Fuel Pump On-Vehicle Inspection

WARNING: When fuel filler cap is removed in any procedure, work must be done in a well-ventilated area, keep away from any open flames and without smoking.




1. Remove filler cap and turn ON ignition switch. Then fuel pump operating sound should be heard from fuel filler for about 2 seconds and stop. Be sure to reinstall fuel filler cap after checking.
If above check result is not satisfactory, advance to "Diagnostic Flow Table B-2" under Computers/Testing/Non-Trouble Code Diagnostic Procedures.




2. Fuel pressure should be felt at fuel return hose for 2 seconds after ignition switch ON.
If fuel pressure is not felt, advance to "Diagnostic Flow Table B-3" under Computers/Testing/Non-Trouble Code Diagnostic Procedures.