Infiniti F50. Manual — part 69
DTC P1730 A/T INTERLOCK
AT-161
D
E
F
G
H
I
J
K
L
M
A
B
AT
TCWM0014E
AT-162
DTC P1730 A/T INTERLOCK
TCM terminals and data are reference value. Measured between each terminal and ground.
TCWM0015E
Terminal
No.
Wire
color
Item
Condition
Data (Approx.)
4
P/L
SEL3 (pressure
switch 3)
–
–
–
DTC P1730 A/T INTERLOCK
AT-163
D
E
F
G
H
I
J
K
L
M
A
B
AT
10
R/W
Input clutch sole-
noid valve
When
vehicle
cruises
When the solenoid valve operating (in 1st gear, 2nd gear,
or 3rd gear)
More than 2V
When the solenoid valve is not operating (4th gear or 5th
gear)
0V
11
R/L
High & low
reverse clutch
solenoid valve
When the solenoid valve operating [6 km/h (4MPH) or
faster in 1st gear or 2nd gear]
More than 2V
When the solenoid valve is not operating [6 km/h (4MPH)
or slower in 1st gear or 3rd, 4th, or 5th gear]
0V
13
W/L
Low coast brake
solenoid valve
When the solenoid valve is operating (when running in
M1-1 gear or M2-2 gear)
Battery voltage
When the solenoid valve is not operating (when running in
“D”)
0V
16
W/G
SEL1 (pressure
switch 2)
–
–
–
19
R
Front brake sole-
noid valve
When
vehicle
cruises
When the solenoid valve is operating (other than 4th
gear)
More than 2V
When the solenoid valve is not operating (4th gear)
0V
21
G
Direct clutch sole-
noid valve
When the solenoid valve is operating (1st gear or 5th
gear)
More than 2V
When the solenoid valve is not operating (2nd gear, 3rd
gear, or 4th gear)
0V
22
P/B
SEL2 (pressure
switch 5)
–
–
–
26
G/Y
PSC2 (pressure
switch 6)
When
vehicle
cruises
When high & low reverse clutch solenoid valve “ON”.
0V
When high & low reverse clutch solenoid valve “OFF”.
Battery voltage
35
B/Y
PSB2 (pressure
switch 1)
When front brake solenoid valve “OFF”.
Battery voltage
When front brake solenoid valve“ ON”.
0V
40
Y/G
DATA BIT1
–
–
–
Terminal
No.
Wire
color
Item
Condition
Data (Approx.)
AT-164
DTC P1730 A/T INTERLOCK
Judgement of A/T Interlock
ECS0086C
When A/T Interlock is judged to be malfunctioning, the vehicle should be fixed in 2nd, 4th, or 5th gear, and
should be set in a condition in which it can travel.
When one of the following fastening patterns is detected, the fail-safe function in correspondence with the indi-
vidual pattern should be executed.
A/T INTERLOCK COUPLING PATTERN TABLE
●
: NG, X: OK
Gear position
ATF pressure switch output
Fail-safe
function
Clutch pressure output pattern after fail-safe func-
tion
SW3
(I/C)
SW6
(H&LR
/C)
SW5
(D/C)
SW1
(Fr/B)
SW2
(LC/B)
I/C
H&LR/
C
D/C
Fr/B
LC/B
L/U
A/T interlock
coupling pat-
tern
1st
●
X
–
X
X
Held in 4th
gear
ON
ON
ON
OFF
OFF
OFF
–
X
●
–
X
Held in 4th
gear
ON
ON
ON
OFF
OFF
OFF
2nd
–
●
X
–
X
Held in 4th
gear
ON
ON
ON
OFF
OFF
OFF
●
–
X
X
–
Held in 4th
gear
ON
ON
ON
OFF
OFF
OFF
3rd
–
X
X
–
●
Held in
2nd gear
OFF
OFF
ON
OFF
OFF
OFF
●
–
X
X
–
Held in 4th
gear
ON
ON
ON
OFF
OFF
OFF
4th
–
X
X
–
●
Held in
2nd gear
OFF
OFF
ON
OFF
OFF
OFF
X
–
X
●
–
Held in 5th
gear
ON
ON
OFF
ON
OFF
OFF
5th
X
X
–
X
●
Held in
2nd gear
OFF
OFF
ON
OFF
OFF
OFF
X
–
●
X
–
Held in 4th
gear
ON
ON
ON
OFF
OFF
OFF
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