Road Test - Suzuki Liana RH418 Supplementary Service Manual

5A-22 Automatic Transmission/Transaxle:

Road Test

This test is to check if upshift, downshift and lock-up take place at specified speeds while actually driving vehicle on a
level road.
WARNING
!
• Carry out test in very little traffic area to prevent an accident.
• Test requires 2 persons, a driver and a tester.
1) Warm up engine.
2) With engine running at idle, shift select "D".
3) Accelerate vehicle speed by depressing accelerator pedal gradually.
4) While driving in "D" range, check if gear shift and lock-up occur properly as shown in "Automatic Gear Shift
Diagram".
Troubleshooting
Condition
Unable to run in all range Faulty valve body component
→
1 2 upshift fails to
occur
→
2 3 upshift fails to
occur
→
3 O/D upshift fails to
occur
Possible cause
Faulty oil pump
Seized or broken planetary gear
Faulty one-way clutch No.2
Damaged drive plate
Faulty torque converter
Malfunction of shift solenoid valve-B
Malfunction of throttle position sensor
Malfunction of output shaft speed
sensor
Malfunction of transmission range
sensor
Faulty valve body component
Faulty 2nd / 4th brake
Faulty one-way clutch No.1
Malfunction of shift solenoid valve-A
Malfunction of throttle position sensor
Malfunction of output shaft speed
sensor
Malfunction of transmission range
sensor
Faulty valve body component
Faulty O/D clutch
Faulty 2nd / 4th brake
Malfunction of shift solenoid valve-B
Malfunction of O/D off switch
Malfunction of engine coolant
temperature sensor
Malfunction of throttle position sensor
Malfunction of transmission range
sensor
Malfunction of output shaft speed
sensor
Malfunction of transmission fluid
temperature sensor
Faulty valve body component
Faulty coast clutch
Faulty 2nd / 4th brake
Faulty one-way clutch No.0
Correction / Reference Item
Replace valve body assembly
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Replace valve body assembly.
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Replace valve body assembly.
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
Replace valve body assembly.
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, replace.
S3RH0B5104011