Electric Throttle Body System Calibration - Suzuki Grand Vitara Service Manual

[A]
[B]
4
3
[A]: For J20 engine
[B]: For M16 engine
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.
Throttle position sensor output voltage
Throttle position sensor (main) [A]: 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)
Throttle position sensor (sub) [B]: 1.33 – 5.007 V,
varying according to throttle valve opening by finger
(Voltage should vary by about 0.032 V for each 1°
valve opening)
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3
2
1
2
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Engine Electrical Devices:
[F]
[G]
[H]
[C]
(V)
4.000 - 4.880
3.675 - 4.245
[B]
0.724 - 1.036
0.45 - 0.75
[F]
[G]
[H]
[C]: Throttle position sensor (main) output voltage
[D]: Throttle position sensor (sub) output voltage
[E]: Throttle valve opening
[F]: Position where throttle valve is open by 7° from completely closed
position (default position)
[G]: Angle obtained when accelerator pedal is depressed fully (84°)
[H]: Angle obtained when throttle valve is fully opened with finger (96°)

Electric Throttle Body System Calibration

NOTE
If the service described under the
"Precautions of Electric Throttle Body
System Calibration: in Section 1A" is
performed, calibrate electric throttle body
system as follows.
1) If electric throttle body assembly and/or accelerator
pedal position (APP) sensor assembly are replaced,
perform following steps.
a) Disconnect negative cable at battery for 20
seconds or more for the purpose of clearing
calibration data of closed throttle position from
memory in ECM.
b) Connect negative cable to battery.
2) Keep ignition switch at ON position for 5 seconds or
more without running engine.
1C-4
[D]
(V)
4.097 - 5.007
3.883 - 4.453
[A]
1.604 - 1.916
1.33 - 1.63
[E]
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