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Checking Fuel Pump Operation Using Toyota Hand-Held Tester (Celica, Corolla, ECHO, Highlander, MR2, Matrix, Prius & RAV4)

WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 2003 Toyota Tacoma, 2003 Toyota RAV4, 2003 Toyota Prius, 2003 Toyota Matrix, and 2003 Toyota MR2. However, it is still accessible from the selected car via links, so may be relevant.
WARNING: On Prius, read service precautions before proceeding with service procedure. See SERVICE PRECAUTIONS .
  1. Connect hand-held tester to data link connector No. 3 at driver's side of instrument panel. See Fig 3-Fig 9 . Turn ignition on. DO NOT start engine.
  2. Turn hand-held tester on. Select ACTIVE TEST MODE on hand-held tester. Using hand-held tester manufacturer's instructions, operate fuel pump. Listen for fuel pump operating sound and feel for fuel pressure in fuel inlet pipe at end of fuel rail. Turn ignition off. Remove hand-held tester. If fuel pump operates, check fuel pressure. See FUEL PRESSURE .
  3. If fuel pump does not operate, EFI main relay or circuit opening relay may be defective. For relay application and explanation of relay operation, see FUEL PUMP CONTROL CIRCUIT . For testing of EFI main relay or circuit opening relay, see appropriate relay under MODULES, MOTORS, RELAYS & SOLENOIDS in SYSTEM & COMPONENT TESTING - 4-CYLINDER article.
  4. If relays are okay, check for defective fuses, fusible links or wiring. See appropriate SYSTEM WIRING DIAGRAMS article in ELECTRICAL. If fuses, fusible links and wiring are okay, check for defective fuel pump. See CHECKING FUEL PUMP OPERATION BY APPLYING BATTERY VOLTAGE TO FUEL PUMP (CAMRY SOLARA, CELICA, COROLLA, ECHO, HIGHLANDER, MR2, MATRIX, PRIUS, RAV4 & TACOMA) . If fuel pump operates properly, Engine Control Module (ECM) may be defective.
    NOTE: For additional testing information for fuel pump control circuit, see FUEL PUMP CONTROL CIRCUIT under COMPUTERIZED ENGINE CONTROLS in SYSTEM & COMPONENT TESTING - 4-CYLINDER article.
Fig 1: Locating Data Link Connector No. 3 (Camry)
G00025452Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Locating Data Link Connector No. 3 (Camry Solara)
G99J08029Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 3: Locating Data Link Connector No. 3 (Celica)
G99B52820Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 4: Locating Data Link Connector No. 3 (Corolla & Matrix)
G97I28868Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 5: Locating Data Link Connector No. 3 (ECHO)
G99E52823Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 6: Locating Data Link Connector No. 3 (Highlander)
G00016690Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 7: Locating Data Link Connector No. 3 (MR2)
G00016686Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 8: Locating Data Link Connector No. 3 (Prius)
G00016681Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 9: Locating Data Link Connector No. 3 (RAV4)
G00016677Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 10: Locating Data Link Connector No. 3 (Tacoma)
G97E28872Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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