Saab Ignition key replacement Key Programming

saab 9-3 key fob programming cars built since about 1994 feature an immobilizer mechanism made up of coded keys. A new transponder is required for the addition of a second key, as well as special programming. This is usually done by the dealer using a Tech2 diagnostic tool.

The problem is that it can be very expensive. This is why you should always have a spare key on hand.

Transponder key

The transponder key comes equipped with an electronic chip. It transmits a signal to the car when it is inserted into the ignition. The car is able to check whether the signal matches the one on the key. If the signals are in sync the car will then unlock and begin. This is a great way to avoid car theft and keep your car safe from thieves.

Transponder keys can be an increasingly popular feature for cars, but they are not as secure as traditional metal keys. While the metal part of a conventional key can be cut and copied however, a transponder is secured by an electronic chip. The chip is equipped with a unique code programmed into the car's computer to identify it.

The car will recognize the Saab keyfob and permit it to be turned on. However, it can only do this if the fob has an unmodified chip that has been programmed to match it. Otherwise, the car will reject the key and won't start.

It's important to make sure that you have an extra key for your Saab. This is particularly important if you reside in a rural area with numerous car thieves. You can get a new key for your saab 9-3 key replacement by visiting the dealership and not paying their pricey prices. In the majority of instances, you can get an original key made on the spot at a fraction of the cost you'd pay at an auto dealer.

Wired key

Saab cars are usually delivered with two keys. If you have only one, you need to purchase an additional key as soon as you can. This is because if it's lost and the car needs an entirely new CIM and the locking cylinders replaced. This can be costly particularly if you are purchasing a used car.

The next step is to connect the wires of the column and row to the microcontroller. This is the most difficult part of the project and requires a significant amount of soldering. There isn't a standard method to do it, but you must think about how to open a saab 93 without a key to route and connect each column and row. For this keyboard, there are 5 rows and 17 columns. So there will be 22 microcontroller pins and wires to connect.

After the rows and column are soldered together then it's time to connect the key switches. To do this, put a diode on each key switch pin and solder it. This will protect the pins from current and prevent them from being cut off. A diode allows current to only flow in only one direction. It is equipped with a visible indicator of a black line that shows the direction in which the current will flow.

Sanabria says that a few of the tools offered in auto parts stores, including the Autel MaxiIM IM608PRO or IM508 are able to assist customers shopping or DIY customers to program replacement keys and restore the immobilizer's data. The tools plug into OBD ports and guide the customer through each step which makes the process much easier than replacing the car's computer.

Jump starting the battery

A lot of people keep a set of jumper cables in their trunk to use in an emergency, but jumping a battery for newer cars might not be the best choice. These vehicles are equipped with digital and computer systems that communicate with each other. A voltage surge when the battery is connected to another one could cause damage to the parts, rendering your car undriveable.

Connect the cables to the vehicle that is working. Allow it to run for two minutes. Attach the red clip to the positive terminal on the good battery (it will have "POS" or "+" on it). Attach the other end of the black cable to a clean, unpainted metal surface beneath the damaged car's hood. The engine block is a good choice. The black cable is not to be connected to the negative terminal of the dead battery. This could cause sparks, which could ignite the gasoline inside the engine compartment.

After the cables have been connected, you need to begin the car and allow it to run for around five minutes. Then, disconnect the cables in reverse. The battery in your saab fob key replacement 9-3 will be recharged as you drive. It takes a while for it to return to its original state. It's a good idea buy a spare key fob as soon as you can, because replacing the only functioning one requires the installation of a brand new computer module and a special program to convince it that your missing keys are not trying to steal the car.

Replacement Case

Saab owners typically only have one car key, and if it is lost, they will be charged. The reason is that it's not cheap to add a new key, and it requires replacing the CIM (Column Integration Module) or TWICE on older models, and programming. In the event of theft or any other catastrophe it is best to have an extra key. Even even if the key is "new", it will not work.

The dealer will charge you the highest dollar for only one working key. We can reset and reprogram the computer's EEEPROM to make it ready to accept a replacement key without the need to replace the entire system. This can save you a significant amount of money. It's also cheaper than waiting until you lose your only key.