Infiniti M45 (Y34). Manual — part 106
A/T SHIFT LOCK SYSTEM
AT-309
D
E
F
G
H
I
J
K
L
M
A
B
AT
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
D
E
F
G
H
I
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K
L
M
A
B
AT
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
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
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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