How to replace the ignition switch on a GM car?
1. Insert ignition key and turn to the “ON” position. Do not attempt to start the engine. Leave the key in the “ON” position for approximately 11 minutes. The security light will be steady on or flashing for the 11-minute period. Do not proceed to Step 2 until the security light turns off or stops flashing. 2.
What are the warning lights on my GMC?
What follows is easily the most complete list available of symbols and warnings that may appear in and on your car’s dashboard or instrument cluster. The following are warning lights and indicators found in vehicles built by GMC.
What should I do if my GM security light is flashing?
Insert ignition key and turn to the “ON” position. Do not attempt to start the engine. Leave the key in the “ON” position for approximately 11 minutes. The security light will be steady on or flashing for the 11-minute period. Do not proceed to Step 2 until the security light turns off or stops flashing. 2.
How does TDM validate resistive chip in ignition key?
The TDM portion of the BCM will validate the resistive chip in the ignition key. If resistance value read by the BCM is what the BCM is expecting, the BCM will send a message over serial data to the PCM informing the PCM that a valid key is present and the PCM may start the vehicle.
Why is my key not turning on my GMC Sierra?
While there are a variety of reasons your GMC Sierra 2500 HD key won’t turn, the most common 3 are a binding steering column/lock, an ignition switch issue, or a problem with the ignition key.
What to do if your ignition key won’t turn?
On several occasions after vehicle is parked and shut off, ignition key is inserted to start vehicle and the key will not turn. Only known remedy is to pull hard on the steering wheel in a left or right rotation while turning key at same time to unlock an otherwise locked ignition/steering wheel.
How does the ignition switch work on a GM car?
The ignition switch now talks to the body control module (BCM) and it’s the BCM that initiates one of two relays. The second relay, the more important of the two, is controlled by the powertrain control module (PCM). And it only operates the starter relay after it’s satisfied that the correct key is in the ignition.
Why does my Chevy Silverado not turn the ignition?
It’s just from the steering wheel locking and it make it hard to turn the ignition if the steering is turned a lot when it’s shut off. I only have it do this when I park the truck on the street since I turn the tires like you should be parking on a slight hill on the street.
1. Insert ignition key and turn to the “ON” position. Do not attempt to start the engine. Leave the key in the “ON” position for approximately 11 minutes. The security light will be steady on or flashing for the 11-minute period. Do not proceed to Step 2 until the security light turns off or stops flashing. 2.
How to relearn GM vehicle theft deterrent ( VTD ) procedures?
Turn the ignition switch to the “ON” position as in Step 1 for 11 minutes for a third time. 6. Turn the ignition switch to the “OFF” position for 30 seconds for a third time. 7. Turn the ignition switch to the “ON” position for 30 seconds. 8. Turn the ignition switch to the “OFF” position. 9. Attempt to start the engine.
How long does it take to relearn the ignition switch?
When performing this relearn, all previously learned keys will be erased. Additional keys may be relearned immediately after the first key has been learned by inserting the additional key and turning the ignition switch to on within 10 seconds of removing the previously learned key. Turn key to the “ON” position without starting the engine.
How long do you leave ignition key on while programming?
Connect a battery charger to the battery to ensure power is available while programming. Both the BCM and PCM must be working and communicating with each other. Insert ignition key and turn to the “ON” position. Do not attempt to start the engine. Leave the key in the “ON” position for approximately 11 minutes.
What happens if you don’t have the ignition key?
In addition, the ignition switch plays a role; in keeping your car from getting stolen. Consequently, without the key, the switch won’t move to the start or run positions, and will lock the steering wheel. OFF – Or LOCK position – Turns off power to the engine and electrical accessories
How to reset the anti theft system in a Ford?
1 Insert the key into the ignition and turn it on to the position where the accessories are activated but not the engine. 2 Leave the key in this position for at least 10 minutes. 3 Check the anti-theft light again. 4 Now try to start the engine. 5 Repeat the process at least a couple of times if it does not work the first time.
How do I Turn Off the anti theft light in my car?
Insert the key into the ignition and turn it to the on position, which activates your accessories but not the engine. Leave the key in position for about 10 – 15 minutes. Step 3: Check the anti-theft light again. If it’s no longer blinking, turn the key back to the Off position and allow it to set for a minute or two.
Insert the key into the ignition and turn it to the on position, which activates your accessories but not the engine. Leave the key in position for about 10 – 15 minutes. Step 3: Check the anti-theft light again. If it’s no longer blinking, turn the key back to the Off position and allow it to set for a minute or two.
When does the anti theft system car wont start?
If the engine does not respond or dies immediately after cranking up, leave the key in that position for 10 minutes. When the security light goes off, turn the ignition off, wait 20 seconds, and then start the engine. These are the most popular ways to solve the problem of anti theft system car wont start.
How to turn on security light without starting engine?
Turn key to the “ON” position without starting the engine. Security light should turn on and stay on. Turn key to the “ON” position without starting the engine. Security light should turn on and stay on. Turn key to the “ON” position without starting the engine. Security light should turn on and stay on. Turn key to the “OFF” position.
Which is part of the ignition switch reads the security code?
The ignition lock cylinder is where you stick the key in. When you operate the key you operate a separate part known as the ignition switch. The lock cylinder still remains important because it reads the security code embedded in the ignition key.
Can a unworn key turn an ignition cylinder?
Or, an unworn key may not turn a worn ignition cylinder, as they haven’t “worn together.” How To Fix It: The best way to do this is to get a new lockset, with new keys and a new cylinder. You might consider getting a matched lockset that includes the door and trunk cylinders.
Or, an unworn key may not turn a worn ignition cylinder, as they haven’t “worn together.” How To Fix It: The best way to do this is to get a new lockset, with new keys and a new cylinder. You might consider getting a matched lockset that includes the door and trunk cylinders.
How long does it take to turn off a GM security light?
Leave the key in the “ON” position for approximately 11 minutes. The security light will be steady on or flashing for the 11-minute period. Do not proceed to Step 2 until the security light turns off or stops flashing. 2. Turn the ignition switch to the “OFF” position for 30 seconds. 3.
What happens when the ignition switch is off?
Generally speaking, in the “OFF” position, the ignition switch doesn’t connect anything; in the “ACC” position, the radio or fan may be energized; in the “RUN” position, the engine control module is energized; and finally, in the “START” position, the starter relay is engaged. (These generalizations, depend significantly on year, make, and model.)