Scan Tool Data - Suzuki SX4 Service Manual

1A-38 Engine General Information and Diagnosis:

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
• There are two types of OBD system depending on the vehicle specification.
For identification, refer to "Precaution on On-Board Diagnostic (OBD) System".
• With the CAN communication 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 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) (if
equipped)
THROTTLE POSITION
* (RELATIVE THROTTLE
POSITION)
* BAROMETRIC PRES
FUEL TANK LEVEL
* BATTERY VOLTAGE
BRAKE SWITCH
FUEL SYSTEM B1
*
(FUEL SYSTEM STATUS)
* O2S B1 S1
(HEATED OXYGEN
SENSOR-1)
O2S B1 S2
* (HEATED OXYGEN
SENSOR-2) (if equipped)
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 24 – 38 kPa, 7.1 – 11.2 in.Hg
Ignition switch ON / Accelerator pedal released
warmed up engine Accelerator pedal depressed
stopped fully
Ignition switch ON
Ignition switch ON / engine at stop
Brake pedal is released
Ignition switch ON
Brake pedal is depressed
At specified idle speed after warming up
At specified idle speed after warming up
At 2000 r/min. for 3 min. or longer after warming up
—
S7RW0A1104009
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
700 rpm
1.0 – 4.0 g/s 0.14 – 0.52 lb/
min.
4.0 – 9.0 g/s 0.53 – 1.58 lb/
min.
16 – 36%
10 – 30%
0 – 12%
90 – 100%
Barometric pressure is
displayed
0 – 100%
10 – 14 V
OFF
ON
CLSD (closed loop)
0.1 – 0.95 V
0.1 – 0.95 V