Infiniti F50. Manual — part 51
TROUBLE DIAGNOSIS
AT-89
D
E
F
G
H
I
J
K
L
M
A
B
AT
TP SEN/CIRC A/T
●
TCM does not receive the proper accelerator pedal position
signals (input by CAN communication) from ECM.
X
P1705
—
ATF TEMP SEN/
CIRC
●
During running, the ATF temperature sensor signal voltage
is excessively high or low
X
P1710
P0710
TURBINE REV S/
CIRC
●
TCM does not receive the proper voltage signal from the
sensor.
●
TCM detects an irregularity only at position of 4th gear for
turbine revolution sensor 2.
X
P1716
P1716
VEH SPD SE/
CIR·MTR
●
Signal (CAN communication) from vehicle speed sensor
MTR not input due to cut line or the like
●
Unexpected signal input during running
—
P1721
—
A/T INTERLOCK
●
Except during shift change, the gear position and ATF pres-
sure switch states are monitored and comparative judge-
ment made.
X
P1730
P1730
A/T 1ST E/BRAK-
ING
●
Each ATF pressure switch and solenoid current is moni-
tored and if a pattern is detected having engine braking 1st
gear other than in the M1 position, a malfunction is
detected.
X
P1731
—
I/C SOLENOID/
CIRC
●
Normal voltage not applied to solenoid due to functional
malfunction, cut line, short, or the like
●
TCM detects as irregular by comparing target value with
monitor value.
X
P1752
P1752
I/C SOLENOID
FNCTN
●
TCM detects that actual gear ratio is irregular, and relation
between gear position and condition of ATF pressure
switch 3 is irregular during depressing accelerator pedal.
(Other than during shift change)
●
TCM detects that relation between gear position and condi-
tion of ATF pressure switch 3 is irregular during releasing
accelerator pedal. (Other than during shift change)
X
P1754
P1754*2
FR/B SOLENOID/
CIRC
●
Normal voltage not applied to solenoid due to functional
malfunction, cut line, short, or the like
●
TCM detects as irregular by comparing target value with
monitor value.
X
P1757
P1757
FR/B SOLENOID
FNCT
●
TCM detects that actual gear ratio is irregular, and relation
between gear position and condition of ATF pressure
switch 1 is irregular during depressing accelerator pedal.
(Other than during shift change)
●
TCM detects that relation between gear position and condi-
tion of ATF pressure switch 1 is irregular during releasing
accelerator pedal. (Other than during shift change)
X
P1759
P1759*2
D/C SOLENOID/
CIRC
●
Normal voltage not applied to solenoid due to cut line,
short, or the like
●
TCM detects as irregular by comparing target value with
monitor value.
X
P1762
P1762
Items (CONSULT-
II screen terms)
Malfunction is detected when...
TCM self-diagnosis
OBD-II (DTC)
A/T CHECK
indicator
lamp
“A/T” with
CONSULT-II
MIL indicator
lamp*1,
“ENGINE” with
CONSULT-II or
GST
AT-90
TROUBLE DIAGNOSIS
*1: Refer to
AT-41, "Malfunction Indicator Lamp (MIL)"
*2:These malfunctions cannot be displayed MIL if another malfunction is assigned to MIL.
D/C SOLENOID
FNCTN
●
TCM detects that actual gear ratio is irregular, and relation
between gear position and condition of ATF pressure
switch 5 is irregular during depressing accelerator pedal.
(Other than during shift change)
●
TCM detects that relation between gear position and condi-
tion of ATF pressure switch 5 is irregular during releasing
accelerator pedal. (Other than during shift change)
X
P1764
P1764*2
HLR/C SOL/CIRC
●
Normal voltage not applied to solenoid due to functional
malfunction, cut line, short, or the like
●
TCM detects as irregular by comparing target value with
monitor value.
X
P1767
P1767
HLR/C SOL
FNCTN
●
TCM detects that actual gear ratio is irregular, and relation
between gear position and condition of ATF pressure
switch 6 is irregular during depressing accelerator pedal.
(Other than during shift change)
●
TCM detects that relation between gear position and condi-
tion of ATF pressure switch 6 is irregular during releasing
accelerator pedal. (Other than during shift change)
X
P1769
P1769*2
LC/B SOLENOID/
CIRC
●
Normal voltage not applied to solenoid due to functional
malfunction, cut line, short, or the like
X
P1772
P1772
LC/B SOLENOID
FNCT
●
TCM detects an improper voltage drop when it tries to oper-
ate the solenoid valve.
●
Condition of ATF pressure switch 2 is different from monitor
value, and relation between gear position and actual gear
ratio is irregular.
X
P1774
P1774*2
MANU MODE SW/
CIRC
●
When an impossible pattern of switch signals is detected, a
malfunction is detected.
—
P1815
—
ATF PRES SW 1/
CIRC
●
TCM detects that actual gear ratio is normal, and relation
between gear position and condition of ATF pressure
switch 1 is irregular during depressing accelerator pedal.
(Other than during shift change)
—
P1841
—
ATF PRES SW 3/
CIRC
●
TCM detects that actual gear ratio is normal, and relation
between gear position and condition of ATF pressure
switch 3 is irregular during depressing accelerator pedal.
(Other than during shift change)
—
P1843
—
ATF PRES SW 5/
CIRC
●
TCM detects that actual gear ratio is normal, and relation
between gear position and condition of ATF pressure
switch 5 is irregular during depressing accelerator pedal.
(Other than during shift change)
—
P1845
—
ATF PRES SW 6/
CIRC
●
TCM detects that actual gear ratio is normal, and relation
between gear position and condition of ATF pressure
switch 6 is irregular during depressing accelerator pedal.
(Other than during shift change)
—
P1846
—
NO DTC IS
DETECTED FUR-
THER TESTING
MAY BE
REQUIRED
●
No NG item has been detected.
—
X
X
Items (CONSULT-
II screen terms)
Malfunction is detected when...
TCM self-diagnosis
OBD-II (DTC)
A/T CHECK
indicator
lamp
“A/T” with
CONSULT-II
MIL indicator
lamp*1,
“ENGINE” with
CONSULT-II or
GST
TROUBLE DIAGNOSIS
AT-91
D
E
F
G
H
I
J
K
L
M
A
B
AT
Data monitor mode (A/T)
X: Standard
—: Not applicable
Monitored item (Unit)
Monitor Item Selection
Remarks
ECU
INPUT
SIGNALS
MAIN SIG-
NALS
CAN DIAG
SUP-
PORT
MNTR
SELEC-
TION
FROM
MENU
VHCL/S SE·A/T (km/h)
X
X
—
X
Revolution sensor
VHCL/S SE·MTR (km/h)
X
—
—
X
ACCELE POSI (0.0/8)
X
—
—
X
Accelerator pedal position signal
THROTTLE POSI (0.0/8)
X
X
—
X
Degree of opening for accelerator
recognized by the TCM
For fail-safe operation, the specific
value used for control is displayed.
CLSO THL POS (ON-OFF display)
X
—
—
X
Signal input with CAN communica-
tions
W/O THL POS (ON-OFF display)
X
—
—
X
Signal input with CAN communica-
tions
BRAKE SW (ON-OFF display)
X
—
—
X
Stop lamp switch
GEAR
—
X
—
X
Gear position recognized by the
TCM updated after gear-shifting
ENGINE SPEED (rpm)
X
X
—
X
TURBINE REV (rpm)
X
X
—
X
OUTPUT REV (rpm)
X
X
—
X
GEAR RATIO
—
X
—
X
TC SLIP SPEED (rpm)
—
X
—
X
Difference between engine speed
and torque converter input shaft
speed
F SUN GR REV (rpm)
—
—
—
X
F CARR GR REV (rpm)
—
—
—
X
ATF TEMP SE 1 (V)
X
—
—
X
ATF TEMP SE 2 (V)
X
—
—
X
ATF TEMP 1 (
°
C)
—
X
—
X
ATF TEMP 2 (
°
C)
—
X
—
X
BATTERY VOLT (V)
X
—
—
X
ATF PRES SW 1 (ON-OFF display)
X
X
—
X
(for FR/B solenoid)
ATF PRES SW 2 (ON-OFF display)
X
X
—
X
(for LC/B solenoid)
ATF PRES SW 3 (ON-OFF display)
X
X
—
X
(for I/C solenoid)
ATF PRES SW 5 (ON-OFF display)
X
X
—
X
(for D/C solenoid)
ATF PRES SW 6 (ON-OFF display)
X
X
—
X
(for HLR/C solenoid)
PNP SW 1 (ON-OFF display)
X
—
—
X
PNP SW 2 (ON-OFF display)
X
—
—
X
PNP SW 3 (ON-OFF display)
X
—
—
X
PNP SW 4 (ON-OFF display)
X
—
—
X
1 POSITION SW (ON-OFF display)
X
—
—
X
SLCT LVR POSI
—
X
—
X
Selector lever position is recognized
by the TCM.
For fail safe operation, the specific
value used for control is displayed.
OD CONT SW (ON-OFF display)
X
—
—
X
Not mounted but displayed.
AT-92
TROUBLE DIAGNOSIS
POWERSHIFT SW (ON-OFF display)
X
—
—
X
Not mounted but displayed.
HOLD SW (ON-OFF display)
X
—
—
X
MANU MODE SW (ON-OFF display)
X
—
—
X
NON M-MODE SW (ON-OFF display)
X
—
—
X
UP SW LEVER (ON-OFF display)
X
—
—
X
DOWN SW LEVER (ON-OFF display)
X
—
—
X
SFT UP ST SW (ON-OFF display)
—
—
—
X
Not mounted but displayed.
SFT DWN ST SW (ON-OFF display)
—
—
—
X
ASCD-CRUISE (ON-OFF display)
—
—
—
X
ASCD-OD CUT (ON-OFF display)
—
—
—
X
ABS SIGNAL (ON-OFF display)
—
—
—
X
ACC OD CUT (ON-OFF display)
—
—
—
X
ACC SIGNAL (ON-OFF display)
—
—
—
X
TCS SIGNAL 2 (ON-OFF display)
—
—
—
X
TCS GR/P KEEP (ON-OFF display)
—
—
—
X
TCS SIGNAL 1 (ON-OFF display)
—
—
—
X
TCC SOLENOID (A)
—
X
—
X
LINE PRES SOL (A)
—
X
—
X
I/C SOLENOID (A)
—
X
—
X
FR/B SOLENOID (A)
—
X
—
X
D/C SOLENOID (A)
—
X
—
X
HLR/C SOL (A)
—
X
—
X
ON OFF SOL (ON-OFF display)
—
—
—
X
LC/B solenoid
TCC SOL MON (A)
—
—
—
X
L/P SOL MON (A)
—
—
—
X
I/C SL MON (A)
—
—
—
X
FR/B SOL MON (A)
—
—
—
X
D/C SOL MON (A)
—
—
—
X
HLR/C SOL MON (A)
—
—
—
X
ONOFF SOL MON (ON-OFF display)
—
—
—
X
LC/B solenoid
P POSI IND (ON-OFF display)
—
—
—
X
R POSI IND (ON-OFF display)
—
—
—
X
N POSI IND (ON-OFF display)
—
—
—
X
D POSI IND (ON-OFF display)
—
—
—
X
4TH POSI IND (ON-OFF display)
—
—
—
X
3RD POSI IND (ON-OFF display)
—
—
—
X
2ND POSI IND (ON-OFF display)
—
—
—
X
1ST POSI IND (ON-OFF display)
—
—
—
X
MANU MODE IND (ON-OFF display)
—
—
—
X
POWER M LAMP (ON-OFF display)
—
—
—
X
F-SAFE IND/L (ON-OFF display)
—
—
—
X
Monitored item (Unit)
Monitor Item Selection
Remarks
ECU
INPUT
SIGNALS
MAIN SIG-
NALS
CAN DIAG
SUP-
PORT
MNTR
SELEC-
TION
FROM
MENU
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