Scan Tool Data - Suzuki 2000 Grand Vitara SQ625 Service Manual

SCAN TOOL DATA

As the data values given below 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 in the below table that can be checked by the scan tool are those output from ECM (PCM) as Com-
mands 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:
D For asterisk (:) marked item in OTHER column, item can be read only SUZUKI scan tool.
D 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, all electric loads, P/S and all the other necessary switches.
SCAN TOOL DATA
COOLANT TEMP.
(Engine Coolant Temp.)
INTAKE AIR TEMP.
DESIRE IDLE
(Desired Idle Speed)
CLOSED THROT POS
(Closed Throttle Position)
IAC FLOW DUTY
ENGINE SPEED
SHORT FT B1
(Short Term Fuel Trim)
SHORT FT B2
(Short Term Fuel Trim)
LONG FT B1
(Long Term Fuel Trim)
LONG FT B2
(Long Term Full Trim)
IGNITION ADVANCE
BATTERY VOLTAGE
MAF (Mass Air Flow Rate)
INJ PULSE WIDTH B1
(Fuel Injection Pulse Width)
INJ PULSE WIDTH B2
CONDITION
At specified idle speed after warming up.
At specified idle speed after warming up.
At idling with no load
after warming up.
Ignition
Accelerator pedal released.
switch ON
Accelerator pedal depressed.
At specified idle speed after warming up.
At idling with no load after warming up.
At specified idle speed after warming up.
At specified idle speed after warming up.
At specified idle speed after warming up.
At specified idle speed after warning up.
At specified idle speed with
no load after warming up.
Ignition switch ON / engine stopped
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.
At 2500 r / min. with no load after warming up.
Without monitor connector
With monitor connector
Without monitor connector
With monitor connector
ENGINE (H25 ENGINE) 6-1-27
NORMAL CONDITION /
REFERENCE VALUE
80 – 100_C (176 – 212_F)
Environmental +20_C +36_F
–9_F
temp. –5_C
675 rpm
750 rpm
ON
OFF
10 – 50 %
Desired idle speed +
50 rpm
– 20 X +20%
– 15 X +15 %
– 15 X +15 %
– 15 X +15 %
– 15 X +15 %
6 – 12 deg.
10 – 16 deg.
10 – 14 V
2.5 X 4.6 g / s
0.20 X 0.53 lb / min.
8.2 X 15.0 gm / s
0.66 X 1.32 lb / min.
2.0 X 3.4 msec
2.0 X 3.4 msec
2.0 X 3.4 msec
2.0 X 3.4 msec
OTHER
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