I've got a 2006 Mazda 6 that has never had a problem. It's bone stock.
Today, when I went out to start it, it would crank, but not start.
It is cranking strongly - the battery is fully charged, and the battery is only about a month old.
While it is cranking, the security (car with key) light is flashing, and I can hear a relay clicking at the same time as it is flashing. This points me to immobilizer.
However, if the immobilizer is activated, I believe it should not crank at all.
I can insert the key and turn it to ON, the security light turns on, then turns off completely, as it normally does. As soon as I turn to START, the engine begins to crank, and the security light starts flashing.
The same thing happens with both keys.
I have tried disconnecting the battery and shorting battery leads together to clear anything in the ECM, with no effect. I have tried charging the battery to ensure it is fully charged.
I made a video of the car cranking and not starting:
Just as a side note, in case it matters, it is 30 degrees F (-1C) outside.
I also hooked up a code reader to the OBDII port, there were no codes. I tried clearing codes anyway, with no change.
Anyone have any suggestions as to what step I should take next?
Today, when I went out to start it, it would crank, but not start.
It is cranking strongly - the battery is fully charged, and the battery is only about a month old.
While it is cranking, the security (car with key) light is flashing, and I can hear a relay clicking at the same time as it is flashing. This points me to immobilizer.
However, if the immobilizer is activated, I believe it should not crank at all.
I can insert the key and turn it to ON, the security light turns on, then turns off completely, as it normally does. As soon as I turn to START, the engine begins to crank, and the security light starts flashing.
The same thing happens with both keys.
I have tried disconnecting the battery and shorting battery leads together to clear anything in the ECM, with no effect. I have tried charging the battery to ensure it is fully charged.
I made a video of the car cranking and not starting:
Just as a side note, in case it matters, it is 30 degrees F (-1C) outside.
I also hooked up a code reader to the OBDII port, there were no codes. I tried clearing codes anyway, with no change.
Anyone have any suggestions as to what step I should take next?