Can you tell the date of manufacture of ecm computer from thepart number and serial number part numbur p56041328aj serial number teqth005921gvv?

1. What do the ECU numbers mean?
2. How do I identify my GM ECM?
3. Do ECU numbers have to match?
4. How do I find my ECU code?
5. What are codes for bad ECM?
6. What is ECM code?
7. Whats the difference between a PCM and an ECM?
8. How do you find the ECM relay?
9. What is a GM PCM?
10. Does the ECM have to match the engine?
11. Are ECM interchangeable?
12. Can you use a second hand ECU?

What do the ECU numbers mean?

What do the letters and numbers on a car's ECU mean? Generally, they are the part number and there may also be a label with a software revision number as well. You would have to give us the numbers and letters (preferably a photograph), make and model of car to be able to be any more precise than that.

How do I identify my GM ECM?

Locate the serial number on the car part. It should be either imprinted directly onto the metal of the part itself or on a sticker on the side of the part. ECM serial numbers are typically between nine and 10 digits long.

Do ECU numbers have to match?

AFAIK the whole number must match, including the letters.

How do I find my ECU code?

To find this information, you can use a VAG-Com/VCDS OBD-II cable. Start by plugging in the cable, then turn the key to the on position and launch the program. Your ECU Box Code and Revision will be on the screen in the indicated location.

What are codes for bad ECM?

The two most common causes of the P0601 error code are that the ECM (or ECU) is failing or has failed or that the ECM/ECU is receiving low voltage. The P0400 error code is defined as an Exhaut Gas Recirculation Flow Malfunction.

What is ECM code?

Definition. The PCM (powertrain control module, also known as ECM or engine control module in other vehicle makes) is referred as the 'electrical brain' of the vehicle. ... If the result of the self-check indicates a problem in the PCM, then it will store the Error Code P0606.

Whats the difference between a PCM and an ECM?

The main difference between the two is that the ECM controls specific parts of the engine, regulating and sending commands. While the PCM is used in newer models to control almost all engine functions.

How do you find the ECM relay?

The relay is located in the engine main fuse relay control box. The defective ECM-power relay is removed from the control box by pulling it straight up and out of socket. The new ECM-power relay is installed into the socket and the engine scanned for codes.

What is a GM PCM?

The powertrain control module (PCM) in General Motors vehicles is the main computer responsible for controlling most of the vehicle's computerized components including the engine, transmission and drivetrain.

Does the ECM have to match the engine?

In general, yes. All ECUs will need to have software intended to run the engine it is connected to. In addition, many newer cars (approximately 2008 or newer) use a CAN bus system where each component (like the ECM, BCM, PCM, etc) all need to be programmed to the VIN number of the car to work properly.

Are ECM interchangeable?

No they are not interchangeable from vehicle to vehicle because of software differences. But as for the ECM if you had a DRBIII tool you could reprogram it to work with any vehicle most likely.

Can you use a second hand ECU?

You totally can install the same model ECU into another car with the same model. However, if the car has an immobilizer, the car will not start until you program the immobilizer to match the VIN on the ECU.