Question about 2002 Hyundai Santa Fe

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IMMOBILISER WITH KEY IN IGNITION THE IMMOBILISER KEY ON DASH WONT GO OUT,VEHICLE WONT START

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  • Anonymous Mar 22, 2014

    my car keys wont start the vehicle what should i do?

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The key has a micro chip in it that transmits a signal/code to the anti-theft module/immobilizer. There have been cases where the immobiler/module has forgotten wht code it should respond to or the chip in the key has gone bad. Either way the vehicle will have to go to the dealer for repair as they will have to reprogram the immobilizer for the new key and vice versa depending on which of the 2 items went bad. Hope this helps u

Posted on Jul 17, 2009

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Posted on Jan 02, 2017

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How does the ignition interlock work on the mazda mpv 2003 ? I can't start the car without the remote control : Simply turning the key will not even crank, does nothing.


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Alternatively, when the key is in the ignition - press the remote unlock again.

The remote acts as an immobiliser device. The reason your car won't start on the key is probably because the system won't allow any key in the ignition - it is preventing theft of the vehicle. Once the unlock button on the remote is pressed the system then recognises that key is the legitimate one for the vehicle and the disables the immobiliser and allows you to start the car

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It sounds like the vehicle lost its programming or immobiliser settings. When you replace the module, not only does it need to be programmed or "coded" to the vehicle, the security/immobiliser also needs to be "opened". Finally you MUST MUST MUST use the original master key when starting the vehicle after the fix. If you arent using the master key OR if the battery is low, AT ALL, the sync between, vehicle, computer and programming wont take. Any other lights on the dash? any codes? if it is simply the key, try disconnecting the battery (or completely pulling it out to charge it) then putting it all back in and use the master key to start the car. i recommend putting the key to the "on position" for about 15 seconds before starting, crank it up, let it warm up, then drive at a low rate of speed thru all the shift cycles, to relearn PCM to vehicle and vice versa

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Sorry this vehicle has a chipped key and as such you cannot just hot wire it like something out of the dukes of hazard ,the immobiliser will not allow the vehicle to start

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Hi There.
it may be the immobiliser,,, and then it may be that you need the ignition key code and/or ECU that goes with that particular model

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First: alarm went off on its own.(mazda 6 2003). Now when locking and unlocking car sometimes indicators flash and sometimes not. Now red immobaliser light is flashing on dash when driving, then stops...


there is often a small back up battery in the immobiliser unit itself, if you can locate this unit and replace the battery with the ignition on / engine running, then it should not need recoding and work fine after that. The other thing that could be wrong is the key battery (if the fob has one) or the transponder chip in the key head. If the key signal is low the immobiliser lamp will light during driving, but this does not explain the alarm going off. That is more likely either a poor vehicle battery, alarm / immobiliser back up battery, or another electrical fault such as water leakage into a tail-light or even the alarm unit itself when it rains. A lot of alarms are voltage sensing and when the vehicle is parked they will alarm if the battery voltage changes for any reason, though not during driving so the battery in the immob is my first choice to look at.

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Interesting problem.. since not US spec. Is there a 'remote keyless (fob)' programmed for this vehicle? That's the only way to DE-arm the immobilizer (anti-theft) feature (based on US specs). Unless you have this key fob (keyless entry remote... which must also be programmed for this vehicle), the only other way is wait 5 minutes with the existing key in the ignition, then it should start (US specs). You will still need to have an 'ACTIVE' keyless remote programmed for this vehicle... otherwise, you'll continue to run into this problem.

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There is a way to override the code, however you need the code number. The only other way is to sit in car with door shut, play with the central locking button on dash, locking and unlocking. While doing this occassionally turn the ignition on and off. If you do it long enough, you may find the immobiliser light goes out, if it does, quickly start the car.

TL

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1 Answer

Wont start


Hi
Had a similar problem with my x type 2.5 petrol, only had the car 1 day went to start it nothing happend all the lights came up on the dash but the engine wouldn't start and the immobiliser light stayed on. Spoke to Jaguar they had no idea and I couldn't get it to them. After disconnecting the battery trying to reset the immobiliser phoned and auto locksmith they came out and discovered the end of the key with the blade had lost it's coding and the immobiliser was not disarming, they reprogrammed the key and the car started no problem. As far as i know there is no way past the immobiliser. Hope this helps.

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