Check Main Relay

Turn the ignition switch to OFF.

Remove the main relay.

Connect the battery to main relay terminals No. 1 and No. 2.

Measure the resistance between main relay terminals.

Terminals 

No. 3 - No. 5: 

No. 4 - No. 6: 

Is the measured value less than 10 O? 

YES. Go to  CHECK GROUND CIRCUIT OF ECM  . 

NO 

Replace the main relay.