Nissan X-Trail 32. Manual — part 846
ECM
EC-513
< ECU DIAGNOSIS INFORMATION >
[QR25DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Fail Safe
INFOID:0000000010986262
NON DTC RELATED ITEM
117
(W)
128
(BR)
PNP signal
Input
[Ignition switch: ON]
• Selector lever: P or N
Battery voltage
(11 - 14 V)
[Ignition switch: ON]
• Selector lever: Except above
0 V
118
(SB)
—
Sensor power supply
(Accelerator pedal posi-
tion sensor 2)
—
[Ignition switch: ON]
5.0 V
119
(Y)
120
(LG)
Accelerator pedal posi-
tion sensor 2
Input
[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully released
0.25 - 0.5 V
[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully depressed
2.0 - 2.5 V
120
(LG)
—
Sensor ground
(Accelerator pedal posi-
tion sensor 2)
—
—
—
121
(BR)
128
(BR)
Power supply for ECM
Input
[Ignition switch: ON]
Battery voltage
(11 - 14 V)
122
(V)
—
Sensor power supply
(Accelerator pedal posi-
tion sensor 1)
—
[Ignition switch: ON]
5.0 V
123
(BR)
—
ECM ground
—
—
—
124
(W)
—
Sensor ground
(Refrigerant pressure
sensor)
—
—
—
126
(GR)
127
(R)
Accelerator pedal posi-
tion sensor 1
Input
[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully released
0.5 - 1.0 V
[Ignition switch: ON]
• Engine stopped
• Accelerator pedal: Fully depressed
4.2 - 4.8 V
127
(R)
—
Sensor ground
(Accelerator pedal posi-
tion sensor 1)
—
—
—
128
(BR)
—
ECM ground
—
—
—
Terminal No.
(Wire color)
Description
Condition
Value
(Approx.)
+
−
Signal name
Input/
Output
EC-514
< ECU DIAGNOSIS INFORMATION >
[QR25DE]
ECM
DTC RELATED ITEM
Description
When a DTC is detected, ECM executes a mode (in the Fail-safe mode) applicable to the DTC. The fail-safe
mode has the preset traveling control mode (accelerator angle variation and engine output limit) and device fix
mode.
Fail Safe Pattern
Fail Safe List
×
:Applicable —: Not applicable
Detected
items
Engine operating condition
in fail-safe mode
Remarks
Reference page
Malfunction
indicator
lamp circuit
Engine speed will not rise
more than 2,500 rpm due
to the fuel cut
When there is an open circuit on MIL circuit, the ECM cannot warn the
driver by lighting up MIL when there is malfunction on engine control
system.
Therefore, when electrical controlled throttle and part of ECM related
diagnoses are continuously detected as NG for 5 trips, ECM warns the
driver that engine control system malfunctions and MIL circuit is open
by means of operating fail safe function.
The fail safe function also operates when above diagnoses except MIL
circuit are detected and demands the driver to repair the malfunction.
Fail safe mode
Vehicle behavior
Traveling con-
trol mode
Accelerator an-
gle variation
control
ECM controls the accelerator pedal depression speed to make it slower than actual speed. This
causes a drop in accelerating performance and encourages the driver to repair malfunction.
NOTE:
ECM does not control the accelerator pedal releasing speed.
Engine output
control
ECM reduces the engine output, according to the rise in engine speed. This reduces the vehicle
speed to encourage the driver to repair malfunction.
Device fix mode
• This mode fixes the IVT control solenoid valve and the EVT control solenoid valve in the refer-
ence position.
• The intake manifold runner control valve motor is turned OFF (intake manifold runner control
valve opens).
Pattern
Fail safe mode
A
Traveling control mode
Accelerator angle variation control
B
Engine output control
C
Device fix mode
DTC
No.
Detected items
Vehicle behavior
Pattern
Others
A
B
C
P0011
Intake valve timing control
—
—
×
ECM activates the IVT intermediate lock control solenoid
valve to bring the cam sprocket into an intermediate lock con-
dition.
P0014
P0078
Exhaust valve timing control
—
—
×
—
P0102
P0103
Mass air flow sensor circuit
×
×
×
—
P0122
P0123
P0222
P0223
P2135
Throttle position sensor
—
—
—
The ECM controls the electric throttle control actuator in reg-
ulating the throttle opening in order for the idle position to be
within +10 degrees.
The ECM regulates the opening speed of the throttle valve to
be slower than the normal condition.
So, the acceleration will be poor.
ECM
EC-515
< ECU DIAGNOSIS INFORMATION >
[QR25DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
DTC Inspection Priority Chart
INFOID:0000000010986263
P0171
P0172
Fuel injection system
×
—
—
—
P0197
P0198
Engine oil temperature sensor
—
—
—
Exhaust valve timing control does not function.
P0300
P0301
P0302
P0303
P0304
Misfire
×
—
—
—
P0500
Vehicle speed sensor
×
—
—
—
P0524
Engine oil pressure
—
—
—
• ECM illuminates oil pressure warning lamp on the combina-
tion meter.
• Engine speed will not rise more than 4,000rpm due to the
fuel cut.
• Fail-safe is canceled when ignition switch OFF
→
ON.
P0603
ECM power supply circuit
—
×
—
—
P0605
ECM
—
—
—
ECM stops the electric throttle control actuator control, throttle
valve is maintained at a fixed opening (approx. 5 degrees) by
the return spring.
P0643
Sensor power supply
—
—
—
ECM stops the electric throttle control actuator control, throttle
valve is maintained at a fixed opening (approx. 5 degrees) by
the return spring.
P1078
Exhaust valve timing control
position sensor circuit
×
—
×
—
P1568
Signal invalid
—
—
—
Active trace control does not function.
P1805
Brake switch
—
—
—
ECM controls the electric throttle control actuator by regulat-
ing the throttle opening to a small range.
Therefore, acceleration will be poor.
Vehicle condition
Driving condition
When engine is idling
Normal
When accelerating
Poor acceleration
P2004
Intake manifold runner control
valve
—
×
×
—
P2100
P2103
Throttle control motor relay
—
—
—
ECM stops the electric throttle control actuator control, throttle
valve is maintained at a fixed opening (approx. 5 degrees) by
the return spring.
P2101
Electric throttle control func-
tion
—
—
—
ECM stops the electric throttle control actuator control, throttle
valve is maintained at a fixed opening (approx. 5 degrees) by
the return spring.
P2118
Throttle control motor
—
—
—
ECM stops the electric throttle control actuator control, throttle
valve is maintained at a fixed opening (approx. 5 degrees) by
the return spring.
P2119
Electric throttle control actua-
tor
—
×
—
—
P2122
P2123
P2127
P2128
P2138
Accelerator pedal position
sensor
—
—
—
The ECM controls the electric throttle control actuator in reg-
ulating the throttle opening in order for the idle position to be
within +10 degrees.
The ECM regulates the opening speed of the throttle valve to
be slower than the normal condition.
So, the acceleration will be poor.
DTC
No.
Detected items
Vehicle behavior
Pattern
Others
A
B
C
EC-516
< ECU DIAGNOSIS INFORMATION >
[QR25DE]
ECM
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
Priority
DTC
Detected items
1
U0101, U1001
CAN communication line
P0102, P0103
Mass air flow sensor
P0112, P0113
Intake air temperature sensor
P0117, P0118
Engine coolant temperature sensor
P0122, P0123, P0222, P0223, P1225, P1226, P2135
Throttle position sensor
P0197, P0198
Engine oil temperature sensor
P0327, P0328
Knock sensor
P0335
Crankshaft position sensor (POS)
P0340
Camshaft position sensor (PHASE)
P0500
Vehicle speed sensor
P0520
Engine oil pressure sensor
P0603, P0604, P0605, P0606, P0607, P060A, P060B
ECM
P0643
Sensor power supply
P0850
Transmission range switch
P1078
Exhaust valve timing control position sensor
P1610, P1611, P1612, P1615
NATS
P2014, P2016, P2017, P2018
Intake manifold runner control valve position sensor
P2122, P2123, P2127, P2128, P2138
Accelerator pedal position sensor
2
P0031, P0032
Air fuel ratio (A/F) sensor 1 heater
P0037, P0038
Heated oxygen sensor 2 heater
P0075
Intake valve timing control solenoid valve/Intake valve timing
intermediate lock control solenoid valve
P0078
Exhaust valve timing control solenoid valve
P0130, P0131, P0132, P014C, P014D
Air fuel ratio (A/F) sensor 1
P0137, P0138
Heated oxygen sensor 2
P0444
EVAP canister purge volume control solenoid valve
P1217
Engine over temperature (OVERHEAT)
P1805
Brake switch
P2004
Intake manifold runner control valve
P2100, P2103
Throttle control motor relay
P2101
Electric throttle control function
P2118
Throttle control motor
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст