RM38T0EC _59 Vehicle Exterior _113746 DOOR / HATCH _0602113 FUEL LID OPENER SYSTEM U

DOOR / HATCH  FUEL LID OPENER SYSTEM  TERMINALS OF ECU  


CHECK ECM


A425145
1.833,0.792 2.281,1.042 0.448,0.25 5.448,0.813 5.896,1.063 0.448,0.25 1.917,0.833 2.375,1.031 0.458,0.198 10 false C141 5.563,0.865 6.021,1.063 0.458,0.198 10 false A47

HINT:

The standard voltage and waveform between each pair of the ECM terminals are shown in the table below. The appropriate conditions for checking each pair of the terminals is also indicated. The result of checks should be compared with the standard voltage and waveform for each pair of the terminals as displayed in the Specified Condition column. The illustration above can be used as a reference to identify the ECM terminal locations.


Terminal No. (Symbol) Terminal Description Condition Specified Condition
A47-31 (LIDO) - A47-10 (E1) Fuel lid lock with motor assembly (fuel lid courtesy switch) signal Fuel lid closed Below 1 V
Fuel lid open 11 to 14 V
A47-38 (FUEL) - A47-10 (E1) Fuel lid opener switch signal Fuel lid opener switch pressed Below 1 V
Fuel lid opener switch not pressed 4.5 to 5.5 V
A47-41 (LSTM) - A47-10 (E1) Fuel lid operation signal for combination meter assembly "Close Fuel Lid" displayed on multi-information display Pulse generation
(see waveform 1)
"Ready to Refuel" displayed on multi-information display Pulse generation
(see waveform 2)
"Please Wait Fuel Door Opening" displayed on multi-information display Pulse generation
(see waveform 3)
Ignition switch ON 11 to 14 V
A47-44 (FREL) - A47-10 (E1) Fuel lid lock with motor assembly operation signal Fuel lid lock with motor assembly operating Below 1 V
Fuel lid lock with motor assembly not operating 11 to 14 V

a.
A375177E03
2.771,0.938 3.323,1.146 0.552,0.208 10 false GND

Using an oscilloscope, check waveform 1.

Waveform 1 (Reference)
Item Content
Terminal No. (Symbol) A47-41 (LSTM) - A47-10 (E1)
Tool Setting 5 V/DIV., 20 ms./DIV.
Condition "Close Fuel Lid" displayed on multi-information display

HINT:

This waveform is output when the fuel lid opener switch is operated if the fuel lid is open and any of the following conditions are met:

·

The vehicle has been driven for 1 km (0.6 mile) or more at a speed of 50 km/h (31 mph) or more.

·

30 minutes or more have elapsed since the fuel lid opener switch was operated.




b.
A375178E03
2.76,0.927 3.333,1.125 0.573,0.198 10 false GND

Using an oscilloscope, check waveform 2.

Waveform 2 (Reference)
Item Content
Terminal No. (Symbol) A47-41 (LSTM) - A47-10 (E1)
Tool Setting 5 V/DIV., 20 ms./DIV.
Condition "Ready to Refuel" displayed on multi-information display


c.
A375176
2.771,0.948 3.354,1.135 0.583,0.188 10 false GND

Using an oscilloscope, check waveform 3.

Waveform 3 (Reference)
Item Content
Terminal No. (Symbol) A47-41 (LSTM) - A47-10 (E1)
Tool Setting 5 V/DIV., 20 ms./DIV.
Condition "Please Wait Now Opening" displayed on multi-information display

HINT:

This waveform is output when the internal pressure of the fuel tank is higher than the ambient pressure when the fuel lid opener switch is operated.




CHECK COMBINATION METER ASSEMBLY


E391347
1.5,0.667 1.917,0.917 0.417,0.25 5.167,0.667 5.583,0.917 0.417,0.25 1.667,0.708 2,0.958 0.333,0.25 10 false I4 5.333,0.708 5.729,0.969 0.396,0.26 10 false I5

Terminal No. (Symbol) Terminal Description Condition Specified Condition
I4-1 (EP) - Body ground Ground Always Below 1 Ω
I4-2 (ES) - Body ground Ground Always Below 1 Ω
I4-5 (B) - Body ground Auxiliary battery Ignition switch off 11 to 14 V
I4-6 (IG+) - Body ground Ignition switch signal Ignition switch off Below 1 V
Ignition switch ON 11 to 14 V
I4-28 (LST1) - Body ground Fuel lid operation signal for combination meter assembly "Refuel Ready" displayed on multi-information display Pulse generation
(see waveform 1)
"Close Fuel Lid" displayed on multi-information display Pulse generation
(see waveform 2)
"Please Wait Now Opening" displayed on multi-information display Pulse generation
(see waveform 3)
Ignition switch ON 11 to 14 V

a.
A375177E03
2.771,0.938 3.323,1.146 0.552,0.208 10 false GND

Using an oscilloscope, check waveform 1.

Waveform 1 (Reference)
Item Content
Terminal No. (Symbol) I4-28 (LST1) - Body ground
Tool Setting 5 V/DIV., 20 ms./DIV.
Condition "Close Fuel Lid" displayed on multi-information display

HINT:

This waveform is output when the fuel lid opener switch is operated if the fuel lid is open and any of the following conditions are met:

·

The vehicle has been driven for 1 km (0.6 mile) or more at a speed of 50 km/h (31 mph) or more.

·

30 minutes or more have elapsed since the fuel lid opener switch was operated.




b.
A375178E03
2.76,0.927 3.333,1.125 0.573,0.198 10 false GND

Using an oscilloscope, check waveform 2.

Waveform 2 (Reference)
Item Content
Terminal No. (Symbol) I4-28 (LST1) - Body ground
Tool Setting 5 V/DIV., 20 ms./DIV.
Condition "Ready to Refuel" displayed on multi-information display


c.
A375176
2.771,0.948 3.354,1.135 0.583,0.188 10 false GND

Using an oscilloscope, check waveform 3.

Waveform 3 (Reference)
Item Content
Terminal No. (Symbol) I4-28 (LST1) - Body ground
Tool Setting 5 V/DIV., 20 ms./DIV.
Condition "Please Wait Fuel Door Opening" displayed on multi-information display

HINT:

This waveform is output when the internal pressure of the fuel tank is higher than the ambient pressure when the fuel lid opener switch is operated.