Infiniti I30 (A33). Manual — part 62
11. A/T Does Not Shift: D
3
→
D
4
=NHAT0098
SYMPTOM:
I
A/T does not shift from D
3
to D
4
at the specified speed.
I
A/T must be warm before D
3
to D
4
shift will occur.
1
CHECK SYMPTOM
Are “7. Vehicle Does Not Creep Forward In D, 2 Or 1 Position” and “8. Vehicle Cannot Be Started From D
1
” OK?
Yes or No
Yes
©
GO TO 2.
No
©
Go to “7. Vehicle Does Not Creep Forward In D, 2 Or 1 Position” and “8. Vehicle Cannot
Be Started From D
1
2
CHECK SELF-DIAGNOSTIC RESULTS
With CONSULT-II
Does self-diagnosis, after cruise test, show damage to any of the following circuits?
I
Park/neutral position (PNP) switch
I
Overdrive control switch
I
A/T fluid temperature sensor
I
Vehicle speed sensor·A/T (revolution sensor)
I
Shift solenoid valve A or B
I
Vehicle speed sensor·MTR
SAT363HC
Yes or No
Yes
©
Check damaged circuit. Refer to “DTC P0705, P0710, P0720, P0750, P0755 or VHCL
SPEED SEN·MTR”, AT-102, AT-108, AT-114, AT-172, AT-177 or AT-203.
No
©
GO TO 3.
GI
MA
EM
LC
EC
FE
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSES FOR SYMPTOMS
11. A/T Does Not Shift: D
3
→
D
4
AT-245
3
CHECK THROTTLE POSITION SENSOR
Check throttle position sensor. Refer to EC-176, “DTC P0120 Throttle Position Sensor.
SAT289K
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 6.
NG
©
GO TO 5.
5
DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-280.
2. Check the following items:
I
Shift valve B
I
Overrun clutch control valve
I
Shift solenoid valve B
I
Pilot valve
I
Pilot filter
3. Disassemble A/T.
4. Check the following items:
I
Servo piston assembly
I
Brake band
I
Torque converter
I
Oil pump assembly
OK or NG
OK
©
GO TO 7.
NG
©
Repair or replace damaged parts.
TROUBLE DIAGNOSES FOR SYMPTOMS
11. A/T Does Not Shift: D
3
→
D
4
(Cont’d)
AT-246
6
DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-280.
2. Check the following items:
I
Shift valve B
I
Overrun clutch control valve
I
Shift solenoid valve B
I
Pilot valve
I
Pilot filter
OK or NG
OK
©
GO TO 7.
NG
©
Repair or replace damaged parts.
7
CHECK SYMPTOM
Check again.
OK or NG
OK
©
INSPECTION END
NG
©
GO TO 8.
8
CHECK TCM INSPECTION
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK
©
INSPECTION END
NG
©
Repair or replace damaged parts.
GI
MA
EM
LC
EC
FE
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSES FOR SYMPTOMS
11. A/T Does Not Shift: D
3
→
D
4
(Cont’d)
AT-247
12. A/T Does Not Perform Lock-up
=NHAT0099
SYMPTOM:
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
Yes or No
Yes
©
Check torque converter clutch solenoid valve circuit. Refer to “DTC P0740”, AT-151.
No
©
GO TO 2.
2
CHECK THROTTLE POSITION SENSOR
Check throttle position sensor. Refer to EC-176, “DTC P0120 Throttle Position Sensor”.
SAT289K
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-280.
2. Check following items:
I
Torque converter clutch control valve
I
Torque converter relief valve
I
Torque converter clutch solenoid valve
I
Pilot valve
I
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-248
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