2001 Seicento SX won't start, the key light symbol on the dash does not come on. It is a second gen immobilizer with only the blue key. The battery is fully charged and I have checked all the fuses.
When I turn the key the diagnostics lights for airbag, engine, fuel light all come on, but the key symbol does not. The fuel pump runs. When I trun the last click, the engine turns but won't fire up. same as being immobilzed.
if the code light is not coming on when you first switch on the ignition i would tened too suspect the code ecu being the problem. off the top of my head i cant remember what a code2 ecu looks like or where it is located :( first thing too do is locate the ecu and test for a feed and earth, if thats good then i would probly try for a new ecu.
The blue key does not have a battery as far as Iam aware, just an id chip, I don't see any way to open the key.
The ecu is probably the issue here, but like you I don't know where it is. The battery in the car was flat when I first got it and I put a new battery into it, it started a number of time and I had taken it on a 50 mile journey. I was working on the interior of the car one day and I think some on got into the car and accdentily hit the interior light on, this flattened the new battery. I tried to jump start it, but that failed . When I recharged the battery I still couldn't start it.
Iam wondering if the battery going flat cause the ecu to screw up?? Its strange cause all other checks on the engine work fine.
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