Seat Alhambra Key Problems

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There are a variety of reasons why your key fob may not function correctly, including dead battery, water damage, receiver module issues or signal interference. This article will walk you through the steps necessary to get it working.

Water Damage

If your key fob for the seat alhambra can withstand washing cycles or dip in the water or a pool, it's equipped with a waterproof chip. However, don't do it often, as prolonged exposure to water can increase the likelihood of the key fob being damaged. If the key fob stops working after exposure to clean tap water or rain, just take out the battery, wipe the electronic component with a towel and allow it to dry completely before putting the battery back in. If the key fob has been exposed to salty or soapy water it is recommended that you clean the chip using isopropyl or electronic cleaner.

Faulty Receiver Module

If you've tried the battery of a button cell and the key fob doesn't lock or unlock then it's likely the receiver module has been faulty. The good news is that it is a relatively simple and inexpensive repair, you can remove the battery 12 volts for a few minutes (first take off the negative cable then press the horn button a few times) to remove any remaining electric current, then reconnect it in reverse order e.g. Positive first, then negative.

ESP Warning Light If the ESP warning light flashes, this is normal and signifies that the car is travelling over terrain that has traction issues between the road surface and the tyres is not ideal such as snow, gravel or lots of surface water. If the ESP light is constantly on, it is a sign that there is a problem with the system. This can be diagnosed with a iCarsoft i908 seat OBD code reader kit. It will provide the full description of the problem.

Dead Coin Battery

A dead battery for the coin is one of the most common causes for the seat alhambra keys to cease to function. The key fob is powered by tiny button cell batteries which keeps it powered. It is recommended to replace it with a new one that has the same size, voltage and specifications as the original. If you're replacing your battery, be sure to remove all metal clips from the back of the key fob. Also, make sure that the contact points are free of corrosion.

If the key fob was exposed to water, like soapy or rain it is recommended to remove the battery and clean the electronic chip using alcohol or an electronic cleaner before putting in the new battery. The chip may be permanently damaged by moisture. If the key fob is still not working after replacing the battery, it could be necessary to replace the entire key fob.

Faulty Receiver Module

If your key fob stopped working after replacing the battery, but it did not help, or it just stopped working suddenly the receiver module could have developed an issue. The receiver module receives the radio frequency signals from the remote keyfob and converts them into electrical commands which are then acted upon by other modules within the car.

If the receiver module is faulty it will not take any commands from your remote key fob. In this scenario, a dealer will need to reprogramme the key fob, and also install an entirely new receiver.

The key fob is covered with rubber to prevent water from getting into the electronic chip. If you submerge the key fob in salty or soapy water it could cause damage to the chip. If your key fob won't work, you can try cleaning the chip with isopropyl or an electronic cleaner.

If the keys are paired but the receiver module has developed a fault, you can try rebooting all of the onboard electronics by removing the 12 volt battery for a short period of time. Then reconnect the battery in reverse order (negative cable first before positive). This will reset the onboard electronic and restore their functionality.

Faulty Electronic Chip

The key fob comes with a tiny chip which transmits a signal from the key to the receiver module every time the key is used. If this signal does not match the one stored by the car, the immobilizer will disable the engine and prevent the vehicle from beginning. If the key fob isn't working, and you can't reprogram it, it could be due a damaged chip.

The chip inside the key fob isn't a permanent part of the device and might have to be replaced to make it work again. The best method to do this is by removing the key from its housing and then using a pin needle to get into contact with each of the metal clips that hold it. If these are corroded or broken, you will require replacement in order for the remote control to function. Make sure that the replacement batteries have the same size, voltage, and specification as the original.