Infiniti G20 (P11). Manual — part 11
SAT014K
SELF-DIAGNOSTIC PROCEDURE (WITH CONSULT-II)
NCAT0022S02
1.
Turn on CONSULT-II and touch “ENGINE” for OBD-II detected
items or touch “A/T” for TCM self-diagnosis.
If A/T is not displayed, check TCM power supply and ground
circuit. Refer to AT-99. If result is NG, refer to EL-9, “POWER
SUPPLY ROUTING”.
SAT987J
2.
Touch “SELF DIAGNOSIS”.
Display shows malfunction experienced since the last erasing
operation.
CONSULT-II performs “real time diagnosis”.
Also, any malfunction detected while in this mode will be dis-
played at real time.
SELF-DIAGNOSTIC RESULT TEST MODE
NCAT0022S03
Detected items
(Screen terms for CONSULT-II, “SELF
DIAGNOSIS” test mode)
Malfunction is detected when ...
TCM self-diagnosis
OBD-II (DTC)
Available by
O/D OFF
indicator lamp or
“A/T” on CONSULT-II
Available by
malfunction
indicator lamp*2,
“ENGINE” on CON-
SULT-II or GST
“A/T”
“ENGINE”
PNP switch circuit
I
TCM does not receive the correct
voltage signal (based on the gear
position) from the switch.
—
P0705
—
PNP SW/CIRC
Revolution sensor
I
TCM does not receive the proper
voltage signal from the sensor.
X
P0720
VHCL SPEED
SEN·A/T
VEH SPD SEN/CIR
AT
Vehicle speed sensor (Meter)
I
TCM does not receive the proper
voltage signal from the sensor.
X
—
VHCL SPEED
SEN·MTR
—
A/T 1st gear function
I
A/T cannot be shifted to the 1st
gear position even if electrical
circuit is good.
—
P0731*1
—
A/T 1ST GR FNCTN
A/T 2nd gear function
I
A/T cannot be shifted to the 2nd
gear position even if electrical
circuit is good.
—
P0732*1
—
A/T 2ND GR
FNCTN
A/T 3rd gear function
I
A/T cannot be shifted to the 3rd
gear position even if electrical
circuit is good.
—
P0733*1
—
A/T 3RD GR
FNCTN
GI
MA
EM
LC
EC
FE
CL
MT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
CONSULT-II (Cont’d)
AT-41
Detected items
(Screen terms for CONSULT-II, “SELF
DIAGNOSIS” test mode)
Malfunction is detected when ...
TCM self-diagnosis
OBD-II (DTC)
Available by
O/D OFF
indicator lamp or
“A/T” on CONSULT-II
Available by
malfunction
indicator lamp*2,
“ENGINE” on CON-
SULT-II or GST
“A/T”
“ENGINE”
A/T 4th gear function
I
A/T cannot be shifted to the 4th
gear position even if electrical
circuit is good.
—
P0734*1
—
A/T 4TH GR
FNCTN
A/T TCC S/V function (lock-up)
I
A/T cannot perform lock-up even
if electrical circuit is good.
—
P0744*1
—
A/T TCC S/V
FNCTN
Shift solenoid valve A
I
TCM detects an improper voltage
drop when it tries to operate the
solenoid valve.
X
P0750
SHIFT
SOLENOID/V A
SFT SOL A/CIRC
Shift solenoid valve B
I
TCM detects an improper voltage
drop when it tries to operate the
solenoid valve.
X
P0755
SHIFT
SOLENOID/V B
SFT SOL B/CIRC
Overrun clutch solenoid valve
I
TCM detects an improper voltage
drop when it tries to operate the
solenoid valve.
X
P1760
OVERRUN
CLUTCH S/V
O/R CLUCH SOL/
CIRC
T/C clutch solenoid valve
I
TCM detects an improper voltage
drop when it tries to operate the
solenoid valve.
X
P0740
T/C CLUTCH
SOL/V
TCC SOLENOID/
CIRC
Line pressure solenoid valve
I
TCM detects an improper voltage
drop when it tries to operate the
solenoid valve.
X
P0745
LINE PRESSURE
S/V
L/PRESS SOL/
CIRC
Throttle position sensor,
Throttle position switch
I
TCM receives an excessively low
or high voltage from the sensor.
X
P1705
THROTTLE POSI
SEN
TP SEN/CIRC A/T
Engine speed signal
I
TCM does not receive the proper
voltage signal from the ECM.
X
P0725
ENGINE SPEED SIG
A/T fluid temperature sensor
I
TCM receives an excessively low
or high voltage from the sensor.
X
P0710
BATT/FLUID TEMP
SEN
ATF TEMP SEN/
CIRC
TCM (RAM)
I
TCM memory (RAM) is malfunc-
tioning.
—
—
CONTROL UNIT
(RAM)
—
TCM (ROM)
I
TCM memory (ROM) is malfunc-
tioning.
—
—
CONTROL UNIT
(ROM)
—
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
CONSULT-II (Cont’d)
AT-42
Detected items
(Screen terms for CONSULT-II, “SELF
DIAGNOSIS” test mode)
Malfunction is detected when ...
TCM self-diagnosis
OBD-II (DTC)
Available by
O/D OFF
indicator lamp or
“A/T” on CONSULT-II
Available by
malfunction
indicator lamp*2,
“ENGINE” on CON-
SULT-II or GST
“A/T”
“ENGINE”
TCM (EEP ROM)
I
TCM memory (EEP ROM) is mal-
functioning.
—
—
CONT UNIT (EEP
ROM)
—
Initial start
I
This is not a malfunction mes-
sage (Whenever shutting off a
power supply to the TCM, this
message appears on the screen.)
X
—
INITIAL START
—
No failure
(NO SELF DIAGNOSTIC FAILURE INDI-
CATED FURTHER TESTING MAY BE
REQUIRED**)
I
No failure has been detected.
X
X
X: Applicable
—: Not applicable
*1: These malfunctions cannot be displayed by MIL
if another malfunction is assigned to MIL.
*2: Refer to EC-81, “Malfunction Indicator Lamp (MIL)”.
DATA MONITOR MODE (A/T)
NCAT0022S04
Item
Display
Monitor item
Description
Remarks
TCM input
signals
Main sig-
nals
Vehicle speed sensor 1
(A/T)
(Revolution sensor)
VHCL/S SE·A/T
[km/h] or [mph]
X
—
I
Vehicle speed computed
from signal of revolution
sensor is displayed.
When racing engine in “N”
or “P” position with vehicle
stationary, CONSULT-II
data may not indicate 0
km/h (0 mph).
Vehicle speed sensor 2
(Meter)
VHCL/S SE·MTR
[km/h] or [mph]
X
—
I
Vehicle speed computed
from signal of vehicle
speed sensor is dis-
played.
Vehicle speed display may
not be accurate under
approx. 10 km/h (6 mph). It
may not indicate 0 km/h (0
mph) when vehicle is sta-
tionary.
Throttle position sensor
THRTL POS
SEN
[V]
X
—
I
Throttle position sensor
signal voltage is dis-
played.
A/T fluid temperature sen-
sor
FLUID TEMP SE
[V]
X
—
I
A/T fluid temperature
sensor signal voltage is
displayed.
I
Signal voltage lowers as
fluid temperature rises.
Battery voltage
BATTERY VOLT
[V]
X
—
I
Source voltage of TCM
is displayed.
Engine speed
ENGINE SPEED
[rpm]
X
X
I
Engine speed, computed
from engine speed
signal, is displayed.
Engine speed display may
not be accurate under
approx. 800 rpm. It may
not indicate 0 rpm even
when engine is not run-
ning.
GI
MA
EM
LC
EC
FE
CL
MT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
CONSULT-II (Cont’d)
AT-43
Item
Display
Monitor item
Description
Remarks
TCM input
signals
Main sig-
nals
Overdrive control switch
OVERDRIVE SW
[ON/OFF]
X
—
I
ON/OFF state computed
from signal of overdrive
control SW is displayed.
PN position switch
PN POSI SW
[ON/OFF]
X
—
I
ON/OFF state computed
from signal of PN posi-
tion SW is displayed.
R position switch
R POSITION SW
[ON/OFF]
X
—
I
ON/OFF state computed
from signal of R position
SW is displayed.
D position switch
D POSITION SW
[ON/OFF]
X
—
I
ON/OFF state computed
from signal of D position
SW is displayed.
2 position switch
2 POSITION SW
[ON/OFF]
X
—
I
ON/OFF status, com-
puted from signal of 2
position SW, is dis-
played.
1 position switch
1 POSITION SW
[ON/OFF]
X
—
I
ON/OFF status, com-
puted from signal of 1
position SW, is dis-
played.
ASCD cruise signal
ASCD·CRUISE
[ON/OFF]
X
—
I
Status of ASCD cruise
signal is displayed.
ON ... Cruising state
OFF ... Normal running
state
I
This is displayed even
when no ASCD is
mounted.
ASCD OD cut signal
ASCD·OD CUT
[ON/OFF]
X
—
I
Status of ASCD OD
release signal is dis-
played.
ON ... OD released
OFF ... OD not released
I
This is displayed even
when no ASCD is
mounted.
Kickdown switch
KICKDOWN SW
[ON/OFF]
X
—
I
ON/OFF status, com-
puted from signal of
kickdown SW, is dis-
played.
I
This is displayed even
when no kickdown
switch is equipped.
Closed throttle position
switch
CLOSED
THL/SW
[ON/OFF]
X
—
I
ON/OFF status, com-
puted from signal of
closed throttle position
SW, is displayed.
Wide open throttle position
switch
W/O THRL/P-SW
[ON/OFF]
X
—
I
ON/OFF status, com-
puted from signal of
wide open throttle posi-
tion SW, is displayed.
Gear position
GEAR
—
X
I
Gear position data used
for computation by TCM,
is displayed.
Selector lever position
SLCT LVR POSI
—
X
I
Selector lever position
data, used for computa-
tion by TCM, is dis-
played.
I
A specific value used for
control is displayed if
fail-safe is activated due
to error.
Vehicle speed
VEHICLE
SPEED
[km/h] or [mph]
—
X
I
Vehicle speed data,
used for computation by
TCM, is displayed.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
CONSULT-II (Cont’d)
AT-44
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