Suzuki SY413 Service Manual page 2683

6-1-84 ENGINE GENERAL INFORMATION AND DIAGNOSIS (G13/G16 ENGINE WITH WU TWC)
DTC CONFIRMATION PROCEDURE
WARNING:
D When performing a road test, select a place where there is no traffic or possibility of a traffic acci-
dent and be very careful during testing to avoid occurrence of an accident.
D Road test should be carried out with 2 persons, a driver and a tester, on a level road.
1) Turn ignition switch OFF.
Clear DTC with ignition switch ON, check vehicle and environmental condition for:
– Altitude (barometric pressure): 2400 m, 8000 ft or less (560 mmHg, 75 kPa or more)
– Ambient temp.: –105C, 145F or higher
– Intake air temp.: 705C, 1585F or lower
– Engine coolant temp.: 70 – 1105C, 158 – 2305F
2) Start engine and drive vehicle at 35 – 45 mph, 55 – 65 km/h for 8 min. or longer.
While this driving, if "Catalyst Monitoring TEST COMPLETED" is displayed in "READINESS TESTS" mode and
DTC is not displayed in "DTC" mode, confirmation test is completed.
If "TEST NOT COMPLTD" is still being displayed, continue test driving.
3) Decrease vehicle speed at 30 – 40 mph, 50 – 60 km/h, and hold throttle valve at that opening position for 2 min.
and confirm that short term fuel trim vary within –20% –+20% range.
4) Stop vehicle (do not turn ignition switch OFF) and confirm test results according to following "Test Result Con-
firmation Flow Table".
35 – 45 mph
(55 – 65 km / h)
30 – 40 mph
(50 – 60 km / h)
Test Result Confirmation Flow Table
STEP
1 Check DTC in "DTC" mode and pending DTC in "ON
BOARD TEST" or "PENDING DTC" mode.
Is DTC or pending DTC displayed?
2 Set scan tool to "READINESS TESTS" mode and
check if testing has been completed.
Is test completed?
ACTION YES
Proceed to applicable
DTC Diag. Flow Table.
No DTC is detected
(confirmation test is
completed).
NO
Go to Step 2.
Repeat DTC confirma-
tion procedure.