Fuel Pump Control Circuit: Prius

WARNING: On Prius, read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS .

NOTE: Manufacturer does not supply circuit diagram for fuel pump control circuit.

For fuel pump control circuit inspection and wiring diagram, see Fig 1-Fig 5 . Before replacing ECM, check ECM connectors and ground circuits. See ENGINE CONTROL MODULE POWER & GROUND CIRCUITS .

Fig 1: Fuel Pump Control Circuit Description & Diagram (Prius)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 2: Fuel Pump Control Circuit Inspection Using Toyota Hand-Held Tester - Steps 1-4 (Prius)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Fig 3: Fuel Pump Control Circuit Inspection Using Toyota Hand-Held Tester - Step 4 Cont. & Steps 5-6 (Prius)

Fig 4: Fuel Pump Control Circuit Inspection Using OBD II Scan Tool - Steps 1-3 (Prius)

Fig 5: Fuel Pump Control Circuit Inspection Using OBD II Scan Tool - Steps 4-6 (Prius)