1C-4 Engine Electrical Devices:
TP Sensor Performance Check
1) Remove air cleaner outlet hose.
2) Turn OFF ignition switch.
3) Disconnect connector from electric throttle body
assembly.
4) Check TP sensor (main and sub) output voltage as
following steps.
a) For TP sensor (main), arrange 3 new 1.5 V
batteries (1) in series (check that total voltage is
4.5 – 5.0 V) and connect its positive terminal to
“Vin” terminal (2) and negative terminal to
“Ground” terminal (3) of sensor. Then using
voltmeter, connect positive terminal to “Vout 1”
terminal (4) of sensor and negative terminal to
battery.
b) For TP sensor (sub), arrange 3 new 1.5 V
batteries (1) in series (check that total voltage is
4.5 – 5.0 V) and connect its positive terminal to
“Vin” terminal (2) and negative terminal to
“Ground” terminal (3) of sensor. Then using
voltmeter, connect positive terminal to “Vout2”
terminal (4) of sensor and negative terminal to
battery.
c) Measure output voltage variation while throttle
valve is opened and closed as following
specification.
If sensor voltage is out of specified value and linear
variation as the following graph, replace electric throttle
body assembly.
TP sensor output voltage
TP sensor (main) [C]: 0.45 – 4.88 V, varying
according to throttle valve opening by finger
(Voltage should vary by 0.04 V for each 1° valve
opening)
TP sensor (sub) [D]: 1.33 – 4.992 V, varying
according to throttle valve opening by finger
(Voltage should vary by about 0.032 V for each 1°
valve opening)
1
42 3
I4RS0B130007-02
1
3
2
4
I4RS0B130008-01
[E]: Throttle valve opening
[F]: Position where throttle valve is open in default position from
completely closed position
[G]: Angle obtained when accelerator pedal is depressed fully (84°)
[H]: Angle obtained when throttle valve is fully opened with finger (96°)
[I]: TP sensor (main) output voltage
[J]: TP sensor (sub) output voltage
[D]
[C]
[J]
(V)
[I]
(V)
[F]
[G]
[E]
0.45 - 0.75
0.684 - 0.996
3.675 - 4.245
4.000 - 4.880
1.33 - 1.63
1.564 - 1.876
3.883 - 4.453
4.112 - 4.992
[H]
I6RS0C130002-01
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