Manifold Absolute Pressure (Map) Sensor Inspection (If Equipped); Electric Throttle Body Assembly On-Vehicle Inspection - Suzuki SX4 Service Manual

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Manifold Absolute Pressure (MAP) Sensor
Inspection (If Equipped)
1) Remove air cleaner assembly.
2) Disconnect connector from MAP sensor.
3) Remove MAP sensor.
4) Arrange 3 new 1.5 V batteries (2) in series (check
that total voltage is 4.5 – 5.0 V) and connect its
positive terminal to "Vin" terminal of sensor and
negative terminal to "Ground" terminal. Then check
voltage between "Vout" and "Ground". Also, check if
voltage reduces when vacuum is applied up to 400
mmHg by using vacuum pump (3).
If check result is not satisfactory, replace MAP
sensor (1).
Output voltage (When input voltage is 4.5 – 5.5 V,
ambient temp. 20 – 30 °C, 68 – 86 °F)
Altitude
Barometric pressure
(Reference)
(ft)
(m)
(mmHg)
0 – 2000
0 – 610
760 – 707
2001 –
611 –
Under 707
5000
1524
over 634
5001 –
1525 –
Under 634
8000
2438
over 567
8001 –
2439 –
Under 567
10000
3048
over 526
5) Install MAP sensor securely.
6) Connect MAP sensor connector securely.
7) Install air cleaner assembly.
Electric Throttle Body Assembly On-Vehicle
Inspection
WARNING
!
Never touch throttle valve with finger while
ignition switch is turned ON and accelerator
pedal is depressed. Otherwise, injury may
result by pinching the finger between throttle
valve and throttle body housing.
S7RW0A1306002
Output
voltage
(kPa)
(V)
100 – 94 3.3 – 4.3
94 – 85
3.0 – 4.1
85 – 76
2.7 – 3.7
76 – 70
2.5 – 3.3
I3RM0A130005-01
S7RW0A1306003
Engine Electrical Devices:
CAUTION
!
• Do not disassemble electric throttle body
assembly.
• Do not expose electric throttle body
assembly to excessive shock like a
dropping it. If electric throttle body
assembly has been exposed to excessive
shock, it should be replaced.
• Be careful not to accrete a foreign material
(like dust and/or metallic particle) to the
throttle body housing and/or throttle valve.
Otherwise, the throttle body assembly is
breaking down by throttle valve accretion.
• Do not apply excessive moving force to
throttle valve for throttle valve operation
check and/or TP sensor performance
check.
Otherwise, the throttle body assembly is
breaking down by damaging the internal
resinous gear of throttle valve actuator.
NOTE
After replacing electric throttle body
assembly, perform calibration of electric
throttle body assembly referring to "Electric
Throttle Body System Calibration".
Throttle Valve Visual Check
1) Remove air cleaner outlet hose.
2) Check that there isn't any foreign matter caught
between throttle valve and throttle body housing. If
there is, take it out after removing throttle body
referring to "Electric Throttle Body Assembly
Removal and Installation in Section 1D" and clean
inside of throttle body thoroughly.
Throttle Valve Operation Check
1) Remove air cleaner outlet hose.
2) Turn OFF ignition switch.
3) Move throttle valve with finger to its full open position
and check that it moves smoothly.
1C-2
I4RS0B130004-01

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