Infiniti G20 (P11). Manual — part 42
SAT021J
4)
Accelerate vehicle to more than 80 km/h (50 MPH) and main-
tain the following condition continuously until “TESTING” has
turned to “COMPLETE”. (It will take approximately 30 seconds
after “TESTING” shows.)
THROTTLE POSI: 1.0/8 - 2.0/8 (at all times during step 4)
Selector lever: D position (OD “ON”)
TCC S/V DUTY: More than 94%
VHCL/S SE·A/T: Constant speed of more than 80 km/h (50
MPH)
I
Check that “GEAR” shows “4”.
I
For shift schedule, refer to SDS, AT-389.
I
If “TESTING” does not appear on CONSULT-II for a long
time, select “SELF-DIAGNOSIS”. In case a 1st trip DTC
other than P0744 is shown, refer to applicable “TROUBLE
DIAGNOSIS FOR DTC”.
5)
Make sure that “OK” is displayed. (If “NG” is displayed, refer
to “DIAGNOSTIC PROCEDURE”.)
Refer to “DIAGNOSTIC PROCEDURE”, AT-167.
Refer to shift schedule, AT-389.
With GST
Follow the procedure “With CONSULT-II”.
GI
MA
EM
LC
EC
FE
CL
MT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
Description (Cont’d)
AT-165
Wiring Diagram — AT — TCCSIG
NCAT0208
TAT232
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
Wiring Diagram — AT — TCCSIG
AT-166
Diagnostic Procedure
NCAT0059
1
CHECK SHIFT UP (D
3
TO D
4
)
During “Cruise test − Part 1” (AT-76), does A/T shift from D
3
to D
4
at the specified speed?
SAT988H
Yes or No
Yes
©
GO TO 10.
No
©
GO TO 2.
2
CHECK LINE PRESSURE
Perform line pressure test.
Refer to AT-66.
MTBL0388
OK or NG
OK
©
GO TO 3.
NG
©
GO TO 6.
GI
MA
EM
LC
EC
FE
CL
MT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
Diagnostic Procedure
AT-167
3
CHECK CONTROL VALVE
1. Disassemble control valve assembly.
Refer to AT-312.
2. Check to ensure that:
I
Valve, sleeve and plug slide along valve bore under their own weight.
I
Valve, sleeve and plug are free from burrs, dents and scratches.
I
Control valve springs are free from damage, deformation and fatigue.
I
Hydraulic line is free from obstacles.
SAT367H
OK or NG
OK
©
GO TO 4.
NG
©
Repair control valve.
4
CHECK SHIFT UP (D
3
TO D
4
)
Does A/T shift from D
3
to D
4
at the specified speed?
Yes or No
Yes
©
GO TO 5.
No
©
Check control valve again. Repair or replace control valve assembly.
5
CHECK DTC
Perform Diagnostic Trouble Code (DTC) confirmation procedure, AT-164.
OK or NG
OK
©
INSPECTION END
NG
©
GO TO 10.. CHECK LOCK-UP CONDITION.
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
Diagnostic Procedure (Cont’d)
AT-168
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