EC-104
[QR (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
ENGINE CONTROL COMPONENT PARTS/CONTROL SYSTEMS APPLICATION
X: ApplicableItemDIAGNOSTIC TEST MODE
WORK
SUP-
PORTSELF-DIAGNOS-
TIC RESULTS
DATA
MONI-
TORDATA
MONI-
TOR
(SPEC)ACTIVE
TESTDTC & SRT
CONFIRMATION
DTC*
1FREEZE
FRAME
DATA*
2
SRT
STATUSDTC
WORK
SUP-
PORT
ENGINE CONTROL COMPONENT PARTS
INPUT
Crankshaft position sensor (POS)××××
Camshaft position sensor (PHASE)×××
Mass air flow sensor×××
Engine coolant temperature sensor×××××
Heated oxygen sensor 1×××××
Heated oxygen sensor 2×××××
Vehicle speed signal××××
Accelerator pedal position sensor×××
Throttle position sensor×××
Intake air temperature sensor××××
Knock sensor×
Refrigerant pressure sensor××
Closed throttle position switch
(accelerator pedal position sensor
signal)××
Air conditioner switch××
Park/neutral position (PNP) switch×××
Stop lamp switch×××
Power steering pressure sensor×××
Battery voltage××
Electrical load signal××
ASCD steering switch*
3×××
ASCD brake switch*
3×××
ASCD clutch switch*
3×××
ENGINE CONTROL COMPONENT PARTS
OUTPUT
Fuel injector×××
Power transistor (Ignition timing)×××
Throttle control motor relay×××
Throttle control motor×
EVAP canister purge volume control
solenoid valve××××
Air conditioner relay××
Fuel pump relay××××
Cooling fan relay××××
Heated oxygen sensor 1 heater××××
Heated oxygen sensor 2 heater××××
Intake valve timing control solenoid
valve××××
VIAS control solenoid valve×××
Calculated load value×××
EC-108
[QR (WITH EURO-OBD)]
TROUBLE DIAGNOSIS
INT/A TEMP SE [°C]
or [°F]××The intake air temperature (determined by the
signal voltage of the intake air temperature
sensor) is indicated.
START SIGNAL
[ON/OFF]××
Indicates start signal status [ON/OFF] com-
puted by the ECM according to the signals of
engine speed and battery voltage.After starting the engine, [OFF] is
displayed regardless of the
starter signal.
CLSD THL POS
[ON/OFF]××
Indicates idle position [ON/OFF] computed by
the ECM according to the accelerator pedal
position sensor signal.
AIR COND SIG
[ON/OFF]××
Indicates [ON/OFF] condition of the air condi-
tioner switch as determined by the air condi-
tioner signal.
P/N POSI SW
[ON/OFF]××
Indicates [ON/OFF] condition from the park/
neutral position (PNP) switch signal.
PW/ST SIGNAL
[ON/OFF]××
[ON/OFF] condition of the power steering
pressure sensor as determined by the power
steering pressure sensor is indicated.
LOAD SIGNAL [ON/
OFF]××
Indicates [ON/OFF] condition from the electri-
cal load signal.
ON: Rear window defogger switch is ON and/
or lighting switch is in 2nd position (placed in
LOW position for models with Xenon head-
lamp).
OFF: Both rear window defogger switch and
lighting switch are OFF.
IGNITION SW
[ON/OFF]×
Indicates [ON/OFF] condition from ignition
switch.
HEATER FAN SW
[ON/OFF]×
Indicates [ON/OFF] condition from the heater
fan switch signal.
BRAKE SW
[ON/OFF]×
Indicates [ON/OFF] condition from the stop
lamp switch signal.
INJ PULSE-B1
[msec]×
Indicates the actual fuel injection pulse width
compensated by ECM according to the input
signals.When the engine is stopped, a
certain computed value is indi-
cated.
IGN TIMING [BTDC]×
Indicates the ignition timing computed by ECM
according to the input signals.When the engine is stopped, a
certain value is indicated.
CAL/LD VALUE [%]
“Calculated load value” indicates the value of
the current airflow divided by peak airflow.
MASS AIRFLOW
[g·m/s]
Indicates the mass airflow computed by ECM
according to the signal voltage of the mass air
flow sensor.
PURG VOL C/V [%]
Indicates the EVAP canister purge volume
control solenoid valve control value computed
by the ECM according to the input signals.
The opening becomes larger as the value
increases.
INT/V TIM (B1)
[°CA]
Indicates [°CA] of intake camshaft advanced
angle.
INT/V SOL (B1) [%]
The control value of the intake valve timing
control solenoid valve (determined by ECM
according to the input signal) is indicated.
The advance angle becomes larger as the
value increases Monitored item
[Unit]ECM
INPUT
SIGNALSMAIN
SIG-
NALSDescription Remarks
TROUBLE DIAGNOSIS
EC-109
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
VIAS S/V*
[ON/OFF]
The control condition of the VIAS control sole-
noid valve (determined by ECM according to
the input signals) is indicated.
ON: VIAS control solenoid valve is operating.
OFF: VIAS control solenoid valve is not oper-
ating.
AIR COND RLY
[ON/OFF]×
The air conditioner relay control condition
(determined by ECM according to the input
signals) is indicated.
FUEL PUMP RLY
[ON/OFF]×
Indicates the fuel pump relay control condition
determined by ECM according to the input sig-
nals.
THRTL RELAY [ON/
OFF]×
Indicates the throttle control motor relay con-
trol condition determined by the ECM accord-
ing to the input signals.
COOLING FAN
[HI/LOW/OFF]
Indicates the condition of the cooling fan
(determined by ECM according to the input
signals).
HI: High speed operation
LOW: Low speed operation
OFF: Stop
HO2S1 HTR (B1)
[ON/OFF]
Indicates [ON/OFF] condition of heated oxy-
gen sensor 1 heater determined by ECM
according to the input signals.
HO2S2 HTR (B1)
[ON/OFF]
Indicates [ON/OFF] condition of heated oxy-
gen sensor 2 heater determined by ECM
according to the input signals.
IDL A/V LEARN
[YET/CMPLT]
Display the condition of idle air volume learn-
ing
YET: Idle Air Volume Learning has not been
performed yet.
CMPLT: Idle Air Volume Learning has already
been performed successfully.
TRVL AFTER MIL
[km] or [mile]
Distance traveled while MI is activated.
AC PRESS SEN [V]×
The signal voltage from the refrigerant pres-
sure sensor is displayed.
VHCL SPEED SE*
[km/h] or [mph]
The vehicle speed computed from the vehicle
speed signal sent from TCM is displayed.
SET VHCL SPD*
[km/h] or [mph]
The preset vehicle speed is displayed.
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 signal.
SET SW*
[ON/OFF]
Indicates [ON/OFF] condition from SET/
COAST switch signal.
BRAKE SW1*
[ON/OFF]
Indicates [ON/OFF] condition from ASCD
brake switch signal.
BRAKE SW2*
[ON/OFF]
Indicates [ON/OFF] condition of stop lamp
switch signal. Monitored item
[Unit]ECM
INPUT
SIGNALSMAIN
SIG-
NALSDescription Remarks
DTC P1720 VSS
EC-403
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
DTC P1720 VSSPFP:31036
DescriptionEBS018LQ
NOTE:
If DTC P1720 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
EC-133, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
ECM receives two vehicle speed sensor signals via CAN communication line. One is sent from ESP/TCS/ABS
control unit (models with ESP) or “ABS actuator and electric unit (control unit)”(models without ESP), and the
other is from TCM (Transmission control module). ECM uses these two signals for engine control.
CONSULT-II Reference Value in Data Monitor ModeEBS018LR
Specification data are reference values.
On Board Diagnosis LogicEBS018LS
The MI will not light up for this diagnosis.
DTC Confirmation ProcedureEBS018LT
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine.
4. Drive vehicle at a speed of 20 km/h (12 MPH) or more for at least 5 seconds without brake pedal depress-
ing.
5. If 1st trip DTC is detected, go to EC-404, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
MONITOR ITEM CONDITION SPECIFICATION
VEH SPEED SE
Turn drive wheels and compare the CONSULT-II value with speedometer
indicationAlmost the same speed as the
speedometer indication
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1720
1720Vehicle speed sensor
(A/T output)ECM detects a difference between two
vehicle speed sensor signals is out of the
specified range.
Harness or connectors
(The CAN communication line is open or
shorted)
Harness or connectors
(Revolution sensor circuit is open or shorted)
Harness or connectors
(Wheel sensor circuit is open or shorted.)
TCM
ESP/TCS/ABS control unit (models with ESP)
“ABS actuator and electric unit (control unit)”
(models without ESP)
Combination meter
Wheel sensor
Revolution sensor
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
EC-529
[QR (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
AUTOMATIC SPEED CONTROL DEVICE (ASCD)PFP:18930
System DescriptionEBS01FAX
INPUT/OUTPUT SIGNAL CHART
*: This signal is sent to the ECM through CAN communication line.
BASIC ASCD SYSTEM
Refer to Owner's Manual for ASCD operating instructions.
Automatic Speed Control Device (ASCD) allows a driver to keep vehicle at predetermined constant speed
without depressing accelerator pedal. Driver can set vehicle speed in advance between approximately 40 km/
h (25 MPH) and 144 km/h (89 MPH).
ECM controls throttle angle of electric throttle control actuator to regulate engine speed.
Operation status of ASCD is indicated by CRUISE indicator and SET indicator in combination meter. If any
malfunction occurs in ASCD system, it automatically deactivates control.
NOTE:
Always drive vehicle in safe manner according to traffic conditions and obey all traffic laws.
SET OPERATION
Press ASCD MAIN switch. (The CRUISE indicator in combination meter illuminates.)
When vehicle speed reaches a desired speed between approximately 40 km/h (25 MPH) and 144 km/h (89
MPH), press SET/COAST switch. (Then SET indicator in combination meter illuminates.)
ACCEL OPERATION
If the RESUME/ACCELERATE switch is pressed during cruise control driving, increase the vehicle speed until
the switch is released or vehicle speed reaches maximum speed controlled by the system.
And then ASCD will keep the new set speed.
CANCEL OPERATION
When any of following conditions exist, cruise operation will be canceled.
CANCEL switch is pressed
More than 2 switches at ASCD steering switch are pressed at the same time (Set speed will be cleared)
Brake pedal is depressed
Clutch pedal is depressed or gear position is changed to the neutral position (M/T models)
Vehicle speed decreased to 13 km/h (8 MPH) lower than the set speed
ESP/TCS system is operated
When the ECM detects any of the following conditions, the ECM will cancel the cruise operation and inform
the driver by blinking indicator lamp.
Engine coolant temperature is slightly higher than the normal operating temperature, CRUISE lamp may
blink slowly.
When the engine coolant temperature decreases to the normal operating temperature, CRUISE lamp will
stop blinking and the cruise operation will be able to work by pressing SET/COAST switch or RESUME/
ACCELERATE switch.
Malfunction for some self-diagnoses regarding ASCD control: SET lamp will blink quickly.
If MAIN switch is turned to OFF during ASCD is activated, all of ASCD operations will be canceled and vehicle
speed memory will be erased.
Sensor Input signal to ECM ECM function Actuator
ASCD brake switch Brake pedal operation
ASCD vehicle speed controlElectric throttle control
actuator Stop lamp switch Brake pedal operation
ASCD clutch switch (M/T) Clutch pedal operation
ASCD steering switch ASCD steering switch operation
Park/Neutral position (PNP)
switchGear position
wheel sensor* Vehicle speed
INDEX FOR DTC
EC-533
[QR (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
[QR (WITHOUT EURO-OBD)]INDEX FOR DTCPFP:00024
Alphabetical IndexEBS010WE
Check if the vehicle is a model with Euro-OBD (E-OBD) system or not by the Type approval number on the
identification plate. Refer to GI-46, "
IDENTIFICATION PLATE" .
NOTE:
If DTC U1000 or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-633, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
Items
(CONSULT-II screen terms)DTC*1
TripMI lighting
upReference page
CONSULT-II*2ECM*3
APP SEN 1/CIRC P2122 2122 1×EC-815
APP SEN 1/CIRC P2123 2123 1×EC-815
APP SEN 2/CIRC P2127 2127 1×EC-822
APP SEN 2/CIRC P2128 2128 1×EC-822
APP SENSOR P2138 2138 1×EC-838
ASCD BRAKE SW*7P1572 1572 1 —EC-790
ASCD SW *7P1564 1564 1 —EC-780
ASCD VHL SPD SEN*7P1574 1574 1 —EC-800
BRAKE SW/CIRCUIT P1805 1805 1×EC-809
CAN COMM CIRCUIT U1000
1000*52—EC-633
CAN COMM CIRCUIT U1001
1001*52—EC-633
CKP SEN/CIRCUIT P0335 0335 2×EC-693
CMP SEN/CIRC-B1 P0340 0340 2×EC-701
CTP LEARNING P1225 1225 2 —EC-771
CTP LEARNING P1226 1226 2 —EC-773
ECM P0605 0605 1 or 2× or —EC-716
ECM BACK UP/CIRCUIT P1065 1065 2×EC-719
ECT SEN/CIRC P0117 0117 2×EC-652
ECT SEN/CIRC P0118 0118 2×EC-652
ENG OVER TEMP P1217 1217 1×EC-755
ETC ACTR P1121 1121 1×EC-723
ETC FUNCTION/CIRC P1122 1122 1×EC-726
ETC MOT P1128 1128 1×EC-745
ETC MOT PWR P1124 1124 1×EC-737
ETC MOT PWR P1126 1126 1×EC-737
HO2S1 (B1) P0132 0132 2×EC-666
HO2S1 (B1) P0134 0134 2×EC-673
INT/V TIM CONT-B1 P0011 0011 2 —EC-636
KNOCK SEN/CIRC-B1 P0327 0327 2 —EC-688
KNOCK SEN/CIRC-B1 P0328 0328 2 —EC-688
MAF SEN/CIRCUIT P0102 0102 1×EC-644
MAF SEN/CIRCUIT P0103 0103 1×EC-644
NATS MALFUNCTION P1610 - P1615 1610 - 1615 2 —EC-567
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.No DTC
Flashing*4—
Flashing*4EC-569
INDEX FOR DTC
EC-535
[QR (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
DTC No. IndexEBS010WF
NOTE:
If DTC U1000 or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-633, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
DTC*1Items
(CONSULT-II screen terms)TripMI lighting
upReference page
CONSULT-II*
2ECM*3
No DTC
Flashing*4NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.—
Flashing*4EC-569
U1000
1000*5CAN COMM CIRCUIT 2 —EC-633
U1001
1001*5CAN COMM CIRCUIT 2 —EC-633
P0000 0000NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.———
P0011 0011 INT/V TIM CONT-B1 2 —EC-636
P0102 0102 MAF SEN/CIRCUIT 1×EC-644
P0103 0103 MAF SEN/CIRCUIT 1×EC-644
P0117 0117 ECT SEN/CIRC 2×EC-652
P0118 0118 ECT SEN/CIRC 2×EC-652
P0122 0122 TP SEN 2/CIRC 1×EC-658
P0123 0123 TP SEN 2/CIRC 1×EC-658
P0132 0132 HO2S1 (B1) 2×EC-666
P0134 0134 HO2S1 (B1) 2×EC-673
P0222 0222 TP SEN 1/CIRC 1×EC-680
P0223 0223 TP SEN 1/CIRC 1×EC-680
P0327 0327 KNOCK SEN/CIRC-B1 2 —EC-688
P0328 0328 KNOCK SEN/CIRC-B1 2 —EC-688
P0335 0335 CKP SEN/CIRCUIT 2×EC-693
P0340 0340 CMP SEN/CIRC-B1 2×EC-701
P0500 0500 VEH SPEED SEN/CIRC 2×EC-709
P0550 0550 PW ST P SEN/CIRC 2 —EC-711
P0605 0605 ECM 1 or 2× or —EC-716
P1065 1065 ECM BACK UP/CIRCUIT 2×EC-719
P1121 1121 ETC ACTR 1×EC-723
P1122 1122 ETC FUNCTION/CIRC 1×EC-726
P1124 1124 ETC MOT PWR 1×EC-737
P1126 1126 ETC MOT PWR 1×EC-737
P1128 1128 ETC MOT 1×EC-745
P1211 1211
TCS C/U FUNCTN*62—EC-753
P1212 1212
TCS/CIRC*62—EC-754
P1217 1217 ENG OVER TEMP 1×EC-755
P1225 1225 CTP LEARNING 2 —EC-771
P1226 1226 CTP LEARNING 2 —EC-773
P1229 1229 SENSOR POWER/CIRC 1×EC-775
P1564 1564
ASCD SW*71—EC-780
P1572 1572
ASCD BRAKE SW*71—EC-790
EC-536
[QR (WITHOUT EURO-OBD)]
INDEX FOR DTC
*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by ISO 15031-5.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this number is controlled by NISSAN.
*4: When engine is running.
*5: The troubleshooting for this DTC needs CONSULT-II.
*6: For models with ESP system.
*7: For QR25DE engine models.P1574 1574
ASCD VHL SPD SEN*
71—EC-800
P1610 - P1615 1610 - 1615 NATS MALFUNCTION 2 —EC-567
P1706 1706 P-N POS SW/CIRCUIT 2 —EC-802
P1720 1720 V/SP SEN (A/T OUT) 2 —EC-807
P1805 1805 BRAKE SW/CIRCUIT 1×EC-809
P2122 2122 APP SEN 1/CIRC 1×EC-815
P2123 2123 APP SEN 1/CIRC 1×EC-815
P2127 2127 APP SEN 2/CIRC 1×EC-822
P2128 2128 APP SEN 2/CIRC 1×EC-822
P2135 2135 TP SENSOR 1×EC-830
P2138 2138 APP SENSOR 1×EC-838
DTC*1Items
(CONSULT-II screen terms)TripMI lighting
upReference page
CONSULT-II*
2ECM*3