How Do I Reset My Chevy BCM?

Remove the nut from the negative battery cable and slide that off the battery. Now, go back to the interior of Your truck and turn Your

headlight switch

to the ON position; this’ll drain the remaining power from the ECM. You should wait at least 10 minutes before You turn these off.

Does the body control module have to be programmed?

Does the replacement BCM need programming? Most BCMs need

to be programmed by the remanufacturer or a shop equipped with the proper tools

. If the replacement BCM needs programming, it must be programmed with the latest operating software and vehicle calibrations.

Does a new BCM need to be programmed?

A new Body Control Module (BCM) must be

programmed with the latest operating software and vehicle calibrations

. The vehicle will not start and many other functions may not operate if a replacement BCM is not properly set up.

Can you replace a BCM yourself?

You can do so by unscrewing any screws or bolts. Once the parts covering the BCM are removed, you can then

start removing the BCM you are to

replace. You can use a ratchet to complete this instruction and remove the bolts that are holding the faulty BCM in its place.

Will disconnecting the battery reset the BCM?

When you disconnect the battery you’re accomlishing the same thing as resetting the BCM by

pulling the IOD fuse meaning

, cutting off power to the BCM.

How much does it cost to reprogram a BCM?

You will pay

around $300

for most cars to replace the body control module. That includes labor and parts. The parts will cost about $150, while labor will be closer to $100 or so, depending on how long it takes to rewire the car.

What problems can a bad BCM cause?

Potential causes of a malfunctioning BCM include

hard impact collisions, loose wiring harnesses, shorting of wires, excessive heat from the engine, and damaged sensors

. These instances can generate multiple problems such as computer miscalculations, which could make your car impossible to drive.

How do you know if you have a bad BCM?

Electronics, like windshield wipers and keyless entry, stop working properly.

Flashing dashboard lights

, or improper dashboard lighting. I.e., you could have a check engine light that should be on but isn’t, or you can have a check engine light that is on but shouldn’t be. High speed shake.

Can a bad BCM drain the battery?

A fault with the body control module can leave electrical components turned on when they should be turned off. This can drain the battery when

the engine is turned off

or if the vehicle is left parked overnight.

Can you bypass a BCM?

The BCM has been programmed to expect a

certain

voltage. If it receives the expected voltage, it sends a start signal to the PCM. When you bypass the passlock system you’re basically taking the lock cylinder case sensor out of the picture.

How do I fix bad BCM?

1. Pay attention to your vehicle. …
2. Check to make sure all the electronic devices are working properly. …
3. Turn the radio and CD player on. …
4. Check the fuse box if you suspect that your vehicle’s BCM is on the blink.

What happens when a BCM goes bad?

Most of the time,

a damaged BCM will have to be replaced and can’t be repaired

. Water, vibration, heat and age can all contribute to a module failing, which, depending on the placement of the unit in your vehicle, can be difficult to avoid.

How do I test my body control module?

1. Warning lights on the dashboard. …
2. Failure of the central locking system or security system. …
3. The engine won’t start. …
4. The battery keeps draining. …
5. Electrical systems not working as they should (or intermittently)

Is the ECM and BCM the same thing?

In the automotive electronics industry, Control Unit ECU is used as a generic term for any built-in system that controls multiple electrical features in a car. It usually includes:

Body Control Module (BCM)

… Engine control unit /Engine Control Module (ECM and PCM)

Where is the BCM fuse located?

ALLDATA Editor’s Note: Ford identifies this one component by 2 different names, Body Control Module (BCM) and/or Passenger Compartment Fuse Panel. The fuse panel is located

under the right-hand side of the instrument panel

.

What is a BCM fuse?

In automotive electronics, body control module or ‘body computer’ is a generic term for

an electronic control unit responsible for monitoring and controlling various electronic accessories in a vehicle’s body

.