20 Things You Should Be Educated About Saab Ignition Key Replacement
Saab Key Programming
Saab cars made since 1994 have an immobilizer system made up of coded keys. A new transponder is required to allow the addition of a second key, and special programming. This is usually done at the dealer with a specialized Tech2 diagnostic tool.
It can be costly. It is always advisable to keep an extra set of keys available.
Transponder key
The transponder keys are keys with an electronic chip that sends a signal back to the car when it is put into the ignition. The car then examines the signal to see whether it is identical to that of the key. If both signals match, the car will unlock itself and start. This is a great way to safeguard your car from theft.
Transponder keys may be an increasingly popular feature for automobiles, but they are not as safe as traditional metal keys. While the metal component of a traditional key may be cut and copied however, a transponder is secured by an electronic chip. This chip contains a unique code that is programmed into the car's computers to identify it.
The car will recognize the Saab keyfob, and allow it to turn on. However, it can only do so if the key fob has an unmodified chip that has been programmed to match the original. The car will not start if the key is not programmed to match.
It is essential to have a spare Saab key. This is particularly important if you reside in a rural region that has numerous car thieves. The good news is that it's possible to find a replacement key to your Saab without needing to visit a dealership and pay the high costs that they demand. You can get a replacement key created on the spot for less than half what you would spend at an auto dealer.
Wired key
Saab cars are usually provided with two keys. If you only have one, it is an ideal idea to purchase an extra key fob as quickly as you can, because if you lose it the car will require the replacement of a CIM unit, and the locking cylinders will need to be replaced. This can be expensive particularly for used cars.
The next step is to connect the wires for columns and rows to your microcontroller. This is the toughest part of the project, and it will require lots of soldering. There isn't a standard way to accomplish this, but it is crucial to plan the routes you'll use to solder the columns and rows. There are 22 microcontroller wires as well as pins to connect for this keyboard. It includes 5 rows and 17 columns.
After the columns and rows are soldered, it's time to connect them to key switches. To do this, you need to place a diode over each pin on the key switch and solder it. This will protect the pins on the key switch from current and keep them from being shorted. A diode only allows current to flow in one direction, and it also has a a black band visual indicator that indicates the direction in which current will flow.
Some of the tools available at auto parts stores -- such as the Autel MaxiIM IM608 PRO and IM508 -- can help shop customers or even DIY customers in some cases replace keys in the program and restore lost immobilizer data Sanabria says. The tools plug into OBD ports and guide the customer through each step, making the process easier than replacing the vehicle's computer.
Jump starting the battery
A lot of people keep a set of jumper cables in their trunks for emergencies however, jumping a battery in newer vehicles may not be the most efficient option. They have numerous digital and computer systems that communicate with each other. A voltage spike when the battery is connected to another can fry these components and leave your vehicle 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 of the battery that is good. (It will say "POS" or "+".) Attach the other end of the black cable to an unpainted, clean metal surface underneath the disabled car's hood. lost saab key The Keylab would be an ideal choice. Don't connect the black cable to the negative terminal of the dead battery as it could ignite an ignition spark that ignites the gasoline in the engine bay.
Once the cables are connected, you should begin the car and let it run for about five minutes. Then disconnect the cables in reverse. The battery in your Saab 9-3 will recharge while you drive. It takes a while for it to return to its original state. It is recommended to purchase another key fob when you can. Replacing the one that works requires the installation and programming of a brand new computer chip.
Replacement case
Saab owners typically only have one car key, and if it is lost, they'll be charged. The reason for this is that it's costly to purchase a new key, and it involves replacing the CIM (Column Integration Module) or TWICE on older models, plus programming. In the event of theft or any other catastrophe it is best to have a spare key. Even when the key is "new" it won't work.
The dealer will charge the highest dollar if you have only one working key. However, we can reset and re-program the computer's EEPROM in order to prepare it to accept an alternative key without replacing the whole system. This can save you a significant amount of money. It's also a lot cheaper than waiting until you lose your one key.