How do you reset the Security on a 98 Chevy?
If you have the original key, you can reset the passlock easily.
- Insert your registered key into the ignition. Try to start your Chevy truck.
- Turn the key back to the “Run” position. The security light will start to flash off and on.
- Turn your key clockwise to crank the ignition.
How to have the RPO programmed in the BCM?
Then drive it in to have the RPO’s programmed in the BCM. 1 Turn ON the ignition, with the engine OFF. 2 Attempt to start the engine, then release the key to ON; the vehicle will not start. 3 Observe the SECURITY telltale; after approximately 10 minutes the telltale will turn OFF. 4 Turn OFF the ignition, and wait 5 seconds.
When to replace a Body Control Module ( BCM )?
Because the BCM is the one handling a lot of different functions in the car, it is also inevitable for all those functions to stop working when the BCM does get damaged. When this happens, a replacement may be the best resort for you. Still, the repair cost of the control module also depends on the kind of vehicle that you drive.
When do you need a computer relearn procedure?
INTRODUCTION Vehicles equipped with engine or transmission/transaxle computers may require a computer relearn procedure after the vehicle battery is disconnected. Vehicle computers memorize and store vehicle operation patterns for optimum driveability and performance.
How to do BCM programming on a GM Truck?
1 Turn ON the ignition, with the engine OFF. 2 Attempt to start the engine, then release the key to ON; the vehicle will not start. 3 Observe the SECURITY telltale; after approximately 10 minutes the telltale will turn OFF. 4 Turn OFF the ignition, and wait 5 seconds.
Do you have to relearn a BCM code?
If you have this code, then the vehicle probably is equipped with a BCM, and you must perform a relearn. The next section applies only to those vehicles that use a BCM. For those vehicles that use a BCM, the BCM can learn the resistance value of the existing key by using the relearn process.
How does the BCM learn the resistance of a key?
For those vehicles that use a BCM, the BCM can learn the resistance value of the existing key by using the relearn process. 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.
Because the BCM is the one handling a lot of different functions in the car, it is also inevitable for all those functions to stop working when the BCM does get damaged. When this happens, a replacement may be the best resort for you. Still, the repair cost of the control module also depends on the kind of vehicle that you drive.
When do you Know Your BCM is not in good condition?
You will know that your BCM is not in good condition if you experience a no crank or no start condition. This happens as the Body Control Module communicates with the other module. What does a body control module do? In the first parts of this article, we have discussed the functions under the Body control module.