Infiniti Q45. Manual — part 43
TROUBLE DIAGNOSIS
AT-85
D
E
F
G
H
I
J
K
L
M
A
B
AT
CONSULT-II Function (A/T)
NCS000UM
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
FUNCTION
CONSULT-II REFERENCE VALUE
NOTICE:
1.
The CONSULT-II electrically displays shift timing and lock-up timing (that is, operation timing of each sole-
noid).
Check for time difference between actual shift timing and the CONSULT-II display. If the difference is
noticeable, mechanical parts (except solenoids, sensors, etc.) may be malfunctioning. Check mechanical
parts using applicable diagnostic procedures.
2.
Shift schedule (which implies gear position) displayed on CONSULT-II and that indicated in Service Man-
ual may differ slightly. This occurs because of the following reasons:
–
Actual shift schedule has more or less tolerance or allowance,
–
Shift schedule indicated in Service Manual refers to the point where shifts start, and
–
Gear position displayed on CONSULT-II indicates the point where shifts are completed.
3.
Display of solenoid valves on CONSULT-II changes at the start of shifting, while gear position is displayed
upon completion of shifting (which is computed by TCM).
Diagnostic test mode
Function
Reference page
Self-diagnostic results
Self-diagnostic results can be read and erased quickly.
Data monitor
Input/Output data in the TCM can be read.
CAN diagnostic support
monitor
The results of transmit/receive diagnosis of CAN communication can be read.
Function test
Performed by CONSULT-II instead of a technician to determine whether each system
is “OK” or “NG”.
—
DTC work support
Select the operating condition to confirm Diagnostic Trouble Codes.
ECU part number
TCM part number can be read.
—
Item name
Condition
Display value
(Approx.)
VHCL/S SE-A/T
During driving
Approximately
matches the speed-
ometer reading.
VHCL/S SE-MTR
ACCELE POSI
Released accelerator pedal.
0.0/8
Fully depressed accelerator pedal.
8.0/8
CLSD THL POS
Released accelerator pedal.
ON
Fully depressed accelerator pedal.
OFF
W/O THL POS
Fully depressed accelerator pedal.
ON
Released accelerator pedal.
OFF
BRAKE SW
Depressed brake pedal.
ON
Released brake pedal.
OFF
ENGINE SPEED
Engine running
Closely matches the
tachometer reading.
TURBINE REV
During driving (lock-up ON)
Approximately
matches the engine
speed.
ATF TEMP SE 1
0
°
C (32
°
F) - 20
°
C (68
°
F) - 80
°
C (176
°
F)
3.3 - 2.7 - 0.9 V
ATF TEMP SE 2
3.3 - 2.5 - 0.7 V
TCC SOLENOID
Slip lock-up is active
0.2 - 0.4 A
Lock-up is active
0.4 - 0.6 A
LINE PRES SOL
During driving
0.2 - 0.6 A
AT-86
TROUBLE DIAGNOSIS
FR/B SOLENOID
.
0.6 - 0.8 A
Front brake disengaged. Refer to
0 - 0.05 A
I/C SOLENOID
Input clutch disengaged. Refer to
0.6 - 0.8 A
Input clutch engaged. Refer to
.
0 - 0.05 A
D/C SOLENOID
Direct clutch disengaged. Refer to
.
0.6 - 0.8 A
Direct clutch engaged. Refer to
.
0 - 0.05 A
HLR/C SOL
High and low reverse clutch disengaged. Refer to
0.6 - 0.8 A
High and low reverse clutch engaged. Refer to
0 - 0.05 A
STARTER RELAY
Selector lever in “N”, “P” positions.
ON
Selector lever in other positions.
OFF
SLCT LVR POSI
Selector lever in “N”, “P” positions.
N/P
Selector lever in “R” position.
R
Selector lever in “D” position.
D
ON OFF SOL
Low coast brake engaged. Refer to
.
ON
Low coast brake disengaged. Refer to
.
OFF
ATF PRES SW 1
.
ON
Front brake disengaged. Refer to
.
OFF
ATF PRES SW 2
Low coast brake engaged. Refer to
.
ON
Low coast brake disengaged. Refer to
.
OFF
ATF PRES SW 3
Input clutch engaged. Refer to
.
ON
Input clutch disengaged. Refer to
.
OFF
ATF PRES SW 5
Direct clutch engaged. Refer to
.
ON
Direct clutch disengaged. Refer to
.
OFF
ATF PRES SW 6
High and low reverse clutch engaged. Refer to
.
ON
High and low reverse clutch disengaged Refer to
.
OFF
MANU MODE SW
Manual shift gate position (neutral)
ON
Other than the above
OFF
NON M-MODE SW
Manual shift gate position
OFF
Other than the above
ON
UP SW LEVER
Selector lever: + side
ON
Other than the above
OFF
DOWN SW LEVER
Selector lever: - side
ON
Other than the above
OFF
GEAR
During driving
1, 2, 3, 4, 5
Item name
Condition
Display value
(Approx.)
TROUBLE DIAGNOSIS
AT-87
D
E
F
G
H
I
J
K
L
M
A
B
AT
CONSULT-II SETTING PROCEDURE
Refer to
GI-36, "CONSULT-II Start Procedure"
.
SELF-DIAGNOSTIC RESULT MODE
After performing self-diagnosis, place check marks for results on the
Reference pages are provided following the items.
Operation Procedure
1.
Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE”
screen.
Display shows malfunction experienced since the last erasing
operation.
Display Items List
X: Applicable, —: Not applicable
BCIA0031E
Items (CONSULT-
II screen terms)
Malfunction is detected when...
TCM self-
diagnosis
OBD-II (DTC)
Reference
page
“A/T” with
CONSULT-II
MIL indicator
lamp*1,
“ENGINE” with
CONSULT-II or
GST
CAN COMM CIR-
CUIT
●
When a malfunction is detected in CAN communications.
U1000
U1000
STARTER RELAY/
CIRC
●
If this signal is ON other than in “P” or “N” position, this is
judged to be a malfunction.
(And if it is OFF in “P” or “N” position, this too is judged to
be a malfunction.)
P0615
—
TCM
●
TCM is malfunctioning
P0700
P0700
PNP SW/CIRC
●
PNP switch 1-4 signals input with impossible pattern.
●
“P” position is detected from “N” position without any other
positions being detected in between.
P0705
P0705
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.
P0717
P0717
VEH SPD SEN/
CIR AT
●
Signal from vehicle speed sensor A/T (Revolution sensor)
not input due to cut line or the like.
●
Unexpected signal input during running.
●
After ignition switch is turned ON, unexpected signal input
from vehicle speed sensor MTR before the vehicle starts
moving.
P0720
P0720
ENGINE SPEED
SIG
●
TCM does not receive the CAN communication signal from
the ECM.
P0725
—
TCC SOLENOID/
CIRC
●
Normal voltage not applied to solenoid due to cut line,
short, or the like.
P0740
P0740
A/T TCC S/V
FNCTN
●
A/T cannot perform lock-up even if electrical circuit is good.
●
TCM detects as irregular by comparing difference value
with slip rotation.
P0744
P0744*2
AT-88
TROUBLE DIAGNOSIS
L/PRESS SOL/
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.
P0745
P0745
TP SEN/CIRC A/T
●
TCM does not receive the proper accelerator pedal position
signals (input by CAN communication) from ECM.
P1705
—
ATF TEMP SEN/
CIRC
●
During running, the A/T fluid temperature sensor signal
voltage is excessively high or low.
P1710
P0710
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.
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.
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.
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.)
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.
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.)
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.
P1762
P1762
Items (CONSULT-
II screen terms)
Malfunction is detected when...
TCM self-
diagnosis
OBD-II (DTC)
Reference
page
“A/T” with
CONSULT-II
MIL indicator
lamp*1,
“ENGINE” with
CONSULT-II or
GST
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