Accelerator Pedal Position (App) Sensor Assembly Inspection - Suzuki GRAND VITARA 2005 Service Manual

1C-7 Engine Electrical Devices:
Installation
Reverse removal procedure for installation noting the
following.
• Tighten accelerator pedal position (APP) sensor
assembly upper nut (1) first and then lower nuts (2) to
specified torque.
Tightening torque
Accelerator pedal position (APP) sensor assembly
nut (a): 6.0 N·m (0.6 kgf-m, 4.5 lb-ft)
1, (a)
• If APP sensor assembly bracket is removed, tighten
its mounting nuts to specified torque.
Tightening torque
APP sensor assembly bracket nut: 6.0 N·m (0.6
kgf-m, 4.3 lb-ft)
• Connect connector to accelerator pedal position
(APP) sensor assembly securely.
Accelerator Pedal Position (APP) Sensor
Assembly Inspection
Check accelerator pedal position (APP) sensor (main
and sub) output voltage as following steps.
1) For accelerator pedal position (APP) sensor (main),
arrange 3 new 1.5 V batteries (1) in series (check
that total voltage is 4.7 – 5.0 V) and connect its
positive terminal to "Vin 1" terminal (2) and negative
terminal to "Ground 1" terminal (3) of sensor. Then
using voltmeter, connect positive terminal to "Volt 1"
terminal (4) of sensor and negative terminal to
battery.
2, (a)
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2
3
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2) For accelerator pedal position (APP) sensor (sub),
arrange 3 new 1.5 V batteries (1) in series (check
that total voltage is 4.7 – 5.0 V) and connect its
positive terminal to "Vin 2" terminal (2) and negative
terminal to "Ground 2" terminal (3) of sensor. Then
using voltmeter connect positive terminal to "Volt 2"
terminal (4) of sensor and negative terminal to
battery.
4
3) Measure output voltage variation while accelerator
pedal is no depressed and fully depressed as
following specification.
If sensor voltage is out of specified value or does not
vary linearly as the following graph, replace accelerator
pedal position assembly.
Accelerator pedal position (APP) sensor output
voltage
Accelerator pedal position (APP) sensor (main)
output voltage [A]: 0.82 – 3.50 V, varying according
to depressed extent of accelerator pedal
Accelerator pedal position (APP) sensor (Sub)
output voltage [B]: 0.44 – 1.74 V, varying according
to depressed extent of accelerator pedal
[C]
3.50 - 4.27 V
1.74 - 2.17 V
0.65 - 0.82 V
0.30 - 0.44 V
[D]
[C]: Sensor output voltage
[D]: Idle position of accelerator pedal
[E]: Fully depressed position of accelerator pedal
[F]: Pedal stroke
3 2
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[A]
[B]
[E] [F]
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