Suzuki WagonR+ RB310 Service Manual page 2441

6-82 ENGINE DIAGNOSIS
DTC CONFIRMATION PROCEDURE
WARNING:
D 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.
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:
– Indication of fuel level meter in combination meter: 1/4 or more
– 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, 122_F or lower
2) Start engine and warm it up to normal operating temperature (70 – 110_C, 158 – 230_F) and run it at idle for
5 min.
3) Increase vehicle speed to 50 – 55 mph, 80 – 88 km/h in 5th gear or in "D" range.
4) Hold throttle valve at that opening position for 2 min. or longer.
5) Increase engine speed to 4000 r/min. in 3rd gear or in "2" range.
6) Release accelerator pedal and with engine brake applied, keep vehicle coasting (fuel cut condition) till engine
speed reaches 1500 r/min.
7) Stop vehicle (don't turn ignition switch OFF) and confirm test results according to following "Test Result Con-
firmation Flow Table."
Vehicle speed
50 – 55 mph
80 – 88 km/h
(Keep throttle
valve opening
constantly)
0
Test Result Confirmation Flow Table
STEP
1 Check DTC in "DTC" mode and pending DTC in "ON
BOARD TEST".
Is DTC or pending DTC displayed?
2 Set scan tool to "READINESS TESTS" mode and
check if testing has been completed.
Is test completed?
4)
1) 2) 3)
ACTION
5) 6)
YES
Proceed to applicable
DTC flow table.
No DTC is detected.
(Confirmation test is
completed)
Engine speed
4000 r/min
0
7)
NO
Go to Step 2.
Repeat DTC
confirmation
procedure.