The Saab Ignition Key Replacement Success Story You'll Never Remember
Saab Key Programming
Saab cars built from 1994 have an immobilizer system that relies on coded keys. A new transponder is required in order to enable the addition of an additional key, as well as special programming. This is usually done by the dealer using a Tech2 diagnostic tool.
The issue is that it can be quite costly. This is why it is important to always have a spare key at hand.
Transponder key
The transponder can be described as a key with an electronic chip. This chip sends out a signal when the key is put into the ignition. The car then analyzes the signal to see whether it is the same as the one in the key. If both signals match the car will be able to unlock itself and start. This is a great way to deter car theft and keep your car safe from thieves.
Transponder keys are an increasingly popular feature in automobiles, but it is important to know that they are not as secure as traditional metal keys. While the metal portion of a conventional key can be cut and copied but a transponder key is protected by an electronic chip. This chip has a unique code that is 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. But, it's only able to do this if the fob is equipped with a chip that is not modified that has been programmed to match. The car won't 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 area that is home to numerous car thieves. The good thing is that you can find a new key for your Saab without needing to visit a dealer and pay the hefty prices that they demand. In the majority of cases, you can have a brand new key made right on the spot at a fraction of the cost of what you would pay at the dealer.
Wired key
Saab cars typically come with two keys when they are new. If you own only one, it is recommended to get an additional key as fast as you can. Read Alot more is because if you lose it and the car is damaged, it will require an entirely new CIM and the locking cylinders replaced. This can be costly particularly if you are purchasing a used vehicle.
The next step is to connect the column and row wires to the microcontroller. This is the most difficult part of the project and requires a significant amount of soldering. There is no standardized way to accomplish this, however it is essential to determine 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 5 rows and 17 column.
After the rows and column 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, preventing them from being shortened. A diode permits current to only flow in one direction. It has a visual indicator that is black, that shows which way current will flow.
Some of the tools offered at auto parts stores -like the Autel MaxiIM IM608 Pro and IM508 -- could help shop customers or even DIY customers in certain cases replace keys in the program and restore lost immobilizer data, Sanabria says. The tools plug into the OBD port and guide the user through the process, making it easier than replacing the computer inside the vehicle.
Jumpstarting the battery
Most people keep a few sets of jumper cables in their trunks in case of emergency however, jumping a battery in newer vehicles may not be the best idea. These cars have a variety of electronic devices and computers that communicate with each other. A surge in voltage while a battery is hooked up to another battery could fry these components, rendering your car unable to drive.
Connect the cables to the vehicle operating. Let it run for two minutes. 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 to a clean unpainted metal surface beneath the hood of your disabled car. The engine block is a good option. Do not connect the black cable to the negative terminal on the dead battery as this could trigger a spark that ignites the gasoline in the engine bay.
After the cables have been connected, you need to begin the car and let it run for approximately five minutes. Then disconnect the cables in reverse. The battery in your Saab 9-3 will be recharged as you drive. It will take a while for it to return to its original state. You should purchase an additional key fob as soon as possible. Replacing the one that works requires the installation and programming of a new computer chip.
Replacement case
Saab owners usually have only one car key, and if it is lost, they will be charged. It's expensive to add the key and also requires replacing the CIM or TWICE in the case of older models. In the event of theft, or any other catastrophe it is recommended to have an extra key. Don't purchase a used key, even if it's "new." Keys that are claimed as new from aftermarket sellers will not perform and are almost certain to fail in the most critical moment.
The dealer will charge you the highest dollars if you only have one working key. We can reset and reprogram the computer's EEEPROM in order to be able to accept a replacement key without the need to replace the entire system. That can help you save money. It's also much less expensive than waiting until you lose your only key.