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Home >> Lexus >> 2008 >> GS 460 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (1UR-FSE) - Circuit Tests And Repair Information >> Fuel Pump Relay >> On-Vehicle Inspection

On-Vehicle Inspection

  1. REMOVE COOL AIR INTAKE DUCT SEAL  (See REMOVAL )
  2. REMOVE ENGINE ROOM SIDE COVER LH  (See REMOVAL )
  3. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    NOTE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See INITIALIZATION ).
  4. REMOVE FUEL PUMP RELAY (F/PMP) 
    1. Remove the fuel pump relay from the engine room No. 2 relay block.
  5. INSPECT FUEL PUMP RELAY 
    1. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTIONS SPECIFIED CONDITIONS CHART

      Tester Connection Condition Specified Condition
      3 - 4 when no battery voltage is applied to terminals 1 and 2 Below 1 Ω
      3 - 4 when battery voltage Is applied to terminals 1 and 2 10 kΩ or higher

      If the result is not as specified, replace the relay.

      Fig 1: Fuel Pump Relay Circuit Diagram
      G04943129Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. INSTALL FUEL PUMP RELAY 
  7. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL 
    NOTE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See INITIALIZATION ).
  8. INSTALL ENGINE ROOM SIDE COVER LH  (See INSTALLATION )
  9. INSTALL COOL AIR INTAKE DUCT SEAL  (See INSTALLATION )
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