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Manual Road Test; Engine Brake Test - Suzuki SX4 Service Manual

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Manual Road Test

WARNING
!
Carry out test in very little traffic area to prevent an accident.
Test requires 2 persons, a driver and a tester.
The purpose of this test is to judge whether causal factor of trouble which occurred in automatic transaxle is electrical
or mechanical by disconnecting valve body harness connector (1) and fixing automatic transaxle gear position.
1) Start engine and warm it up to normal operating temperature.
2) Turn ignition switch to OFF position and disconnect valve body harness connector (1).
3) Turn OFF all electrical loads.
With select lever shifted to each range ("L", "2", "3" and "D"), drive vehicle at 1,000 rpm engine speed and then
check vehicle speed by referring to "Fixed gear position".
If vehicle speed is not as specified in "Fixed gear position" table, go to troubleshooting.
4) Connect valve body harness connector and clear DTC.
Fixed gear position
Select lever position
L range
2 range
3 range
D range
R range
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
Fixed gear position
Reverse gear
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
Automatic Transmission/Transaxle:
1
I5RW0C510010-01
3rd gear
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.
S7RW0A5104012
Vehicle speed
Approx. 25.0 km/h (15.5 mile/h)
Approx. 10.9 km/h (6.8 mile/h)
S7RW0A5104013
5A-31

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