5A-40 Automatic Transmission/Transaxle:
Trouble Diagnosis 3
Off-vehicle repair
Non operate TCC (lock-
up) system
Malfunction of TCC solenoid valve Inspect. If NG, replace.
Malfunction of shift solenoid valve-A
and/or -B
Inspect. If NG, replace.
Malfunction of output shaft speed
sensor
Inspect. If NG, replace.
Malfunction of input shaft speed sensor Inspect. If NG, replace.
Malfunction of transmission range
sensor
Inspect. If NG, replace.
Malfunction of transmission fluid
temperature sensor
Inspect. If NG, replace.
Malfunction of pressure control solenoid
valve
Inspect. If NG, replace valve body assembly.
Malfunction of throttle position sensor Inspect referring to “Electric Throttle Body
Assembly On-Vehicle Inspection in Section
1C”. If NG, replace.
Malfunction of engine coolant
temperature sensor
Inspect referring to “ECT Sensor Inspection in
Section 1C”. If NG, replace.
Malfunction of brake light switch Inspect referring to “Brake Light Switch
Inspection in Section 9B”. If NG, replace.
Faulty valve body component Replace valve body assembly.
Excessive “N”
→
“D” or
“N”
→
“R” time lag
Malfunction of transmission fluid
temperature sensor
Inspect. If NG, replace.
Pressure control solenoid valve circuit
faulty
Inspect. If NG, replace valve body assembly.
Clogged oil strainer Replace.
Faulty valve body component Replace valve body assembly.
Condition Possible cause Correction / Reference Item
Condition Possible cause Correction / Reference Item
Unable to run in all range Faulty oil pump Inspect. If NG, replace.
Seized or broken planetary gear Inspect. If NG, replace.
Faulty one-way No.2 clutch Inspect. If NG, replace.
Damaged drive plate Inspect. If NG, replace.
Faulty forward clutch Inspect. If NG, replace.
Faulty reverse clutch Inspect. If NG, replace.
Faulty 1st and reverse brake Inspect. If NG, replace.
Faulty torque converter Replace.
Excessive “N”
→
“D” shift
shock
Faulty forward clutch Inspect. If NG, replace.
Excessive “N”
→
“R” shift
shock
Faulty reverse clutch Inspect. If NG, replace.
Faulty 1st and reverse brake Inspect. If NG, replace.
Poor 1
→
2 shift,
excessive shock or
slippage
Faulty 2nd brake Inspect. If NG, replace.
Faulty one-way No.1 clutch Inspect. If NG, replace.
Poor 2
→
3 shift,
excessive shock or
slippage
Faulty direct clutch Inspect. If NG, replace.
Poor 3
↔
O/D shift,
excessive shock or
slippage
Faulty forward clutch Inspect. If NG, replace.
Faulty O/D and 2nd coast brake Inspect. If NG, replace.
Poor 3
→
2 shift,
excessive shock or
slippage
Faulty direct clutch Inspect. If NG, replace.
Faulty one-way No.1 clutch Inspect. If NG, replace.
Poor 2
→
1 shift,
excessive shock or
slippage
Faulty 2nd brake Inspect. If NG, replace.
Faulty one-way No.2 clutch Inspect. If NG, replace.