Page 1496 of 2493
4 CHECK A/T FLUID CONDITION
1. Remove oil pan.
2. Check A/T fluid condition.
SAT171B
OK or NG
OK©GO TO 5.
NG©GO TO 7.
5 DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-343.
2. Check the following items:
+Shift valve B
+Shift solenoid valve B (AT-146: Except for Euro-OBD/AT-250: Euro-OBD)
+Pilot valve
+Pilot filter
OK or NG
OK©GO TO 6.
NG©Repair or replace damaged parts.
6 CHECK SYMPTOM
Check again.
OK or NG
OK©INSPECTION END
NG©1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness con-
nector.
TROUBLE DIAGNOSES FOR SYMPTOMS
10. A/T Does Not Shift: D2®D3(Cont'd)
AT-310
Page 1497 of 2493
7 DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-343.
2. Check the following items:
+Shift valve B
+Shift solenoid valve B (AT-146: Except for Euro-OBD/AT-250: Euro-OBD)
+Pilot valve
+Pilot filter
3. Disassemble A/T.
4. Check the following items:
+Servo piston assembly
+High clutch assembly
+Oil pump assembly
OK or NG
OK©GO TO 6.
NG©Repair or replace damaged parts.
TROUBLE DIAGNOSES FOR SYMPTOMS
10. A/T Does Not Shift: D2®D3(Cont'd)
AT-311
Page 1499 of 2493
3 CHECK THROTTLE POSITION SENSOR
Check throttle position sensor. Refer to EC-168, ªDTC P0120 THROTTLE POSITION SENSORº.
SAT004K
OK or NG
OK©GO TO 4.
NG©Repair or replace throttle position sensor.
4 CHECK A/T FLUID CONDITION
1. Remove oil pan.
2. Check A/T fluid condition.
SAT171B
OK or NG
OK©GO TO 5.
NG©GO TO 7.
5 DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-343.
2. Check the following items:
+Shift valve B
+Overrun clutch control valve
+Shift solenoid valve B
+Pilot valve
+Pilot filter
OK or NG
OK©GO TO 6.
NG©Repair or replace damaged parts.
TROUBLE DIAGNOSES FOR SYMPTOMS
11. A/T Does Not Shift: D3®D4(Cont'd)
AT-313
Page 1500 of 2493
6 CHECK SYMPTOM
Check again.
OK or NG
OK©INSPECTION END
NG©1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness con-
nector.
7 DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-343.
2. Check the following items:
+Shift valve B
+Overrun clutch control valve
+Shift solenoid valve B
+Pilot valve
+Pilot filter
3. Disassemble A/T.
4. Check the following items:
+Servo piston assembly
+Brake band
+Torque converter
+Oil pump assembly
OK or NG
OK©GO TO 6.
NG©Repair or replace damaged parts.
TROUBLE DIAGNOSES FOR SYMPTOMS
11. A/T Does Not Shift: D3®D4(Cont'd)
AT-314
Page 1501 of 2493
12. A/T Does Not Perform Lock-up=NJAT0342SYMPTOM:
A/T does not perform lock-up at the specified speed.
1 CHECK SELF-DIAGNOSTIC RESULTS
Does self-diagnosis show damage to torque converter clutch solenoid valve circuit after cruise test?
SAT346H
YesorNo
Ye s©Check torque converter clutch solenoid valve circuit. Refer to AT-157 (Except for Euro-
OBD)/AT-231 (Euro-OBD).
No©GO TO 2.
2 CHECK THROTTLE POSITION SENSOR
Check throttle position sensor. Refer to EC-168, ªDTC P0120 THROTTLE POSITION SENSORº.
SAT004K
OK or NG
OK©GO TO 3.
NG©Repair or replace throttle position sensor.
3 DETECT MALFUNCTIONING ITEM
1. Remove control valve. Refer to AT-343.
2. Check following items:
+Torque converter clutch control valve
+Torque converter relief valve
+Torque converter clutch solenoid valve
+Pilot valve
+Pilot filter
OK or NG
OK©GO TO 4.
NG©Repair or replace damaged parts.
TROUBLE DIAGNOSES FOR SYMPTOMS
12. A/T Does Not Perform Lock-up
AT-315
Page 1503 of 2493
13. A/T Does Not Hold Lock-up Condition=NJAT0343SYMPTOM:
A/T does not hold lock-up condition for more than 30 seconds.
1 CHECK DIAGNOSTIC RESULTS
Does self-diagnosis show damage to engine speed signal circuit after cruise test?
SAT347H
YesorNo
Ye s©Check engine speed signal circuit. Refer to AT-170 (Except for Euro-OBD)/AT-198 (Euro-
OBD).
No©GO TO 2.
2 CHECK A/T FLUID CONDITION
1. Remove oil pan.
2. Check A/T fluid condition.
SAT171B
OK or NG
OK©GO TO 3.
NG©GO TO 5.
3 DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-343.
2. Check the following items:
+Torque converter clutch control valve
+Pilot valve
+Pilot filter
OK or NG
OK©GO TO 4.
NG©Repair or replace damaged parts.
TROUBLE DIAGNOSES FOR SYMPTOMS
13. A/T Does Not Hold Lock-up Condition
AT-317
Page 1504 of 2493
4 CHECK SYMPTOM
Check again.
OK or NG
OK©INSPECTION END
NG©1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness con-
nector.
5 DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-343.
2. Check the following items:
+Torque converter clutch control valve
+Pilot valve
+Pilot filter
3. Disassemble A/T.
4. Check torque converter and oil pump assembly.
OK or NG
OK©GO TO 4.
NG©Repair or replace damaged parts.
TROUBLE DIAGNOSES FOR SYMPTOMS
13. A/T Does Not Hold Lock-up Condition (Cont'd)
AT-318
Page 1561 of 2493
Control Valve Assembly
COMPONENTS=NJAT0129
SAT033K
1. Solenoid valve assembly
2. O-ring
3. Clip
4. Terminal body
5. Control valve lower body
6. Oil strainer
7. Support plate
8. Lower inter separating gasket9. Separating plate
10. Lower separating gasket
11. Steel ball
12. Control valve inter body
13. Pilot filter
14. Upper inter separating gasket
15. Separating plate
16. Upper separating gasket17. Steel ball
18. Control valve upper body
19. Check ball
20. Oil cooler relief valve spring
21. O-ring
22. T/C pressure holding spring
23. Check ball
REPAIR FOR COMPONENT PARTS
Control Valve Assembly
AT-375