When do I need to reprogram my Chevy PCM?
If the vehicle isn’t performing the way it should, the PCM can be reprogrammed to increase performance. Recalls are another reason your PCM may need to be reprogrammed. Since Chevrolet is a subsidiary of General Motors (GM), GM tools and software are used to reprogram a Chevrolet PCM.
How do you reset the computer on a GMC?
This scan tool can be purchased from most auto parts stores and is required to reset the vehicle’s computer. Open the door on your GMC vehicle and locate the port to the left of the fuse panel. Plug the electrical connector from the OBD scan tool into the OBD port. Turn the ignition key to the “II” position.
What does the PCM do in a car?
The powertrain control module (PCM) in your vehicle is the main computer controlling its various operating systems. For example, the PCM controls the engine, the transmission, the fuel system, and the speedometer.
Where do I go to get my PCM programmed?
If this isn’t a procedure you will do on a regular basis, you can have your PCM programmed at your local dealer or some local part stores. All you need is your VIN, mileage and the PCM that needs programming. Make sure the battery in your scan tool is completely charged.
If the vehicle isn’t performing the way it should, the PCM can be reprogrammed to increase performance. Recalls are another reason your PCM may need to be reprogrammed. Since Chevrolet is a subsidiary of General Motors (GM), GM tools and software are used to reprogram a Chevrolet PCM.
When to replace your PCM ( and when not to )?
The onboard computer is the brains of the engine control system, so when the brain isn’t functioning correctly neither is the engine or anything else that the microprocessor controls – which may include the charging system, transmission, various emission controls and communications with other onboard control modules.
How to relearn a procedure on a GMC after changing?
Without resyncing, the PCM cannot properly determine the position of the crankshaft. The proper procedure for resyncing or relearning the crankshaft position is called the “CKP Variation Learn.”
The powertrain control module (PCM) in your vehicle is the main computer controlling its various operating systems. For example, the PCM controls the engine, the transmission, the fuel system, and the speedometer.
How does the BCM work on a GMC Truck?
In order for the vehicle to start, the BCM (as well as the Passkey module in other vehicles) must identify the resistor pellet in the key, then the BCM sends a password to the PCM. If this password matches the password stored in the PCM, the system enables fuel delivery.
What to do if your GMC Truck wont start?
No relearn is necessary. In this situation, the vehicle will start and run with no problem. If the vehicle won’t start, check your scan tool for a VTD (Vehicle Theft Deterrent) Fail-Enable Mode trouble code, or if the security light on the dash is illuminated.
What does the PCM do in a Chevy truck?
by Alibaster Smith. The PCM, or powertrain control module, in your Chevy truck serves as the on-board diagnostic computer for your vehicle. The PCM controls everything from air-to-fuel ratio to generating fault or trouble codes for critical vehicle systems. If your PCM fails your Chevy truck can experience a wide range of problems.
Can a Chevy service Tech reprogram a Silverado?
Took my 2017 silverado 2500HD to chevy to have them reprogram my BCM. (truck came from canada and you cant turn off the light unless your in park! Safety thing canada does) But, the service tech said he cant SWITCH OUT my BCM because it’s Vin’ed to the vehicle which I understand, but I wanted him to reprogram it which he said he can’t do!?
When to reset the computer in a GMC?
After the vehicle has been repaired, you or your mechanic must reset the computer so that the light (s) on the instrument panel will shut off. It’s important to reset the computer so that it can continue to accurately diagnose problems with the vehicle.
by Alibaster Smith. The PCM, or powertrain control module, in your Chevy truck serves as the on-board diagnostic computer for your vehicle. The PCM controls everything from air-to-fuel ratio to generating fault or trouble codes for critical vehicle systems. If your PCM fails your Chevy truck can experience a wide range of problems.