Could it be a switch? Or do I need a new CECM?

[viper_080]

Anybody? I'm going to order a new control module. Is this an easy change?

[ECS Tuning-Audi]

Did you check the bulbs first? Never want to look over the simple stuff!

Jason

[viper_080]

Haha, yeah I checked the bulbs. Jason, do y'all have the module?

[ECS Tuning-Audi]

Yes we do have them available.

Click HERE to order or for more information.

Let me know if you have any other questions.

Jason

[diagnosticator]

Can someone tell me where it is? Under the steering wheel? I that panel easy to take off? Thanks for the help

Are we discussing your '09 A4? or a B6 A4?

[diagnosticator]

Yes we do have them available.

Click HERE to order or for more information.

Let me know if you have any other questions.

Jason

Jason, the module you linked to is not the module the OP needs. The headlight range controller is not involved with the control of the headlight high beam or low beam lamp power supply. The range controller only adjusts the beam elevation angle based on the suspension position sensors. The headlight power is switched on and off by the Central Electric Control Module, aka, "Onboard Supply Control Unit". The required PN depends on if the OP's A4 is a B6/B7 or B8.

[diagnosticator]

Anybody? I'm going to order a new control module. Is this an easy change?

Yes, relatively easy. You need to disconnect the battery negitive cable from the negitive battery post, then remove the driver's side lower dash cover above the pedals, then remove the two 8 mm hex bolts from the fuse panel and move the fuse panal aside, next disengage the harness connectors from the module, then remove the two 10 mm hex nuts that secure the module behind the fuse panel. Install the new module using the reverse steps. On a B6/B7, the CECM is located above the horizontal row of relays inboard and slightly forward of the fuse panel, and has three harness connectors plugged into the module.

[ECS Tuning-Audi]

Jason, the module you linked to is not the module the OP needs. The headlight range controller is not involved with the control of the headlight high beam or low beam lamp power supply. The range controller only adjusts the beam elevation angle based on the suspension position sensors. The headlight power is switched on and off by the Central Electric Control Module, aka, "Onboard Supply Control Unit". The required PN depends on if the OP's A4 is a B6/B7 or B8.

My mistake. Here is the on board supply control unit.

B6/B7: Click HERE

B8: Click HERE

Let me know if you have any other questions.

Jason

[04QuattroTurbo]

I get an intermittent Headlight Sensor code, something about ground when I do a complete VAG-COM diag, I erase it and it goes away. I do notice that I get the headlight warning thingy every now and then when I drive through some shade and then out to brightness again. Does anyone know where that sensor is, so I can check it out? Sorry to threadjack...:)

[a4audi4fun]

Might be the one on the mirror attachment to the front windshield.

[viper_080]

Dang, sorry I missed all of this!!! Thanks for the help and yes this is for the B6. I need to get it fixed so I can sell it. Just ordered a Mini yesterday.