Manifold Absolute Pressure (Map) Sensor Inspection; Electric Throttle Body Assembly On-Vehicle Inspection - Suzuki Grand Vitara 2011 Manual

1C-2 Engine Electrical Devices: For Petrol Engine Model
Manifold Absolute Pressure (MAP) Sensor
Inspection
1) Disconnect connector from MAP sensor.
2) Remove MAP sensor from intake manifold.
3) 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
4. Voltmeter
4) Install MAP sensor securely.
5) Connect MAP sensor connector securely.
S6JB0A1316002
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
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.
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.
Throttle Valve Visual Check
1) Remove air cleaner outlet hose (for J20 engine) or
air intake pipe (for M16 engine).
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: For J20 Engine in Section
1D" or "Electric Throttle Body Assembly Removal
and Installation: For M16A Engine with VVT in
Section 1D"and clean inside of throttle body
thoroughly.
S6JB0A1316003