Infiniti M45 (Y34). Manual - part 31

PRECAUTIONS

AT-9

Precautions

ACS00191

●

Before connecting or disconnecting the TCM harness con-
nector, turn ignition switch OFF and disconnect the battery
cable from the negative terminal. Because battery voltage is
applied to TCM even if ignition switch is turned OFF.

●

When connecting or disconnecting pin connectors into or
from TCM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on TCM
pin terminal, when connecting pin connectors.

●

Before replacing TCM, perform TCM input/output signal
inspection and make sure whether TCM functions properly
or not.

AT-86, "TCM INSPECTION TABLE"

●

After performing each TROUBLE DIAGNOSIS, perform
“DTC (Diagnostic Trouble Code) CONFIRMATION PROCE-
DURE”.
If the repair is completed the DTC should not be displayed
in the “DTC CONFIRMATION PROCEDURE”.

SEF289H

SEF291H

MEF040DA

SEF217U

AT-10

PRECAUTIONS

●

When removing the RE5R05A model transmission from a vehi-
cle, do not use the companion flange section at the rear end of
the transmission as a support point.

●

Always use the specified brand of A/T fluid. Refer to

MA-10,

"Fluids and Lubricants"

●

Use paper rags not cloth rags during work.

●

After replacing the A/T fluid, dispose of the waste oil using the
methods prescribed by law, ordinance, etc.

●

Before proceeding with disassembly, thoroughly clean the out-
side of the transmission. It is important to prevent the internal
parts from becoming contaminated by dirt or other foreign mat-
ter.

●

Disassembly should be done in a clean work area.

●

Use lint-free cloth or towels for wiping parts clean. Common
shop rags can leave fibers that could interfere with the operation
of the transmission.

●

Place disassembled parts in order for easier and proper assem-
bly.

●

All parts should be carefully cleaned with a general purpose,
non-flammable solvent before inspection or reassembly.

●

Gaskets, seals and O-rings should be replaced any time the
transmission is disassembled.

●

It is very important to perform functional tests whenever they are indicated.

●

The valve body contains precision parts and requires extreme care when parts are removed and serviced.
Place disassembled valve body parts in order for easier and proper assembly. Care will also prevent
springs and small parts from becoming scattered or lost.

●

Properly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.

●

Before assembly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to protect O-rings
and seals, or hold bearings and washers in place during assembly. Do not use grease.

●

Extreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.

●

Clean or replace ATF cooler if excessive foreign material is found in oil pan or clogging strainer. Refer to

AT-11, "ATF COOLER SERVICE"

●

After overhaul, refill the transmission with new ATF.

●

When the A/T drain plug is removed, only some of the fluid is drained. Old A/T fluid will remain in torque
converter and ATF cooling system.
Always follow the procedures under “Changing A/T Fluid” in the AT section when changing A/T fluid. Refer
to

AT-14, "Changing A/T Fluid"

and

AT-14, "Checking A/T Fluid"

SCIA0490E

PRECAUTIONS

AT-11

Service Notice or Precautions

ACS00192

ATF COOLER SERVICE

If A/T fluid contains frictional material (clutches, bands, etc.), or if an A/T is repaired, overhauled, or replaced,
inspect and clean the A/T fluid cooler mounted in the radiator or replace the radiator. Flush cooler lines using
cleaning solvent and compressed air after repair. For A/T fluid cooler cleaning procedure, refer to

AT-16, "A/T

Fluid Cooler Cleaning"

. For radiator replacement, refer to

CO-12, "RADIATOR"

OBD-II SELF-DIAGNOSIS

●

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 A/T CHECK indicator or the malfunction indicator lamp (MIL). Refer to the table
on

AT-92, "Display Items List"

for the indicator used to display each self-diagnostic result.

●

The self-diagnostic results indicated by the MIL are automatically stored in both the ECM and TCM mem-
ories.
Always perform the procedure on

AT-40, "HOW TO ERASE DTC"

to complete the repair and avoid

unnecessary blinking of the MIL.

For details of OBD-II, refer to

EC-49, "ON BOARD DIAGNOSTIC (OBD) SYSTEM"

●

Certain systems and components, especially those related to OBD, may use the new style slide-
locking type harness connector. For description and how to disconnect, refer to

PG-53, "HAR-

NESS CONNECTOR"

Wiring Diagrams and Trouble Diagnosis

ACS00193

When you read wiring diagrams, refer to the following:

●

GI-14, "How to Read Wiring Diagrams"

●

PG-2, "POWER SUPPLY ROUTING"

for power distribution circuit.

When you perform trouble diagnosis, refer to the following:

●

GI-10, "How to Follow Trouble Diagnoses"

●

GI-26, "How to Perform Efficient Diagnosis for an Electrical Incident"

AT-12

PREPARATION

PFP:00002

Special Service Tools

ACS004I4

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

ST2505S001
(J-34301-C)
Oil pressure gauge set
1 ST25051001
(

—

)

Oil pressure gauge
2 ST25052000
(

—

)

Hose
3 ST25053000
(

—

)

Joint pipe
4 ST25054000
(

—

)

Adapter
5 ST25055000
(

—

)

Adapter

Measuring line pressure

KV31103600
(J-45674)
Joint pipe adapter
(With ST25054000)

Measuring line pressure

ST33400001
(J-26082)
Drift
a: 60 mm (2.36 in) dia.
b: 47 mm (1.85 in) dia.

Installing oil pump housing oil seal

KV31102400
(J-34285 and J-34285-87)
Clutch spring compressor
a: 320 mm (12.60 in)
b: 174 mm (6.85 in)

Installing reverse brake return spring retainer

ST25850000
(J-25721-A)
Sliding hammer
a: 179 mm (7.05 in)
b: 70 mm (2.76 in)
c: 40 mm (1.57 in)
d: M12 x 1.75P

Remove oil pump assembly

ZZA0600D

ZZA1227D

NT086

NT423

NT422

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