Infiniti G20 (P11). Manual — part 3
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Transaxle failure did not display evidence of damaged or worn internal parts, steel particles or clutch plate
lining material in unit and inside the fluid filter.
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Vehicle has been exposed to high mileage (only). The exception may be where the torque converter clutch
dampener plate lining has seen excess wear by vehicles operated in heavy and/or constant traffic, such
as taxi, delivery or police use.
ATF COOLER SERVICE
NCAT0004S03
Replace ATF cooler if excessive foreign material is found in oil pan or clogging strainer.
Replace radiator lower tank (which includes ATF cooler) with a new one and flush cooler line using cleaning
solvent and compressed air.
Refer to LC-14, “Radiator”.
OBD-II SELF-DIAGNOSIS
NCAT0004S04
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A/T self-diagnosis is performed by the TCM in combination with the ECM. The results can be read through
the blinking pattern of the O/D OFF indicator or the malfunction indicator lamp (MIL). Refer to the table on
AT-41 for the indicator used to display each self-diagnostic result.
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The self-diagnostic results indicated by the MIL are automatically stored in both the ECM and TCM
memories.
Always perform the procedure “HOW TO ERASE DTC” on AT-38 to complete the repair and avoid
unnecessary blinking of the MIL.
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The following self-diagnostic items can be detected using ECM self-diagnostic results mode* only when
the O/D OFF indicator lamp does not indicate any malfunctions.
−
PNP switch
−
A/T 1st, 2nd, 3rd, or 4th gear function
−
A/T TCC S/V function (lock-up).
*: For details of OBD-II, refer to EC-67, “ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION”.
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Certain systems and components, especially those related to OBD, may use a new style slide-
locking type harness connector.
For description and how to disconnect, refer to EL-5, “HARNESS CONNECTOR”.
Wiring Diagrams and Trouble Diagnosis
NCAT0005
When you read wiring diagrams, refer to the following:
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GI-11, “HOW TO READ WIRING DIAGRAMS”
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EL-9, “POWER SUPPLY ROUTING”
When you perform trouble diagnosis, refer to the following:
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GI-35, “HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES”
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GI-24, “HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT”
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LC
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BT
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PRECAUTIONS
Service Notice or Precautions (Cont’d)
AT-9
Special Service Tools
NCAT0006
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name
Description
(J34301-C)
Oil pressure gauge set
1 (J34301-1)
Oil pressure gauge
2 (J34301-2)
Hoses
3 (J34298)
Adapter
4 (J34282-2)
Adapter
5 (790-301-1230-A)
60° Adapter
6 (J34301-15)
Square socket
AAT896
Measuring line pressure and governor pressure
KV31103000
(J38982)
Drift
NT105
Installing differential oil seal
(Use with ST35325000.)
a: 59 mm (2.32 in) dia.
b: 49 mm (1.93 in) dia.
ST35325000
(
—
)
Drift
NT417
Installing differential oil seal
(Use with KV31103000.)
a: 215 mm (8.46 in)
b: 25 mm (0.98 in) dia.
c: M12 x 1.5P
KV38107700
(J39027)
Preload adapter
NT087
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Measuring turning torque of final drive assembly
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Measuring clearance between side gear and
differential case with washer
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Selecting differential side bearing adjusting shim
KV31103200
(J34285-A and J34285-
87)
Clutch spring compres-
sor
NT423
Removing and installing clutch return spring
a: 320 mm (12.60 in)
b: 174 mm (6.85 in)
ST23540000
(J25689-A)
Pin punch
NT442
Removing and installing parking rod plate, manual
plate and differential pinion mate shaft retaining
pins
a: 2.3 mm (0.091 in) dia.
b: 4 mm (0.16 in) dia.
PREPARATION
Special Service Tools
AT-10
Tool number
(Kent-Moore No.)
Tool name
Description
KV32101000
(J25689-A)
Pin punch
NT410
Installing throttle lever and manual shaft retaining
pins
a: 4 mm (0.16 in) dia.
ST25710000
(
—
)
Pin punch
NT410
Aligning groove of manual shaft and hole of trans-
mission case
a: 2 mm (0.08 in) dia.
ST3306S001
(J22888-D)
Differential side bearing
puller set
1 ST33051001
(J22888-D)
Puller
2 ST33061000
(J8107-2)
Adapter
NT745
Removing differential side bearing inner race
a: 39 mm (1.54 in) dia.
b: 29.5 mm (1.161 in) dia.
c: 130 mm (5.12 in)
d: 135 mm (5.31 in)
e: 120 mm (4.72 in)
KV381054S0
(J34286)
Puller
NT414
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Removing idler gear bearing outer race
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Removing differential side oil seals
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Removing differential side bearing outer race
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Removing needle bearing from bearing retainer
a: 250 mm (9.84 in)
b: 160 mm (6.30 in)
ST27180001
(J25726-A)
Puller
NT424
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Removing idler gear
a: 100 mm (3.94 in)
b: 110 mm (4.33 in)
c: M8 x 1.25P
ST30031000
(J22912-1)
Puller
NT411
Removing reduction gear bearing inner race
a: 90 mm (3.54 in) dia.
b: 50 mm (1.97 in) dia.
ST35272000 (J26092)
Drift
NT426
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Installing reduction gear bearing inner race
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Installing idler gear bearing inner race
a: 72 mm (2.83 in) dia.
b: 35.5 mm (1.398 in) dia.
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LC
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PREPARATION
Special Service Tools (Cont’d)
AT-11
Tool number
(Kent-Moore No.)
Tool name
Description
ST37830000
(
—
)
Drift
NT427
Installing idler gear bearing outer race
a: 62 mm (2.44 in) dia.
b: 39 mm (1.54 in) dia.
ST35321000
(
—
)
Drift
NT073
Installing output shaft bearing
a: 49 mm (1.93 in) dia.
b: 41 mm (1.61 in) dia.
ST30633000
(
—
)
Drift
NT073
Installing differential side bearing outer race
a: 67 mm (2.64 in) dia.
b: 49 mm (1.93 in) dia.
ST35271000
(J26091)
Drift
NT115
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Installing idler gear
a: 72 mm (2.83 in) dia.
b: 63 mm (2.48 in) dia.
ST33400001
(J26082)
Drift
NT115
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Installing oil pump housing oil seal
a: 60 mm (2.36 in) dia.
b: 47 mm (1.85 in) dia.
Commercial Service Tools
NCAT0007
Tool name
Description
Puller
NT077
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Removing idler gear bearing inner race
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Removing and installing band servo
piston snap ring
PREPARATION
Special Service Tools (Cont’d)
AT-12
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