Bmw E46 Light Control Module Repair

Installing a bmw cluster.

Bmw e46 light control module repair.

As early as the 80 s bmw moved to an electronic module to control lights and switches. The usual symptoms associated with a bad ecm are ignition or injector issues idle air control issues no communication and such. The headlight switch and module assembly are relatively easy to replace. It is an uncomfortable truth that age is starting to take its toll on many key electronics in our wonderful e46 3 series cars.

Just pry off the horizontal trim panel that surrounds the switch and then remove the screws that secure the switch to the dash pull the switch assembly out. This video is about coding new or used light control module also known as the alsz module in a bmw. These problems are caused by a short circuit or interruption of an internal transistor in the lcm you can ask dealers to replace the entire lcm but it is 400 need to reset bmw light control module and reprogram it as an alternative you can simply replace the transistor infineon bts426l1 so in this guide i will share how to repair bmw light control module. Your check engine light won t always come on when the ecm malfunctions.

Description bmw ecu repair dme electronic control module repair. Most bmw cluster repair services range from 150 to 300 depending on the issue while a new bmw cluster at the dealer costs over 1000. This video will also show you how to code your bmw for le. Engine control module ecm the ecm or ecu controls various engine operations in your vehicle.

3 have no lights at all on one side. Whether or not you are looking for a remanufactured bmw ecu dme tomorrow or looking to send yours into be rebuilt we have your solution. Module experts provides a full line of bmw ecu repair. Once upon a time a light switch in a car simply completed a circuit between the battery and a bulb or sometimes the battery to a relay which activated the battery bulb circuit.

On the e46 chassis 3 series 99 05 the lkm is incorporated into the main headlight switch. Those days are long gone.