Suzuki Liana RH413 Service Manual page 76

1A-25 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
• With the generic scan tool, only asterisk(*) marked data in the following table can be read.
• The triangle ( ) marked data can not be read for vehicle without immobilizer indicator lamp.
• 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
*
FUEL SYSTEM B1 (FUEL
SYSTEM STATUS)
*
CALC LOAD (CALCULATED
LOAD VALUE)
*
COOLANT TEMP. (ENGINE
COOLANT TEMP.)
*
SHORT FT B1 (SHORT
TERM FUEL TRIM)
*
LONG FT B1 (LONG TERM
FUEL TRIM)
*
MAP (INTAKE MANIFOLD
ABSOLUTE PRESSURE)
*
ENGINE SPEED
*
VEHICLE SPEED
*
IGNITION ADVANCE
(IGNITION TIMING
ADVANCE FOR NO.1
CYLINDER)
*
INTAKE AIR TEMP.
*
MAF
(MASS AIR FLOW RATE)
*
THROTTLE POSITION
(ABSOLUTE THROTTLE
POSITION)
*
O2S B1 S1 (HEATED
OXYGEN SENSOR-1)
Vehicle condition
At specified idle speed 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 after warming up
At specified idle speed after warming up
At specified idle speed after warming up
At specified idle speed with no load after
warming up
At idling with no load after warming up
At stop
At specified idle speed with no load after
warming up
At specified idle speed after warming up
At specified idle speed with no load after
warming up
At 2500 r/min. with no load after warming up
Ignition switch ON / Throttle valve fully closed
engine stopped Throttle valve fully open
At specified idle speed after warming up
S3RH0A1104007
Normal condition /
reference values
CLOSED (closed loop)
3 – 9%
12 – 17%
80 – 100 °C, 176 – 212 °F
–20 – +20%
–15 – +15%
24 – 37 kPa, 180 – 280 mmHg
Desired idle speed ± 50 r/min.
0 km/h, 0 MPH
1.3 L: 8 – 15° BTDC
1.6 L: 5 – 15° BTDC
Ambient temp.: +30 °C (86 °F)
–5 °C (23 °F)
1 – 4 g/s
4 – 9 g/s
7 – 18%
70 – 90%
0 – 0.95 V