Suzuki Swift Sport 2004 Service & Repair Manual page 672

5A-28 Automatic Transmission/Transaxle:
Condition
→
3 4 upshift fails to
occur
Gear shift point is
incorrect
→
O/D 3 downshift fails to
occur
→
3 2 downshift fails to
occur
→
2 1 downshift fails to
occur
Possible cause
Malfunction of shift solenoid valve-B
Malfunction of "3" position switch
Malfunction of engine coolant
temperature sensor
Malfunction of output shaft speed
sensor
Malfunction of input shaft speed sensor Inspect. If NG, replace.
Malfunction of throttle position sensor
Malfunction of transmission range
sensor
Malfunction of crankshaft position
sensor
Malfunction of timing solenoid valve
Malfunction of transmission fluid
temperature sensor
Malfunction of pressure control solenoid
valve
Faulty valve body component
Faulty O/D and 2nd coast brake
Abnormal engine condition
Malfunction of output shaft speed
sensor
Malfunction of throttle position sensor
Malfunction of pressure control solenoid
valve
Malfunction of shift solenoid valve-A
Malfunction of "3" position switch
Malfunction of output shaft speed
sensor
Malfunction of input shaft speed sensor Inspect. If NG, replace.
Malfunction of throttle position sensor
Malfunction of timing solenoid valve
Malfunction of pressure control solenoid
valve
Faulty valve body component
Faulty forward clutch
Malfunction of shift solenoid valve-A
Malfunction of output shaft speed
sensor
Malfunction of throttle position sensor
Faulty valve body component
Faulty one-way No.1 clutch
Malfunction of shift solenoid valve-B
Malfunction of output shaft speed
sensor
Malfunction of throttle position sensor
Faulty valve body component
Faulty one-way No.2 clutch
Correction / Reference Item
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.
Inspect. If NG, replace valve body assembly.
Replace valve body assembly.
Inspect. If NG, replace.
Inspect and repair engine.
Inspect. If NG, replace.
Inspect. If NG, replace.
Inspect. If NG, 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 valve body assembly.
Replace valve body assembly.
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.
Replace valve body assembly.
Inspect. If NG, replace.