Nissan X-Trail 32. Manual — part 986
P0638 ELECTRIC THROTTLE CONTROL ACTUATOR FUNCTION
EC-1073
< DTC/CIRCUIT DIAGNOSIS >
[R9M]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
P0638 ELECTRIC THROTTLE CONTROL ACTUATOR FUNCTION
DTC Description
INFOID:0000000010935759
DTC DETECTION LOGIC
POSSIBLE CAUSE
• Electric throttle control actuator
• Throttle valve stuck
• Throttle chamber clogged
FAIL-SAFE
• EGR valve is closed position
• Throttle control motor is opened
• CSF regeneration forbidden
• Compression test routine inhibited
• Airflow regulation cut off
• CCSL deactivation with dashboard message
• Freeshift inhibited
DTC CONFIRMATION PROCEDURE
1.
CHECK DTC PRIORITY
If DTC P0638 is displayed with DTC P0120 or P2100, first perform the trouble diagnosis for DTC P0120 or
P2100.
Is applicable DTC detected?
YES
>> Perform diagnosis of applicable. Refer to
.
NO
>> GO TO 2.
2.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 1 minute before conducting the next test.
>> GO TO 3.
3.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON and wait at least 3 seconds.
2.
Check DTC.
Is DTC detected?
YES
>> Proceed to
EC-1073, "Diagnosis Procedure"
.
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010935760
1.
CHECK DTC PRIORITY
If DTC P0638 is displayed with DTC P0120 or P2100, first perform the trouble diagnosis for DTC P0120 or
P2100.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P0638
INLET AIR FLAP POSITION CTRL
(Throttle actuator control range/perfor-
mance bank 1)
• 1.DEF: NO RESPONSE FROM THE
VALVE MOTOR
• 2.DEF: INLET FLAP BLOCKED
CLOSED
• 3.DEF: INLET FLAP BLOCKED OPEN
• 4.DEF: CLOSING OF AIR INLET FLAP
• Throttle valve regulation error
• ECM detects an incorrect closed position of the throttle valve.
• ECM detects an incorrect fully open position of the throttle valve.
EC-1074
< DTC/CIRCUIT DIAGNOSIS >
[R9M]
P0638 ELECTRIC THROTTLE CONTROL ACTUATOR FUNCTION
Is applicable DTC detected?
YES
>> Perform diagnosis of applicable. Refer to
.
NO
>> GO TO 2.
2.
CHECK ECM HARNESS CONNECTOR CONNECTIONS
1.
Turn ignition switch OFF.
2.
Check ECM harness connector connection.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace error-detected parts.
3.
CHECK ELECTRIC THROTTLE CONTROL ACTUATOR HARNESS CONNECTOR CONNECTIONS
Check electric throttle control actuator harness connector connection.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace error-detected parts.
4.
CHECK ELECTRIC THROTTLE CONTROL ACTUATOR CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Check electric throttle control actuator circuit for open and short.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace error-detected parts.
5.
DTC CONFIRMATION PROCEDURES
1.
Erase DTC.
2.
Perform DTC confirmation procedure again. Refer to
.
Is the DTC P0638 displayed again?
YES
>> GO TO 6.
NO
>> INSPECTION END
6.
CHECK ELECTRIC THROTTLE CONTROL ACTUATOR
Perform
EC-1011, "Component Inspection (Throttle Position Sensor)"
(throttle position sensor),
(throttle control motor).
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 7.
7.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1.
Replace electric throttle control actuator.
2.
.
>> INSPECTION END
+
-
Continuity
ECM
Electric throttle control actu-
ator
Connector
Terminal
Connector
Terminal
F118
103
F153
2
Existed
107
3
108
1
140
5
152
4
P0641 SENSOR POWER SUPPLY
EC-1075
< DTC/CIRCUIT DIAGNOSIS >
[R9M]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
P0641 SENSOR POWER SUPPLY
DTC Description
INFOID:0000000010935761
DTC DETECTION LOGIC
POSSIBLE CAUSE
• Harness or connectors (The sensor power supply 1 circuit is shorted.)
• High pressure EGR volume control valve position sensor
• Throttle position sensor
• Intake manifold runner control valve position sensor
• DPF differential pressure sensor
• TC boost sensor
• Low pressure EGR volume control valve position sensor
• Camshaft position sensor
• APP sensor 1
FAIL-SAFE
• EGR valve is closed position
• Throttle control motor is opened
• The pressure downstream turbo exists then the limit: Otherwise cut regulation turbo
• Limited upstream turbine pressure regulation if the sensor is present: Otherwise, the boost pressure regula-
tion is cut
• Torque limitation
• Airflow regulation cut off
• CSF regeneration forbidden
• CCSL deactivation with dashboard message
• Freeshift inhibited
• Increased idle speed
• After sales routines forbidden
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 1 minute before conducting the next test.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON and wait at least 1 second.
2.
Check DTC.
Is DTC detected?
YES
>> Proceed to
EC-1075, "Diagnosis Procedure"
.
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010935762
1.
CHECK SENSOR POWER SUPPLY
1.
Turn ignition switch ON.
2.
Check the voltage between ECM harness connector and ground.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P0641
SEN SUPPLY N-1 VOL
(Sensor reference voltage “A” circuit/open)
• 1.DEF: VOLTAGE TOO LOW
• 2.DEF: VOLTAGE TOO HIGH
• A voltage of sensor power supply is 5.3 V or more.
• A voltage of sensor power supply is 4.7 V or less.
EC-1076
< DTC/CIRCUIT DIAGNOSIS >
[R9M]
P0641 SENSOR POWER SUPPLY
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
CHECK SENSOR POWER SUPPLY CIRCUITS
1.
Turn ignition switch OFF.
2.
Check harness for short to power and short to ground, between the following terminals.
*1: CVT models
*2: M/T models
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair short to ground or short to power in harness or connectors.
3.
CHECK COMPONENTS
Check the following.
• Accelerator pedal position sensor (sensor 1). Proceed to
EC-1180, "Diagnosis Procedure"
• Low pressure EGR volume control valve position sensor. Proceed to
EC-1108, "Component Inspection (Low
Pressure EGR Volume Control Valve Motor)"
• Camshaft position sensor. Proceed to
EC-1035, "Component Inspection (Camshaft Position Sensor)"
.
• Turbocharger boost sensor. Proceed to
EC-1002, "Component Inspection (Turbocharger Boost Sensor)"
.
• MAF sensor. Proceed to
EC-998, "Component Inspection (Mass Air Flow Sensor)"
• DPF pressure sensor. Proceed to
EC-1193, "Diagnosis Procedure"
• High pressure EGR volume control valve position sensor. Proceed to
EC-1044, "Diagnosis Procedure"
.
• Throttle position sensor. Proceed to
EC-1011, "Component Inspection (Throttle Position Sensor)"
.
• Intake manifold runner control valve position sensor. Proceed to
EC-1092, "Diagnosis Procedure"
.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace malfunctioning component.
+
−
Voltage
(Approx.)
ECM
Connectors
Terminal
E79
6
Ground
5 V
F117
55
59
F118
100
108
112
ECM
Sensor
Connector
Terminal
Name
Connector
Terminal
E79
6
Accelerator pedal position sensor (sensor 1)
E110
*1
E167
*2
4
F117
55
Low pressure EGR volume control valve position sensor
F155
1
Camshaft position sensor
F151
1
59
Turbocharger boost sensor
F146
3
MAF sensor
F152
3
F118
100
DPF differential pressure sensor
F88
1
108
High pressure EGR volume control valve position sensor
F156
4
Throttle position sensor
F153
1
112
Intake manifold runner control valve position sensor
F147
1
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст