2009 Toyota Corolla starts for a few seconds then cuts out

[Cornelius stacey]

Hello,

Have a 2009 Toyota Corolla that was running but will now turn over but not start!Have checked for fuel pump failure ,computer failure,crankcase positioning failure,camshaft position failure.changed out with new aftermarket with no luck.Checked all possible ground connections,fuses all ok.Have been able to diagnose to power to fuel pump for a few seconds on crank.this causes start for a few seconds .have fuel pump wiring diagram but unable to locate fuel pump relay(closed/open relay)anywhere on car.Have an OBD reader but there is a communication problem ,removed wiring connectors one at a time to tighten connection with no success.Thinking I may have put one of the connectors in wrong place on OBD but am unable to verify. Would anyone have a picture or a wiring diagram of a 2009 corolla 2zrfe engine.attaching photo of OBD connector on my car for reference

Thanks

[oldcodger]

Hi,

On our UK Corollas, up to 2007, the Fuel Pump is controlled by the C/OPN relay which is located in under the dashboard .

Lots of OBD socket data  on the web showing what the pins can be used for  but not seen any wiring / wire colours for the Corolla .

Might it be better to prove your Reader is working by connecting it to another car ?