Question about 2004 Proton Gen-2
Inertia switch is only relevant when you have a collision and the engien does not start. Fuel pump may not run and coils no spark. If not, same thing could also happen if the immobilizer is not disabled or the key FOB gets damaged. The ignition key has an RFID chip in it and if you drop your key or remove this chip, the car will not recognize the key and wont start. You need to use your spare key from then on.
Posted on Jun 12, 2014
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Posted on Jan 02, 2017
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1 Inertia switch activated
2 Throttle Limp Home mode
3 Engine starts and stumbles
4 Engine fail to start
5 Engine stall
If none of the five conditions occur, check: Inertia switch to ECM circuit:
short circuit to B+ voltage Inertia switch failure
You can check the Inertia switch status on the Instrument cluster Diagnosis, see http://www.bluejag.co.uk
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