Suzuki WagonR+ RB310, Service Manual

Page: 1821 / 3086

6-1-58 GENERAL INFORMATION AND ENGINE DIAGNOSIS
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Usual driving: Driving at 30 – 40 mph, 50 – 60 km/h including short stop according to traffic signal. (under driving condition other than high-load,
high-engine speed, rapid accelerating and decelerating)
1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) and
50 mph
(80 km / h)
Above 20 mph
(32 km / h)
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Usual driving
DTC CONFIRMATION PROCEDURE
WARNING:
"
When performing a road test, select a place where there is no traffic or possibility of a traffic accident
and be very careful during testing to avoid occurrence of an accident.
"
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.: – 10
!
C, 14
!
F or higher
– Intake air temp.: 70
!
C, 158
!
F or lower
– No exhaust gas leakage and loose connection
2) Warm up engine to normal operating temperature.
3) Drive vehicle under usual driving condition for 5 min. and check HO2S-2 output voltage and
“ short term fuel
trim ” with “ Data List ” mode on scan tool, and write it down.
4) Stop vehicle (don ’ t turn ignition switch OFF).
5) Increase vehicle speed to higher than 20 mph, 32 km/h and then stop vehicle.
6) Repeat above steps 5) 4 times.
7) Increase vehicle speed to about 50 mph (80 km/h) in 3rd gear or 2 range.
8) Release accelerator pedal and with engine brake applied, keep vehicle coasting (fuel cut condition) for 10sec.
or more.
9) Stop vehicle (don ’ t turn ignition switch OFF) and run engine at idle for 2 min.
After this step 9), if “ Oxygen Sensor 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, proceed to next step 10).
10) Drive vehicle under usual driving condition for 10 min. (or vehicle is at a stop and run engine at idle for 10 min.
or longer)
11) Stop vehicle (don ’ t turn ignition switch OFF). Confirm test results according to “ Test Result Confirmation Flow
Table ” in “ DTC CONFIRMATION PROCEDURE ” of DTC P0420.