We put in a brand new ignition switch in our 2003 chevy impala and the car will not start when we try to crank it the security lights justs flash what can we do.
After you replace the ignition switch turn the key to start the car and release leave the key were it stops after trying to start wait 10 minutes until security light goes out turn key to full off position then repeat the above procedure two more times for a total of three on the 3rd attempt to start car wait for light to go out then turn key to full off positoion wait 10 seconds then try to start car body control module should learn new pass code and the car should start.
Big john, J@J Automotive
Thank You I will try this Solution .
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First turn switch off.make sure battery is fully charged.then crank the engine .it might start for1 or 2 second then shut of do not turn the key off after engine turns off ,leave the key on till security light goes off or glows steady.then try to start .you may have to wait 10 to 15 minutes after leaving the key to on posisison.
Tempory fix is to relearn security sensor (passlock sensor) will need to replace ignition clinder
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