Q: I have a 2005 Suzuki Forenza and I have a code that's saying it lost communication with engine, EMC, so was told I needed a new computer

asked by on

I have a 2005 Suzuki forenza and I have a code that's saying it lost communication with engine, emc, so was told I needed a new computer for my car. Do I really need a new one or did that one just needed to be reprogrammed and if I do need a new one can I get a used one and do I have to have it reprogrammed or can I just have it put in. And so I have to go to delearship for reprogramming
My car has an automatic transmission.

Hello. If the communication has been lost, then it may need a computer. Many times though this has more to do with a bad power supply to the computer than anything else. I usually start by checking the power going to the computer from the battery and the ignition switch. Most of the time the problem is the ignition switch. If the computer is receiving power and is not communicating, then it is faulty. If it needs a computer, a new one would need to be installed and programmed to the car. Your best bet for a problem like this would be to get in touch with a dealership, since they will be better equipped to handle any computer troubles your car is experiencing.

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
  1. Home
  2. Questions
  3. I have a 2005 Suzuki Forenza and I have a code that's saying it lost communication with engine, EMC, so was told I needed a new computer

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: When my car is idling at a stop sign, I have a rattle coming from the front right.

Hi there, thanks for writing in. If the noise is there even when the engine is running, then the balancer needs to be checked as well as the engine mounts. Either one of these will cause this to occur. I...

Q: A scanner found the code P02B4, what does it mean?

That is an interesting code since your engine only has 4 cylinders. It is possible that the vehicle has the wrong information stored in the computer and is throwing a code for a V-8 engine. I recommend having your computer...

Q: I have 2006 dodge Dakota just put a transmission in. I have 4 of them and got one that works. Had to put the PCM computer in.

If you used a computer (PCM) to run the transmission from a different vehicle, then you will have to get the computer flashed to the vehicle that you are fixing. The program is not matching the VIN on your vehicle...

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...