Suzuki Wagon R Manual page 3327

7B1-34 AUTOMATIC TRANSAXLE (M13 ENGINE MODEL)
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 selector lever to "D" range.
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 "Gear Shift Diagram
and Lock-Up Diagram". (Refer to "Automatic Gear Shift Diagram" in this section.)
Troubleshooting
Condition
Unable to run in all
range
No gear shift as 3rd
gear
1 → 2 upshift fails to
occur
2 → 3 upshift fails to
occur
Possible Cause
Faulty valve body component
Faulty oil pump
Seized or broken planetary gear
Faulty one-way No.2 clutch
Faulty forward clutch
Faulty reverse clutch
Faulty 1st and reverse brake
Damaged drive plate
Faulty torque converter
Malfunction of shift solenoid valve-A and/or-B
Malfunction of timing solenoid valve
Malfunction of pressure control solenoid valve
Malfunction of shift solenoid valve-B
Malfunction of output shaft speed sensor (VSS)
Malfunction of throttle position sensor
Malfunction of transmission range sensor
Faulty valve body component
Faulty 2nd brake
Faulty one-way No.1 clutch
Malfunction of shift solenoid valve-A
Malfunction of output shaft speed sensor (VSS)
Malfunction of throttle position sensor
Malfunction of transmission range sensor
Faulty valve body component
Faulty direct clutch
Correction
Replace valve body assembly
Inspect. If NG, replace.
Replace.
Inspect. If NG, replace.
Inspect. If NG, replace valve body
assembly.
Inspect. If NG, replace.
Replace valve body assembly
Inspect. If NG, replace.
Inspect. If NG, replace.
Replace valve body assembly.
Inspect. If NG, replace.