System Description

FUEL LID OPENER COMPONENT

FUEL LID OPENER SYSTEM DESCRIPTION

Fuel Lid Opener Switch	Detects fuel lid opener switch operation and sends fuel lid open request signal to hybrid vehicle control ECU.
Fuel Lid Courtesy Switch	The fuel lid courtesy switch detects the fuel lid open/close condition signal to hybrid vehicle control ECU.
Fuel Lid Opener Motor Assembly	Actuates to open fuel lid according to signal from hybrid vehicle control ECU.
Hybrid Vehicle Control ECU	When the hybrid vehicle control ECU receives signal from the fuel lid opener switch, it actuates the fuel lid opener motor. Receives signal from fuel tank pressure sensor. When difference between atmospheric pressure and fuel tank internal pressure exceeds specification, hybrid vehicle control ECU operates fuel vapor containment valve. Detects status of fuel lid courtesy switch.
Combination Meter (Multi-information Display)	The operating state of fuel lid opener system is displayed on the multi-information display.

FUEL LID OPENER SYSTEM FUNCTION
1. When pressing the fuel lid opener switch, a fuel lid open request signal is sent to the hybrid control ECU, and the fuel lid opener motor actuates to open the fuel lid.
  HINT:
  
  When the difference between atmospheric pressure and fuel tank internal pressure exceeds the specification, fuel vapor containment valve is used to adjust the pressure. During the adjustment, "PLEASE WAIT NOW OPENING" is displayed on the multi-information display.
  NOTE:
  - If the fuel tank pressure sensor or fuel vapor containment valve is malfunctioning, the fuel lid does not open.
  - If the fuel lid courtesy switch is malfunctioning, "CLOSE FUEL LID" is displayed on the multi-information display even if the fuel lid is closed.
    
    Fig 1: Fuel Lid Opener Function Diagram (1 Of 2)
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    
    Fig 2: Fuel Lid Opener Function Diagram (2 Of 2)
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  1. Normal operation (Fuel tank pressure 4 kPa or more):
    
    Fig 3: Identifying Fuel Tank Pressure Graph
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. Normal operation (Fuel tank pressure less than 4kPa)
    
    Fig 4: Identifying Fuel Tank Pressure Graph
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

COMBINATION METER DISPLAY AND OBJECTIVES

Multi-information display:

Fig 5: Combination Meter Display

G05205406

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

COMBINATION METER DISPLAY AND MULTI-INFORMATION

Display	Details	Condition	Condition to switch to next display	Next display
PLEASE WAIT NOW OPENING	Wait time until the fuel tank pressure drops to the specified value Wait time until the fuel lid is opened	Fuel lid opener switch ON Fuel vapor containment valve open Fuel tank pressure 4 kPa or more (Initial value)	Fuel tank pressure less than 1.76 kPa	REFUEL READY
REFUEL READY	Ready for refueling	Until any of the conditions listed on the right are met.	When 5 seconds or more elapse after fuel lid CLOSE (Fuel lid courtesy switch ON)	OFF
REFUEL READY	Ready for refueling	Until any of the conditions listed on the right are met.	The fuel vapor containment valve remains ON for 30 min. The vehicle is driven for 1 km or more at 50 km/h or more	CLOSE FUEL LID
CLOSE FUEL LID	Fuel lid open	Fuel lid open: While the ignition switch is on For 5 min. after the ignition switch is turned off	Fuel lid CLOSE (Door control switch ON)	OFF