Page 323 of 2898
3 CHECK THROTTLE POSITION SENSOR
Check throttle position sensor. Refer to EC-207, 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-351.
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-321
Page 324 of 2898
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-351.
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-322
Page 325 of 2898
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-159 (General and
except for Euro-OBD)/AT-233 (Euro-OBD).
No©GO TO 2.
2 CHECK THROTTLE POSITION SENSOR
Check throttle position sensor. Refer to EC-207, 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-351.
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-323
Page 327 of 2898
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-172 (General and except for Euro-OBD)/
AT-200 (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-351.
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-325
Page 328 of 2898
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-351.
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-326
Page 390 of 2898
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-388
Page 393 of 2898
SAT065F
9. Remove inter body from upper body.
10. Remove pilot filter, separating plate and gaskets from upper
body.
SAT870J
11. Check to see that steel balls are properly positioned in inter
body and then remove them.
+Be careful not to lose steel balls.
SAT871J
12. Check to see that steel balls are properly positioned in upper
body and then remove them.
+Be careful not to lose steel balls.
SAT872J
INSPECTIONNJAT0131Lower and Upper BodiesNJAT0131S01+Check to see that retainer plates are properly positioned in
lower body.
SAT321G
+Check to see that retainer plates are properly positioned in
upper body.
REPAIR FOR COMPONENT PARTS
Control Valve Assembly (Cont'd)
AT-391
Page 395 of 2898
SAT072F
b. Install upper separating gasket, upper inter separating gasket
and upper separating plate in order shown in illustration.
+Always use new gaskets.
SAT073F
c. Install reamer boltsFfrom bottom of upper body. Using reamer
bolts as guides, install separating plate and gaskets as a seat.
SAT074F
d. Install pilot filter.
SAT870J
e. Place inter body as shown in the illustration. Install steel balls
in their proper positions.
SAT076F
f. Install inter body on upper body using reamer boltsFas
guides.
+Be careful not to dislocate or drop steel balls.
REPAIR FOR COMPONENT PARTS
Control Valve Assembly (Cont'd)
AT-393