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5 Killer Quora Answers To Saab Ignition Key Replacement
Saab Key Programming

Saab cars manufactured since 1994 use an immobilizer that relies on a set of keys. The addition of a key requires a new transponder, as well as special programming. This is usually done by the dealer using the Tech2 diagnostic tool.

It can be costly. This is why you should always keep a spare key in your possession.

Transponder key

The transponder key is a key equipped with an electronic chip. It sends a signal back to the car when it is inserted into the ignition. The car then analyzes the signal to determine whether it matches the one on the key. If the signals match the car will then unlock itself and start. This is a fantastic way to guard your car against theft.

Transponder keys are an increasingly popular feature for cars, but they are not as secure as traditional keys made of metal. The metal portion of a traditional key can be easily cut and copied, whereas a transponder has an electronic chip which protects it. The chip contains a unique code that is programmed into the car's computer in order to identify it.

When a Saab key fob is used, the car recognizes it and allows it to turn on. The car can only recognize the key fob if it is equipped with a chip that is unmodified and programmed to match. The car won't start in the event that the key has not been programmed to match.

It is essential to have an extra Saab key. saab 93 key fob replacement thekeylab.co.uk is especially true if you live in a rural area where there are many car thieves. The good part is that you can find a new key for your Saab without having to go to a dealership and pay the hefty prices that they ask. In most cases, you can have a brand new key made right on the spot at a fraction of the cost of what you'd pay at an auto dealer.

Wired key

Saab cars usually come with two keys when they are new. If you have only one, you should purchase an additional key as quickly as you can. This is because if it's lost the car will require an entirely new CIM and the locking cylinders replaced. This can be costly especially for used vehicles.

The next step is to connect the wires for the column and row to the microcontroller. This is the most difficult part of the project, and it will require a lot of soldering. There is no standard method to do this, but it's important to plan out the way you'll route and solder the rows and columns. For this keyboard, there are 5 rows and 17 columns, so there will be 22 microcontroller pins and wires to connect.

After the columns and rows are joined after which it is time to connect the key switches. Solder a diode to each key switch pin. This will protect the pins from current and prevent them from being shorted. A diode allows current to only flow in one direction. It comes with a visual indicator, a black band, that indicates which direction current will flow.


Sanabria says that a few of the tools available in auto parts stores, including the Autel MaxiIM IM608PRO and IM508 will assist customers who are shopping or DIY customers to program replacement keys and restore immobilizer data. The tools plug into OBD ports and help the customer through each step and make the process more straightforward than replacing the car's computer.

Jump starting the battery

A majority of people keep a set in their trunks to start a vehicle in the event of an emergency, but it might not be a good idea for newer cars. They have numerous computers and digital devices that communicate with one another. A surge of voltage when the battery is connected another one could cause damage to the parts and render your vehicle unusable.

Start the vehicle that is working and allow it to run for around two minutes before you connect the cables to the battery that is not working. 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 a clean, unpainted metal surface under the disabled car's hood--the engine block is a good choice. The black cable should not be connected to the negative terminal of the dead battery. This could create a spark, which would ignite the gasoline in the engine compartment.

Once the cables are connected, turn on the vehicle you are not using and let it run for approximately five minutes before disconnecting the cables in reverse order. The battery in your Saab 9-3 will recharge while you drive. It takes a while for it to recharge again. It is recommended to purchase a second key fob, as soon as you can. Replacing the original one that works requires the installation and programming of a brand new computer chip.

Replacement case

Many Saab owners only have one key for their vehicle and if they lose it, it's going to cost them. It's costly to add a key and requires replacing the CIM or TWICE for older models. In the event of theft or other catastrophe it is best to have an extra key. Even even if the key is "new", it will not function.

The dealer will charge you top dollar if you only have one working key. We can reset and reprogram the computer's EEEPROM to get it ready to accept a new key without having to replace the entire system. This could save you a great deal of money. It's more affordable than waiting until you loose the only key.

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