Motor Vehicle Maintenance & Repair Stack Exchange
Motor Vehicle Maintenance & Repair Stack Exchange

Questions tagged [bcm]

Body Control Module - An ECU that controls various aspect of the cars body.

A body control module is a type of ECU (electronic control unit). A BCM controls power windows, power mirrors, air conditioning, immobilizer system, central locking, individual locking, window disable and other aspects of a vehicles body.

An Image of a BCM

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What is the BCM (Body Control Module) in a car?

I own a Fiat Grande Punto. Recently I was told by the authorized auto workshop that the BCM in my car has failed and needs to be fixed. So I have two questions regarding this: What is the BCM and what does it do? They asked me to give them certain…
Apache Fan
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Keep Alive Memory (KAM)

What is "Keep Alive Memory" (KAM) and how is it different from RAM? From what I read over the internet, it is kept alive even after the ignition is OFF, but isn't that what a ROM is supposed to do?
Randy
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Find all modules supported in my car

I own a Mahindra Scorpio S10 (2015 model) and want to find out what modules are there in my car (ECM, TCM, Body Control Module, Suspension control module etc.) using an ELM 327 Bluetooth device. Can anyone suggest a method of how I can discover the…
Soumya Sen
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Installing new Body Control Module

I recently bought a new BCM for a 2009 Infiniti FX50S. On installing new BCM, there was total blackout; no more ignition light. How can I programme the new BCM to work with my car?
Otaru
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2008 Saturn Aura: Programming the mileage on a used BCM

HELP! I replaced the BCM in my 2008 Saturn Aura with a Used BCM. I then took it to the dealership to have them program it. Now I notice that my odometer isn't working, so I looked at my invoice from the dealership and it reads the same odometer…
Melissa
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Steering control panel upgrade for the 2015 Kia Forte

I purchased a 2015 Kia Forte LX and I'm wanting to replace the stock remote control panel on the steering wheel with that of the panel on the EX. I know it's possible because every time I spoke to someone at the dealership they said I wouldn't even…
Karla Parker
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whether changing a 2010 Nissan Santra car Battery can cause the BCM to stop car from running

I have a 2010 Nissan Sentra that I am financing from Nissan. I got it from them after december 7, 2015. The car right now is not starting and it is back with Nissan servicing. They said that the problem is the BCM and something else, basically,…
sneekichickt
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Body control module broke while my Peugeot was being painted. Is this just a coincidence?

I brought my Peugeot 308 into a garage to have some panels resprayed. Once the respray was complete, they told me that there was a problem with the car and it wasn't starting. Now, after 5 weeks, they've told me that it's the body control module…
lianne
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Honda Brio AC Problem

My Honda Brio EMT 2015 model is having AC problems. The AC mechanic says the problem is in the ECM. Please enlighten me whether the BCM controls the AC or ECM does.
FEROZ KHAN
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Hyundai Tucson has trouble shifting when ESC and DBC lights come on

I own a 2011 Hyundai Tucson Limited. Sometimes, seemingly randomly, the Electronic Stability Control light will turn yellow, and the Downhill Brake Control light will turn red. This sometimes causes problems my shifting. When I am in park, I…
Ethan
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2008 Mazda 6i - Do I Need to Flash the BCM?

Do I need to flash the BCM if I replace it? I have a 2008 Mazda 6i and the horn, brake lights and cruise control do not work. The repair shop says the BCM shows signs of water damage and needs to be replaced. Pulling the old one is easy enough and I…
user13830
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Washer pump not engaging for front wipers (possible inverter problem)

The front washer jets in my Peugeot 206 (year 2000) have stopped working recently - the rear one is still working fine. The vehicle is using a single twin-outlet pump to control back and front washers. The pump has a two-pin connection (GND, 12V)…
Bart Platak
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Cadillac CTS "Traction Control Off" displayed after driving 15 mins

After driving 15 mins the "Traction Control Off" light is displayed on dashboard and radio displays "Service Brake Assist". All go away after engine is turned off for about 20 mins. It recently got new Electronic Control Module and Body Control…
ExceptionalException
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2017 FPIU console controls inop, u0256 & u0140 error codes

I have a 2017 Ford Police Interceptor Utility (FPIU) throwing two error codes: FCDIM U0256:00-AF, Lost communication with Front Controls Module 'A' HVAC U0140:00-0A, Lost communication with Body Control Module Symptoms include inoperative controls…
CragMonkey
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My AC Cooling Stops After 30 Minutes or so in Skoda Fabia 2008: Compressor or Electrical Problem?

I own a 2008 Skoda Fabia, and recently I've been experiencing an issue with the AC. It cools fine for about 30 minutes, but then the cooling stops, although the fan keeps blowing air. To get it working again, I have to turn the car off and on. I…
Zaid
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