Nissan Pathfinder. Manual — part 440
EC-66
< SYSTEM DESCRIPTION >
[VQ35DE]
DIAGNOSIS SYSTEM (ECM)
HO2S2 HTR (B1)
On/Off
Indicates [On/Off] condition of heat-
ed oxygen sensor 2 heater deter-
mined by ECM according to the
input signals.
HO2S2 HTR (B2)
ALT DUTY SIG
On/Off
The control condition of the power
generation voltage variable control
(determined by ECM according to
the input signals) is indicated.
• On: Power generation voltage
variable control is active.
• Off: Power generation voltage
variable control is inactive.
I/P PULLY SPD
rpm
Indicates the engine speed comput-
ed from the input speed sensor sig-
nal.
VEHICLE SPEED
km/h or
mph
The vehicle speed computed from
the vehicle speed signal sent from
TCM is displayed.
IDL A/V LEARN
Yet/CM-
PLT
Displays the condition of idle air vol-
ume learning
• Yet: Idle Air Volume Learning has
not been performed yet.
• CMPLT: Idle Air Volume Learning
has already been performed suc-
cessfully.
TRVL AFTER MIL
km or
mile
Distance traveled while MIL is acti-
vated.
ENG OIL TEMP
°C or °F
×
The engine oil temperature (deter-
mined by the signal voltage of the
engine oil temperature sensor) is
displayed.
A/F S1 HTR(B1)
%
• Air fuel ratio (A/F) sensor 1 heater
control value computed by ECM
according to the input signals.
• The current flow to the heater be-
comes larger as the value increas-
es.
VHCL SPEED SE
km/h or
mph
The vehicle speed computed from
the vehicle speed signal sent from
combination meter is displayed.
SET VHCL SPD
km/h or
mph
• The preset vehicle speed is dis-
played.
MAIN SW
On/Off
×
Indicates [On/Off] condition from
MAIN switch signal.
CANCEL SW
On/Off
Indicates [On/Off] condition from
CANCEL switch signal.
RESUME/ACC SW
On/Off
Indicates [On/Off] condition from
RESUME/ACCELERATE switch sig-
nal.
SET SW
On/Off
×
Indicates [On/Off] condition from
SET/COAST switch signal.
BRAKE SW1
On/Off
Indicates [On/Off] condition from
Brake pedal position switch signal or
ASCD clutch switch.
Monitored item
Unit
Monitor Item Selec-
tion
Description
Remarks
ECU IN-
PUT SIG-
NALS
MAIN-
SIG-
NALS
DIAGNOSIS SYSTEM (ECM)
EC-67
< SYSTEM DESCRIPTION >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
BRAKE SW2
On/Off
Indicates [On/Off] condition of stop
lamp switch signal.
VHCL SPD CUT
Non/
CUT
• Indicates the vehicle cruise condi-
tion.
NON: Vehicle speed is maintained
at the ASCD set speed.
CUT: Vehicle speed decreased to
excessively low compared with
the ASCD set speed, and ASCD
operation is cut off.
LO SPEED CUT
Non/
CUT
• Indicates the vehicle cruise condi-
tion.
NON: Vehicle speed is maintained
at the ASCD set speed.
CUT: Vehicle speed decreased to
excessively low, and ASCD oper-
ation is cut off.
AT OD MONITOR
On/Off
• Indicates [On/Off] condition of
CVT O/D according to the input
signal from the TCM.
AT OD CANCEL
On/Off
• Indicates [On/Off] condition of
CVT O/D cancel request signal.
CRUISE LAMP
On/Off
Indicates [On/Off] condition of
CRUISE lamp determined by the
ECM according to the input signals.
SET LAMP
On/Off
• Indicates [On/Off] condition of
SET lamp determined by the ECM
according to the input signals.
FAN DUTY
%
Indicates a command value for cool-
ing fan. The value is calculated by
ECM based on input signals.
ALT DUTY
%
Indicates the duty ratio of the power
generation command value. The ra-
tio is calculated by ECM based on
the battery current sensor signal.
VIAS S/V-2
On/Off
The control condition of the VIAS
control solenoid valve 2 (determined
by ECM according to the input sig-
nals) is indicated.
• On: VIAS control solenoid valve 2
is operating.
• Off: VIAS control solenoid valve 2
is not operating.
BAT CUR SEN
mV
The signal voltage of battery current
sensor is displayed.
A/F ADJ-B1
—
Indicates the correction of a factor
stored in ECM. The factor is calcu-
lated from the difference between
the target air-fuel ratio stored in ECM
and the air-fuel ratio calculated from
A/F sensor 1 signal.
A/F ADJ-B2
P/N POSI SW
On/Off
×
×
Indicates [On/Off] condition from the
park/neutral position (PNP) signal.
Monitored item
Unit
Monitor Item Selec-
tion
Description
Remarks
ECU IN-
PUT SIG-
NALS
MAIN-
SIG-
NALS
EC-68
< SYSTEM DESCRIPTION >
[VQ35DE]
DIAGNOSIS SYSTEM (ECM)
INT/A TEMP SE
°C or °F
×
×
The intake air temperature (deter-
mined by the signal voltage of the in-
take air temperature sensor) is
indicated.
AC PRESS SEN
V
The signal voltage from the refriger-
ant pressure sensor is displayed.
A/F SEN1 (B2)
V
×
×
The A/F signal computed from the
input signal of the air fuel ratio (A/F)
sensor 1 is displayed.
VTC DTY EX B2*
%
—
EVAP LEAK DIAG
Yet/CM-
PLT
Indicates the condition of EVAP leak
diagnosis.
• YET: EVAP leak diagnosis has not
been performed yet.
• CMPLT: EVAP leak diagnosis has
been performed successfully.
EVAP DIAG READY
On/Off
Indicates the ready condition of
EVAP leak diagnosis.
• On: Diagnosis has been ready
condition.
• Off: Diagnosis has not been ready
condition.
BAT TEMP SEN
V
The signal voltage from the battery
temperature sensor is displayed.
THRTL STK CNT B1*
—
—
HO2 S2 DIAG1(B2)
INCMP/
CMPLT
Indicates DTC P0139 self-diagnosis
(delayed response) condition.
• INCMP: Self-diagnosis is incom-
plete.
• CMPLT: Self-diagnosis is com-
plete.
A/F SEN1 DIAG1(B2)
INCMP/
CMPLT
Indicates DTC P015C or P015D
self-diagnosis condition.
• INCMP: Self-diagnosis is incom-
plete.
• CMPLT: Self-diagnosis is com-
plete.
A/F SEN1 DIAG1(B1)
INCMP/
CMPLT
Indicates DTC P015A or P015B self-
diagnosis condition.
• INCMP: Self-diagnosis is incom-
plete.
• CMPLT: Self-diagnosis is com-
plete.
A/F SEN1 DIAG2(B2)
INCMP/
CMPLT
Indicates DTC P014E or P014F self-
diagnosis condition.
• INCMP: Self-diagnosis is incom-
plete.
• CMPLT: Self-diagnosis is com-
plete.
A/F SEN1 DIAG2(B1)
INCMP/
CMPLT
Indicates DTC P014C or P014Dself-
diagnosis condition.
• INCMP: Self-diagnosis is incom-
plete.
• CMPLT: Self-diagnosis is com-
plete.
Monitored item
Unit
Monitor Item Selec-
tion
Description
Remarks
ECU IN-
PUT SIG-
NALS
MAIN-
SIG-
NALS
DIAGNOSIS SYSTEM (ECM)
EC-69
< SYSTEM DESCRIPTION >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
*: The item is indicated, but not used
NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
WORK SUPPORT MODE
Work Item
A/F SEN1 DIAG3(B2)
ABSNT/
PRSNT
Indicates DTC P014C, P014D,
P015A or P015B self-diagnosis con-
dition.
• ABSNT: The vehicle condition is
not within the diagnosis range.
• PRSNT: The vehicle condition is
within the diagnosis range.
A/F SEN1 DIAG3(B1)
ABSNT/
PRSNT
Indicates DTC P014C, P014D,
P015A or P015B self-diagnosis con-
dition.
• ABSNT: The vehicle condition is
not within the diagnosis range.
• PRSNT: The vehicle condition is
within the diagnosis range.
HO2 S2 DIAG2(B2)
INCMP/
CMPLT
Indicates DTC P0139 self-diagnosis
(slow response) condition.
• INCMP: Self-diagnosis is incom-
plete.
• CMPLT: Self-diagnosis is com-
plete.
HO2 S2 DIAG2(B1)
INCMP/
CMPLT
Indicates DTC P0139 self-diagnosis
(slow response) condition.
• INCMP: Self-diagnosis is incom-
plete.
• CMPLT: Self-diagnosis is com-
plete.
EOP SENSOR
mV
The signal voltage of EOP sensor is
displayed.
HO2 S2 DIAG1(B1)
INCMP/
CMPLT
Indicates DTC P0139 self-diagnosis
(delayed response) condition.
• INCMP: Self-diagnosis is incom-
plete.
• CMPLT: Self-diagnosis is com-
plete.
DIST SW
On/Off
Indicates [On/Off] condition from
DISTANCE switch signal.
AC EVA TEMP
°C or °F
Indicates A/C evaporator tempera-
ture sent from“A/C auto amp.”.
AC EVA TARGET
°C or °F
Indicates target A/C evaporator tem-
perature sent from“A/C auto amp.”.
Monitored item
Unit
Monitor Item Selec-
tion
Description
Remarks
ECU IN-
PUT SIG-
NALS
MAIN-
SIG-
NALS
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