Understanding the key and key fob system in your 1998 Volvo S70 is crucial for key replacement or adding extra remotes. This model year utilizes transponder keys and keyless entry fobs that require a specific programming procedure. Here’s a breakdown of what you need to know about managing your 1998 Volvo S70 keys and key fobs.
Decoding Your 1998 Volvo S70 Key System
The 1998 Volvo S70 keys are equipped with coded transponders. These transponders are unique to each key and are essential for starting your vehicle. The immobilizer unit in your S70 can recognize and store up to three different keys. Programming these keys into your car’s system is necessary for them to function correctly. This process isn’t about coding the key itself, but rather registering it with your car’s immobilizer.
To program new keys, access to a PIN is required to interface with the immobilizer unit. This PIN might be located on the immobilizer unit itself, often found deep under the dashboard. Alternatively, you may be able to obtain it by contacting Volvo directly. It’s important to note that only a Volvo Scan Tool (VST) or similar professional diagnostic tool can access the immobilizer unit for programming. These tools, often used with software like VADIS, are essential for communicating with your Volvo’s electronic systems. Through VST and VADIS, you can potentially download vehicle updates, sometimes available via short-term subscriptions from Volvo. Once connected to the immobilizer unit via VST, each key needs to be inserted into the ignition. The transceiver within the ignition switch tumbler reads each key’s unique code, completing the key programming sequence.
Programming Your 1998 Volvo S70 Keyless Fobs
The procedure for programming keyless entry fobs for your 1998 Volvo S70 closely mirrors the key programming process. Similar to keys, the system can accommodate up to three key fobs. Each fob has a unique coded signal. To program them, you’ll again need to access the immobilizer unit using a Volvo Scan Tool. During the programming sequence, each key fob button must be pressed once within a five-second window. This action transmits the fob’s unique code, which is then recognized and stored by the immobilizer unit.
While it might seem like a quick task, programming Volvo keys and fobs, especially for older models like the 1998 S70, often requires specialized tools and knowledge. Dealerships have these resources, but understanding the process empowers you to explore options and ensure you’re getting the right service for your Volvo.
