Q: Code reader indicates bcm not communicating

asked by on

does it make sense to re-flash the program or do I need to buy a good bcm and flash the program into that one? VIN # is 5GZCZ23D13S851180.

My car has 150000 miles.
My car has a manual transmission.

Hello. The message you are receiving is displayed when the scan tool is unable to communicate with the vehicle’s body control module. Depending on the model of scan tool this could mean that it is unable to communicate with the vehicle’s body control module, or with any sort of computer. The cause of this can vary from incompatibility issues with the scan tool, to a faulty computer. If the vehicle is running then that indicates that the computer is indeed working, and that the issue may be something else. If it is not then it could be possible that the computer is bad, in which case it may have to be replaced, and if so, reflashed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Code reader indicates bcm not communicating

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: no start

There are several possible reasons for a vehicle to crank and not start. A bad fuel pump, clogged fuel filter, faulty injectors, bad ecu, failed ignition coil, or a malfunctioning sensor. It will first be necessary to figure out if...

Q: My car is leaking oil from the bottom part of the engine

The oil leak may be coming from a leaking oil drain plug or another gasket or seal of the engine. The inlet tube is very important: it seals out the dirt and debris that the filter cleans out of the...

Q: Key hard to turn; car starts and turns off

It sounds like the ignition lock assembly may be damaged. This is the part that the lock cylinder goes inside and may need replacing. There seems to be a recall on the ignition switch for this car. I would take...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.