Fuel Pump Control Circuit: Tacoma

For fuel pump control circuit inspection and wiring diagram, see Fig 1-Fig 8 . To check fuel pump operation, see FUEL DELIVERY  under FUEL SYSTEMS. To check circuit opening relay, see CIRCUIT OPENING RELAY  under MODULES, MOTORS, RELAYS & SOLENOIDS. For circuit identification, see ENGINE PERFORMANCE in appropriate SYSTEM WIRING DIAGRAMS article in ELECTRICAL. Before replacing ECM, check ECM connectors and ground circuits. See ENGINE CONTROL MODULE POWER & GROUND CIRCUITS  under COMPUTERIZED ENGINE CONTROLS.

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

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Fig 2: Fuel Pump Control Circuit Inspection Using Hand-Held Tester - Step 1 (Tacoma)

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Fig 3: Fuel Pump Control Circuit Inspection Using Hand-Held Tester - Steps 2-5 (Tacoma)

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Fig 4: Fuel Pump Control Circuit Inspection Using Hand-Held Tester - Step 6 (Tacoma)

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Fig 5: Fuel Pump Control Circuit Inspection Using OBD II Scan Tool - Step 1 (Tacoma)

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Fig 6: Fuel Pump Control Circuit Inspection Using OBD II Scan Tool - Steps 2-5 (Tacoma)

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Fig 7: Fuel Pump Control Circuit Inspection Using OBD II Scan Tool - Step 6 (Tacoma)

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Fig 8: Fuel Pump Control Circuit Wiring Diagram (Tacoma)

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