Fuel Pump Control Unit - Testing and Inspection - Component Information
Circuit Open/Short Inspection
Inspect the following wiring harnesses for an open or short circuit (continuity check).
Open circuit
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If there is no continuity, the circuit is open. Repair or replace the harness.
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Fuel pump unit terminal B and fuel pump relay terminal C
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Fuel pump unit terminal D and body ground
Short circuit
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If there is continuity, the circuit is short. Repair or replace the harness.
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Fuel pump unit terminal A and body ground
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Fuel pump unit terminal E and power supply
Fuel Static Pressure Inspection
NOTE: The fuel static pressure inspection cannot be performed because the pressure regulator is integrated with the fuel pump unit.