Scan Tool Data - Suzuki Grand Vitara Service Manual

1A-37 Engine General Information and Diagnosis:
DTC No.
P2122 Pedal position sensor (main) circuit low input
P2123 Pedal position sensor (main) circuit high input
P2127 Pedal position sensor (sub) circuit low input
P2128 Pedal position sensor (sub) circuit high input
Throttle position sensor (main) / (sub) voltage
P2135
correlation
Pedal position sensor (main) / (sub) voltage
P2138
correlation
P2227 Barometric pressure sensor performance problem

Scan Tool Data

As the data values are standard values estimated on the basis of values obtained from the normally operating vehicles
by using a scan tool, use them as reference values. Even when the vehicle is in good condition, there may be cases
where the checked value does not fall within each specified data range. Therefore, judgment as abnormal should not
be made by checking with these data alone.
Also, conditions that can be checked by the scan tool are those detected by ECM and output from ECM as commands
and there may be cases where the engine or actuator is not operating (in the condition) as indicated by the scan tool.
Be sure to use the timing light to check the ignition timing.
NOTE
• With the generic scan tool, only star (*) marked data in the following table can be read.
• When checking the data with the engine running at idle or racing, be sure to shift M/T gear to the
neutral gear position and A/T gear to the "Park" position and pull the parking brake fully. Also, if
nothing or "no load" is indicated, turn OFF A/C (if equipped with A/C), all electric loads, P/S and all
the other necessary switches.
Scan tool data
COOLANT TEMP
*
(ENGINE COOLANT TEMP.)
* INTAKE AIR TEMP.
* ENGINE SPEED
DESIRED IDLE (DESIRED
IDLE SPEED)
MAF (MASS AIR FLOW
*
RATE)
CALC LOAD
* (CALCULATED LOAD
VALUE)
MAP (INTAKE MANIFOLD
*
ABSOLUTE PRESSURE)
THROTTLE POSITION
* (ABSOLUTE THROTTLE
POSITION)
BAROMETRIC PRES
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Detected item
Vehicle condition
At specified idle speed after warming up
At specified idle speed after warming up
It idling with no load after warming up
It idling with radiator cooling fan stopped and all
electrical parts turned OFF after warming up, M/T at
neutral
At specified idle speed with no load after warming
up
At 2500 r/min. with no load after warming up
At specified idle speed with no load after warming
up
At 2500 r/min. with no load after warming up
At specified idle speed with no load after warming
up
Ignition switch ON / Accelerator pedal released
warmed up engine Accelerator pedal depressed
stopped fully
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Fail-safe operation
• Throttle valve is fixed at the opening of about 7°
from its completely closed position (default
opening).
• ECM controls fuel cut at specified engine speed.
• ECM turns off throttle actuator control relay and
throttle valve is fixed at the opening of about 7°
from its completely closed position (default
opening).
• ECM controls fuel cut at specified engine speed.
• Throttle valve is fixed at the opening of about 7°
from its completely closed position (default
opening).
• ECM controls fuel cut at specified engine speed.
ECM controls actuators assuming that barometric
pressure is 101.33 kPa (762 mmHg).
—
S5JB0A1104007
Normal condition /
reference values
80 – 100 °C, 176 – 212 °F
–5 °C (23 °F) + environmental
temp. to 40 °C (104 °F) +
environmental temp.
Desired idle speed ± 50 rpm
650 rpm (for J20 engine), 660
rpm (for M16 engine)
1.0 – 4.0 g/s 0.14 – 0.52 lb/
min.
4.0 – 12.0 g/s 0.53 – 1.58 lb/
min.
0 – 10%
0 – 10%
24 – 38 kPa, 7.1 – 11.2 in.Hg
0 – 5%
90 – 100%
Barometric pressure is
displayed