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Saab Key Programming

saab ignition key replacement cars produced from 1994 have an immobilizer system that is based on a set of keys. To add an additional key, you need a new transponder and special programming. This is usually done at the dealer, using a specially-designed Tech2 diagnostic tool.

It can be costly. It is always advisable to keep an extra set of keys on hand.

Transponder key

The transponder is a type of key that is equipped with an electronic chip. This chip sends out a signal when the key is inserted into the ignition. The car then checks to see whether the signal is the same as the one on the key. If the signals match then the car will be able to unlock and start. This is an excellent way to protect your vehicle from theft.

Transponder keys are a favored feature in automobiles, but you must be aware that they aren't as secure as traditional metal keys. While the metal component of a traditional key may be cut and copied but a transponder key is protected by an electronic chip. This chip has a unique code encoded into the car's system to identify it.

When a Saab key fob is used the car recognizes it and allows it to turn on. The car will only recognize the key fob if the device has an unmodified chip and has been programmed to match. The car won't start when the key isn't programmed to match.

It's important to make sure that you have a spare key for your Saab. This is particularly important if you live in a rural area where there are many car thieves. The good part is that you can find a replacement key to your saab 9-3 key not accepted contact service without needing to visit an auto dealership and pay the expensive prices they ask. You can get a replacement saab 9-3 key key made on the spot for less than half of what you would pay at a dealership.

Wired key

saab replacement keys cars usually come with two keys upon purchase. If you have only one, it's recommended to purchase an extra key fob as soon as you can since if you lose it the car will require a new CIM unit, and the locking cylinders will have to be replaced. This can be expensive particularly for used cars.

The next step is to wire the row and column wires to the microcontroller. This is the most difficult part of the project and will require a good amount of soldering. There is no standard method to accomplish this, but it's important to plan out the routes you'll use to solder the columns and rows. There are 22 microcontroller pins and wires to connect to this keyboard. It has five rows and 17 columns.

After the rows and column are joined, it is time to connect the key switches. To do this, place a diode over each pin on the key switch and then solder it. This will protect the pins on the key switch from current and prevent them from being shorted. A diode lets current 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.

Some of the tools available at auto parts stores -- such as the Autel MaxiIM IM608 PRO and IM508 -- may assist customers at the shop or DIY customers in certain cases create replacement keys and restore lost immobilizer information, Sanabria says. The tools connect to the OBD port and automatically guide the customer through the procedure, making it simpler than replacing the computer inside the vehicle.

Jumpstarting the battery

A majority of people keep a set in their trunks to jump-start a vehicle in the event of an emergency, but this might not be a good idea for vehicles that are newer. These vehicles have many electronic devices and computers that communicate with one another. A surge of voltage when the battery is connected to another one could cause damage to the parts, rendering your car undriveable.

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

Once the cables are connected, you need to begin the car and let it run for about five minutes. Then disconnect them in reverse. The battery in the Saab 9-3 will charge as you drive. It will take some time for it to recharge again. It's a good idea to purchase a spare fob as soon as you can, since replacing the one that works requires the installation of a brand new computer module and special programming to convince it that the lost keys aren't attempting to steal the car.

Replacement case

Many Saab owners have only one key for their car and if they lose it, the cost will be. The reason for this is that it's expensive to purchase a new key, and it requires replacing the CIM (Column Integration Module) or TWICE on older models, and programming. It's best to have a spare key in the event of theft or other disaster, and the best way is to buy an extra key as soon as you can. But don't buy a used key even if it's "new." Claimed-new keys from aftermarket sellers will not work and are almost guaranteed to fail at the crucial moment.

Most locksmiths can't help you if you have only one working key and the dealer will charge you top dollar to replace the computer in your car to create a replacement. However, we can reset and reprogram the computer's EEPROM in order to prepare it to accept the new key, without replacing the entire system. This can save you a lot of money. It's cheaper to do this than waiting until you lose the sole key.