Five Killer Quora Answers On Saab Ignition Key Replacement
Saab Key Programming
Saab cars produced since 1994 utilize an immobilizer system based on key codes. A new transponder is required for the inclusion of an additional key, and special programming. This is usually done by the dealer using a Tech2 diagnostic tool.
It can be costly. Always keep a spare set of keys on hand.
Transponder key
The transponder keys are keys with an electronic chip that sends a signal back to the car when it is inserted into ignition. The car will check to see whether the signal is the same as the one on the key. If the signals match the car will then unlock and begin. This is a great way to stop auto theft and keep your car secure from thieves.
Transponder keys are a popular feature in vehicles, but you must be aware that they are not as secure as classic keys made of metal. The metal component of a traditional key can easily be copied and cut, but transponders have an electronic chip that guards it. The chip is equipped with 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 can only recognize the key fob when it has an unmodified chip and programmed to match. The car will not start when the key isn't programmed to match.
It is essential to have an extra Saab key. This is especially true when you live in a rural area where there are numerous car thieves. You can get a brand new key for your Saab by going to the dealership and not paying their expensive cost. In most instances, you can get a brand new key made right on the spot for less than half the cost you would pay at dealerships.
Wired key
Saab cars typically come with two keys upon purchase. If you only own one, you should purchase an additional key as soon as you can. This is because if you lose it the car will require an entirely new CIM and the locking cylinders replaced. This can be costly especially if buying a used car.
The next step is to wire the wires for the column and row to the microcontroller. This is the most tedious part of the project and will require a lot of soldering. There isn't a standard way to accomplish this, however it's important to plan out how you will route and solder the rows and columns. For this keyboard, there are 5 rows and 17 columns, which means there will be 22 microcontroller pins and wires to connect.
After the columns and rows are soldered, it's the time to connect them to the key switches. To do this, place a diode across each pin of the key switch and solder it. This will shield the pins of the key switch from current and prevent them from being shorted. A diode permits current to only flow in only one direction. It comes with a visual indicator with a black band that indicates which direction current will flow.
Sanabria states that a number of the tools available in auto parts stores, such as the Autel MaxiIM IM608PRO or IM508 will assist customers who are shopping or DIY users to program replacement keys and restore immobilizer data. The tools connect to the OBD port and guide the customer through the procedure, making it much easier than replacing the computer inside the vehicle.
Jump-starting the battery
A lot of people keep a set of jumper cables in their trunk in case of emergency, but jumping a battery for newer vehicles might not be the best idea. These vehicles are equipped with a number of computers and digital devices that communicate with one another. A surge in voltage when the battery is connected to another could cause damage to the components and render your vehicle unable to drive.
Connect the cables to the vehicle operating. Let it run for two minutes. Attach the red clip to the positive terminal of the battery that's good. (It will say "POS" or "+".) Attach the other end of the black cable to a clean, unpainted metal surface underneath the car's hood. The engine block is an ideal choice. The black cable should not be connected to the negative terminal of the dead battery. This could create sparks, which could ignite the gasoline inside the engine compartment.
Once the cables are connected, you can start the vehicle you are not using and allow it to run for around five minutes before disconnecting the cables in reverse order. Be aware that the battery of your Saab 9-3 is recharged when you drive, and it will take a while for the battery to go back to normal. It's a good idea purchase a spare fob as soon as you can, because replacing the sole working one requires the installation of a brand new computer module and a special program to convince it that the lost keys are not trying to steal the car.
Replacement Case
Saab owners usually have only one car key, and if that is lost, they'll be charged. It's costly to add keys and will require replacing the CIM or TWICE in the case of older models. In the event of theft, or any other calamity it is best to have an extra key. Even even if the key is "new" it will not function.
The dealer will charge the highest dollar for 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 entire system. That can save you a significant amount of money. saab keys replacement 's also less expensive than waiting until you lose your only key.