Nissan Qashqai J11. Manual — part 332
P062B ECM
ECM-305
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
C
D
E
F
G
H
I
J
K
L
M
A
ECM
N
P
O
YES
>> GO TO 2.
NO
>> Repair or replace error-detected parts.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Erase DTC.
3.
Perform DTC confirmation procedure again. Refer to
.
4.
Check 1st trip DTC.
Is the DTC P062B displayed again?
YES
>> Replace ECM. Refer to
ECM-416, "Removal and Installation"
NO
>> INSPECTION END
ECM-306
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
P0643 SENSOR POWER SUPPLY
P0643 SENSOR POWER SUPPLY
DTC Description
INFOID:0000000010702999
ECM supplies a voltage of 5 V to some of the sensors systematically divided into 2 groups, respectively.
Accordingly, when a short circuit develops in a sensor power source, a malfunction may occur simultaneously
in the sensors belonging to the same group as the short-circuited sensor.
Sensor power supply 1
• CKP sensor (POS)
• APP sensor 1
• Exhaust valve timing control position sensor
• Electric throttle control actuator
NOTE:
If sensor power supply 1 circuit is malfunctioning, DTC P0643 is displayed.
Sensor power supply 2
• Barometric pressure sensor
• Refrigerant pressure sensor
• Fuel rail pressure sensor
• CMP sensor
• APP sensor 2
• Engine oil pressure sensor
DTC DETECTION LOGIC
POSSIBLE CAUSE
• Harness or connectors
- APP sensor 1 circuit is shorted.
- CKP sensor (POS) circuit is shorted.
- Intake manifold runner control valve position sensor circuit is shorted.
- TP sensor circuit is shorted.
- Refrigerant pressure sensor circuit is shorted.
• Accelerator pedal position sensor
• CKP sensor (POS)
• Intake manifold runner control valve position sensor
• Throttle position sensor
• Refrigerant pressure sensor
FAIL-SAFE
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1.
Turn ignition switch OFF and wait at least 10 seconds.
2.
Turn ignition switch ON.
3.
Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 8 V at idle.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P0643
SENSOR POWER/CIRC
(Sensor reference voltage “A” circuit high)
ECM detects that the voltage of sensor power supply 1 is excessively low
or high.
Engine operating condition in fail-safe mode
Fail safe mode
Vehicle behavior
Others
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-307
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
C
D
E
F
G
H
I
J
K
L
M
A
ECM
N
P
O
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start engine and let it idle for 1 second.
2.
Check DTC.
Is DTC detected?
YES
>> Proceed to
ECM-307, "Diagnosis Procedure"
.
NO-1
>> To check malfunction symptom before repair: Refer to
GI-41, "Intermittent Incident"
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010703000
1.
CHECK ACCELERATOR PEDAL POSITION SENSOR 1 POWER SUPPLY CIRCUIT
1.
Disconnect accelerator pedal position (APP) sensor harness connector.
2.
Turn ignition switch ON.
3.
Check the voltage between APP sensor harness connector and ground.
Is the inspection result normal?
YES
>> Proceed to
ECM-359, "Component Inspection"
NO
>> GO TO 2.
2.
CHECK SENSOR POWER SUPPLY CIRCUITS
Check harness for short to power and short to ground, between the following terminals.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace malfunctioning part.
3.
CHECK COMPONENTS
Check the following.
• Exhaust valve timing control position sensor (Refer to
ECM-315, "Component Inspection"
)
• Crankshaft position sensor (Refer to
ECM-261, "Component Inspection"
• Throttle position sensor (Refer to
ECM-196, "Component Inspection"
)
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair or replace malfunctioning part.
+
−
Voltage
(Approx.)
APP sensor
Connector
Terminal
E20
4
Ground
5 V
ECM
Sensor
Connector
Terminal
Name
Connector
Terminal
F15
21
Crankshaft position sensor
F85
1
24
Exhaust valve timing control position sensor
F36
1
F16
60
Throttle position sensor
F45
2
E57
122
APP sensor 1
E20
4
ECM-308
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
P0850 REVERSE/NEUTRAL POSITION SWITCH
P0850 REVERSE/NEUTRAL POSITION SWITCH
CVT
CVT : DTC Description
INFOID:0000000010703001
Transmission range switch is turn ON when the selector lever is P or N.
ECM detects the position because the continuity of the line (the ON) exists.
DTC DETECTION LOGIC
POSSIBLE CAUSE
• Harness or connectors (Park/neutral position signal circuit is open or shorted.)
• Transmission range switch
FAIL-SAFE
Not applicable
DTC CONFIRMATION PROCEDURE
1.
INSPECTION START
Do you have CONSULT?
Do you have CONSULT?
YES
>> GO TO 2.
NO
>> GO TO 5.
2.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
>> GO TO 3.
3.
CHECK PNP SIGNAL FUNCTION
With CONSULT
1.
Turn ignition switch ON.
2.
Select “P/N POSI SW” in “DATA MONITOR” mode with CONSULT. Then check the “P/N POSI SW” signal
under the following conditions.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Proceed to
ECM-309, "CVT : Diagnosis Procedure"
.
4.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Select “DATA MONITOR” mode with CONSULT.
2.
Start engine and warm it up to normal operating temperature.
3.
Maintain the following conditions for at least 50 consecutive seconds.
CAUTION:
Always drive vehicle at a safe speed.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P0850
P-N POS SW/CIRCUIT
(Park/neutral switch input circuit)
The signal of transmission range switch is not changed in the process of
engine starting and driving.
Position (Shift lever)
Known-good signal
N or P position
ON
Except above position
OFF
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст