Manual Road Test; Engine Brake Test - Suzuki Liana RH413 Service Manual

5A-32 Automatic Transmission/Transaxle:

Manual Road Test

This test checks the gears being used in "L", "2" or "D"
range when driven with unoperated gear shift control
system. Test drive vehicle on a level road.
NOTE
Before this test, check DTC.
1) With select lever in "P", start engine and warm it up.
2) After warming up engine, turn ignition switch OFF
and disconnect valve body harness connector (1).
Troubleshooting
Condition
Operated gear is not
correct

Engine Brake Test

WARNING
!
Before test, make sure that there is no vehicle behind so as to prevent rear-end collision.
1) While driving vehicle in 3rd gear of "D" range, shift select lever down to "2" range and check if engine brake
operates.
2) In the same way as in Step 1), check engine brake for operation when select lever is shifted down to "L" range.
3) Engine brake should operate in the test.
Troubleshooting
Condition
Failure to operate when
shifted down to "2" range
Failure to operate when
shifted down to "L" range
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1
I2RH0B510015-01
Possible cause
Faulty valve body component
Faulty clutch or brake
Possible cause
Faulty valve body component
Faulty O/D and 2nd coast brake
Faulty valve body component
Faulty 1st and reverse brake
3) With select lever in "L" range, start vehicle and check
that 3rd gear is being used referring to the following
table.
Vehicle speed per 1000 rpm in engine speed
Model Gear position
1st
2nd
2WD 3rd
4th / OD
Reverse
1st
2nd
4WD 3rd
4th / OD
Reverse
4) Shift select lever to "2" range and check that 3rd
gear is being used.
5) Shift select lever to "D" range and check that 3rd
gear is being used.
6) After the checks, stop vehicle then turn ignition
switch OFF, and connect valve body harness
connector.
7) Clear DTC.
Correction / Reference Item
Replace valve body assembly.
Inspect clutch and brake. If any parts are faulty,
replace them.
Correction / Reference Item
Replace valve body assembly.
Inspect. If NG, replace.
Replace valve body assembly.
Inspect. If NG, replace.
Vehicle speed
9.1 km/h (5.7 mile/h)
16.6 km/h (10.3 mile/h)
26.0 km/h (16.2 mile/h)
37.3 km/h (23.2 mile/h)
11.3 km/h (7.0 mile/h)
8.6 km/h (5.4 mile/h)
15.7 km/h (9.8 mile/h)
24.6 km/h (15.3 mile/h)
35.4 km/h (22.0 mile/h)
10.7 km/h (6.6 mile/h)
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