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Saab Key Programming

saab ignition key replacement cars built since about 1994 come with an immobilizer system built on coded keys. To add an additional key, you need the purchase of a new transponder as well as special programming. This is usually done by the dealer with a specialized Tech2 diagnostic tool.

The issue is that this could be extremely expensive. You should always keep an extra set of keys on hand.

Transponder key

The transponder is a key with an electronic chip. The chip sends a signal when the key is put into the ignition. The car will check to see whether the signal matches with the one on the key. If the signals match the car will then unlock itself and begin. This is a great method to prevent car theft and keep your car safe from thieves.

Transponder keys could be an extremely popular accessory for cars, but they are not as secure as traditional metal keys. While the metal component of a conventional key can be cut and copied the transponder is protected by an electronic chip. The chip has an individual code that is embedded into the car's computer to identify it.

When a Saab key fob is used the car recognizes it and allows it to turn on. However, it is only able to do this if the fob is equipped with a chip that is not modified that has been programmed to match it. The car will not start when the key isn't programmed to match.

It is vital to have an extra Saab key. This is especially true if you live in a rural location where there are a lot of car burglars. You can get a new key for your Saab by going to the dealership and not paying their expensive prices. In the majority of instances, you can get an original key made on the spot for less than half the cost of what you would pay at dealerships.

Key for Wired

saab replacement key cars typically come with two keys when they are new. If you only have one, it is a good idea to get an additional key fob as soon as is possible in case you lose it the car will require a new CIM unit, and the locking cylinders need to be replaced. This could be expensive, especially if you are purchasing a used vehicle.

The next step is connecting the wires for columns and row to your microcontroller. This is the most difficult part of the project and will require a large deal of soldering. There is no standardized way to do this, but it's important to plan out the routes you'll use to solder the rows and columns. For this keyboard, there are five rows and 17 columns, which means there will be 22 microcontroller wires and pins to connect.

Once the rows and columns are soldered, it's time to connect them to the key switches. Solder a diode to each key switch pin. This will protect the pins of the key switch from current and also prevent them from being shorted. The diode allows current to only flow in only one direction. It features a visual indicator, a black band, that indicates which direction current will flow.

A few of the tools that are available at auto parts stores -like the Autel MaxiIM IM608 Pro and IM508 -- can help customers in the shop, or even DIY users in some cases create replacement keys and restore lost immobilizer information, Sanabria says. The tools plug into the OBD port and automatically guide the customer through the process, making it more simple than replacing the computer inside the vehicle.

Jumpstarting the battery

A majority of people keep the set in their trunk to jump-start their vehicle in an emergency, but this might not be a good idea for cars with more modern technology. They have numerous digital and electronic devices that communicate with one another. A voltage spike when the battery is connected to another could cause damage to these components and render your vehicle unable to drive.

Start the vehicle that is working and let it run for about two minutes before connecting the cables to the disabled one. Attach the red clip to the positive terminal on the battery that is good (it will have "POS" or "+" on it). Attach the other end of the black cable to an unpainted, clean metal surface under the disabled vehicle's hood. An engine block is a good choice. Do not connect the black cable to the negative terminal of the dead battery because it could ignite an ignition that ignites the gasoline in the engine bay.

Once the cables are connected, you can start the vehicle that has been disabled and allow it to run for around five minutes before you disconnect them in reverse order. The battery in the Saab 9-3 will charge as you drive. It will take a while for it to fall back. It is recommended to purchase a second key fob, when you can. Replacing the only one that works requires the installation and programming of a brand new computer chip.

Replacement case

Saab owners usually only have one car key, and if it is lost, they'll be charged. It's expensive to purchase the key and also requires replacing the CIM or TWICE for older models. It is recommended to have a backup key in the event of theft or other disaster and the most effective way is to purchase an extra key as quickly as you can. Even if the key is "new" it won't work.

The majority of locksmiths won't be able to help with a single working key, and the dealer will charge you high prices to replace the computer in your car to create a replacement. However, we can reset and reprogram the computer's EEPROM to accept an alternative key without replacing the entire system. This could save you a significant amount of money. It's much cheaper instead of waiting until you lose the only key.