Component Inspection
P0231 Fuel Pump Secondary Circuit Low
Inspection/Repair - Component Inspection
Component Inspection
Injector check
1. IG KEY "OFF".
2. Disconnect fuel pump relay.
3. Measure the resistance between power from battery terminal and power to pump relay terminal of fuel pump relay (component side).
4. Measure the resistance between Power from main relay terminal and control terminal of fuel pump relay (component side).
Specification : Approx 3.5 V
5. Is the measured resistance within specification?