Infiniti M45 (Y34). Manual - part 106

 

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Infiniti M45 (Y34). Manual - part 106

 

 

A/T SHIFT LOCK SYSTEM

AT-309

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Shift Lock Control Unit Reference Values

ACS001KM

SHIFT LOCK HARNESS CONNECTOR TERMINALS LAYOUT

SHIFT LOCK CONTROL UNIT INSPECTION TABLE

Data are reference values.

SCIA2004E

Terminal No. (Wire 

color)

Item

Condition

Judgement standard

1

(Y/G)

8

(B)

Power source

Always

Battery voltage

2

(G/OR)

8

(B)

Detention switch (for 
key)

When selector lever is not in “P” position with 
key inserted.

Battery voltage

When selector lever is in “P” position with key 
inserted.

Approx. 0V

3

(Y)

8

(B)

Detention switch (for 
shift)

When selector lever is not “P” position.

Battery voltage

When selector lever is “P” position.

Approx. 0V

4

(G)

8

(B)

Stop lamp switch

When brake pedal is depressed

Battery voltage

When brake pedal is released

Approx. 0V

5

(SB)

8

(B)

Vehicle speed signal 
(8pulse signal)

Speed meter is operated

6

(W/G)

8

(B)

Ignition signal

Ignition switch: OFF

Approx. 0V

Ignition switch: ON

Battery voltage

7

(L/Y)

8

(B)

Shift lock solenoid

When selector lever is in “P” position, brake 
pedal is depressed, and ignition switch is ON.

When selector lever is not in “P” position, 
ignition switch is ON, and vehicle speed is 
10km/h or less.

For 3minutes after selector lever is not in “P” 
position, vehicle speed is 10km/h or less, and 
ignition switch is ON 

 OFF.

Approx. 0V

Except the above

Battery voltage

8

(B)

Ground

Always

Approx. 0V

9

(BR)

8

(B)

Key lock solenoid

When selector lever is not “P” position.

Battery voltage for approx. 0.1 sec. 
(Note)

When selector lever is “P” position.

Approx. 0V

10

(R/W)

8

(B)

Key unlock solenoid

When selector lever is “P” position with ignition 
switch is OFF.

Battery voltage for approx. 0.1 sec. 
(Note)

When selector lever is not “P” position with igni-
tion switch is OFF.

Approx. 0V

ELF1084D

AT-310

A/T SHIFT LOCK SYSTEM

NOTE:
Make sure that the pointer swings only momentarily because the output time is so short. If the inspection is done with an oscilloscope, it
should be observed that the power source voltage lasts for 3.5 to 10 ms.

Component Inspection

ACS004Y5

SHIFT LOCK SOLENOID

Check operation by applying battery voltage to the A/T device
harness connector terminal.

CAUTION:

Be sure to apply the voltage of the correct polarity to the
respective terminals. Otherwise, the part may be damaged.

DETENTION SWITCH
For Key:

Check continuity between terminals of the A/T device harness
connector terminals.

DETENTION SWITCH
For Shift:

Check continuity between terminals of the A/T device harness
connector terminals.

KEY LOCK SOLENOID
Key Lock 

Check operation by applying battery voltage to key switch and
key lock solenoid harness connector terminal.

CAUTION:

Be careful not to cause burnout of the harness.

Connector No.

Terminal No.

M97

10 (Battery voltage) - 9 (Ground)

SCIA4500E

Condition

Connector No.

Terminal No.

Continuity

When selector lever is “P” posi-
tion.

M97

6 - 7

No

When selector lever is not “P” 
position.

Yes

SCIA4501E

Condition

Connector No.

Terminal No.

Continuity

When selector lever is “P” 
position.

M97

13 - 14

No

When selector lever is not “P” 
position.

Yes

SCIA4502E

Connector No.

Terminal No.

M64

1 (Battery voltage) - 2 (Ground)

SCIA2042E

A/T SHIFT LOCK SYSTEM

AT-311

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Key Unlock

Check operation by applying battery voltage to key switch and
key lock solenoid harness connector terminal.

CAUTION:

Be careful not to cause burnout of the harness.

KEY SWITCH

Check continuity between terminals of the key switch and key
lock solenoid harness connector terminals.

STOP LAMP SWITCH

Check continuity between terminals of the stop lamp switch har-
ness connector.

Check stop lamp switch after adjusting brake pedal. Refer to 

BR-6,

"Inspection and Adjustment"

 .

Connector No.

Terminal No.

M64

2 (Battery voltage) - 1 (Ground)

SCIA2043E

Condition

Connector No.

Terminal No.

Continuity

Key inserted

M64

3 - 4

Yes

Key withdrawn

No

SCIA2044E

Condition

Connector No.

Terminal No.

Continuity

When brake pedal is depressed

M402

1 - 2

Yes

When brake pedal is released

No

SCIA2045E

AT-312

ON-VEHICLE SERVICE

ON-VEHICLE SERVICE

PFP:00000

Control Valve Assembly

ACS004I7

CAUTION:

When replacing the control valve assembly, erase EEP ROM in TCM. Refer to 

AT-8, "Precautions for

TCM, A/T Assembly and Control Valve Assembly Replacement"

 .

COMPONENTS

REMOVAL

1.

Disconnect the battery cable from the negative terminal.

2.

Drain ATF through drain plug.

3.

Disconnect heated oxygen sensor 2 harness connector.

1.

Transmission assembly

2.

Control valve assembly

3.

Bracket

4.

A/T fluid temperature sensor 2

5.

Oil pan gasket

6.

Oil pan

7.

Magnet

8.

Drain plug gasket

9.

Drain plug

10. Oil pan mounting bolt

SCIA3950E

 

 

 

 

 

 

 

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