Nissan Qashqai (2007-2010). Manual — part 471
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P2120 APP SENSOR
EC-1403
< COMPONENT DIAGNOSIS >
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P2120 APP SENSOR
Description
INFOID:0000000001098978
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensors detect the accelera-
tor pedal position and sends a signal to the ECM. The ECM uses the
signal to determine the amount of fuel to be injected.
DTC Logic
INFOID:0000000001115105
DTC DETECTION LOGIC
NOTE:
• If DTC P2120 is displayed with DTC P0641, first perform trouble diagnosis for DTC P0641. Refer to
• Conditions for applying the diagnostic procedure to the stored DTCs:
- The DTC is declared present after a series of full load-no load accelerator pedal actions have been carried
out (engine stopped, ignition on).
• If the DTC is present:
- Malfunction indicator (Red) lights up.
Diagnosis Procedure
INFOID:0000000000970745
1.
CHECK GROUND CONNECTIONS
1.
Turn ignition switch OFF.
2.
Check ground connection E17. Refer to Ground inspection in
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace ground connection.
2.
CHECK ACCELERATOR PEDAL POSITION SENSOR POWER SUPPLY CIRCUIT
1.
Disconnect accelerator pedal position sensor harness connector.
2.
Turn ignition switch ON.
3.
Check the voltage between accelerator pedal position sensor connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
3.
CHECK ACCELERATOR PEDAL POSITION SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
PBIB1741E
DTC No.
Trouble diagnosis name
Possible cause
P2120
ACCELERATOR PEDAL POSITION SENSOR 2 CIRCUIT
• CC.1: Short circuit to +12V
• CO.0: Open circuit or short circuit to ground
• Harness or connectors
(APP sensor 2 circuit is open or shorted.)
• Accelerator pedal position sensor
(APP sensor 2)
Accelerator pedal position sensor
Ground
Voltage
Sensor
Connector
Terminal
2
E110
5
Ground
Approx. 5V
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EC-1404
< COMPONENT DIAGNOSIS >
[K9K]
P2120 APP SENSOR
2.
Disconnect accelerator pedal position sensor.
3.
Check the continuity between accelerator pedal position sensor harness connector and ECM harness
connector.
4.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
CHECK ACCELERATOR PEDAL POSITION SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Check the continuity between accelerator pedal position sensor harness connector and ECM harness
connector.
2.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.
CHECK ACCELERATOR PEDAL POSITION SENSOR
EC-1359, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace accelerator pedal position sensor.
6.
CHECK INTERMITTENT INCIDENT
GI-39, "Intermittent Incident"
>> INSPECTION END
Component Inspection
INFOID:0000000001098962
1.
CHECK ACCELERATOR PEDAL POSITION SENSOR
1.
Turn ignition switch OFF.
2.
Disconnect accelerator pedal position sensor harness connector.
3.
Check resistance between accelerator pedal position sensor as follows.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace accelerator pedal position sensor.
Accelerator pedal position sensor
ECM
Continuity
Sensor
Connector
Terminal
Connector
Terminal
2
E110
1
E60
120
Existed
Accelerator pedal position sensor
ECM
Continuity
Sensor
Connector
Terminal
Connector
Terminal
2
E110
6
E60
119
Existed
Sensor
Terminals
Resistance
1
2 and 4
1.7
±
0.9 K
Ω
2
1 and 5
2.85
±
2.05 K
Ω
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P2226 BARO SENSOR
EC-1405
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P2226 BARO SENSOR
Description
INFOID:0000000000970747
The barometric pressure sensor is built into ECM. The sensor
detects ambient barometric pressure and sends the voltage signal to
the microcomputer.
DTC Logic
INFOID:0000000001115106
DTC DETECTION LOGIC
NOTE:
• Conditions for applying the diagnostic procedure to the stored DTCs:
The DTC is declared present after the ignition has been switched on for at least 10 seconds.
• Special note:
The barometric pressure sensor is integrated into the ECM, and cannot be separated.
Diagnosis Procedure
INFOID:0000000000970749
1.
REPLACE ECM
1.
Perform
EC-1273, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair
.
2.
Perform
EC-1274, "EGR VOLUME CONTROL VALVE CLOSED POSITION LEARNING : Special Repair
.
>> INSPECTION END
MBIB1517E
DTC No.
Trouble diagnosis name
Possible cause
P2226
BAROMETRIC PRESSURE SENSOR CIRCUIT
• CC.1: Short circuit to +12V
• CO.0: Short circuit to ground or open circuit
• CO.0: Micro -breaks
• ECM
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EC-1406
< COMPONENT DIAGNOSIS >
[K9K]
P2263 TC SYSTEM
P2263 TC SYSTEM
DTC Logic
INFOID:0000000001115107
DTC DETECTION LOGIC
NOTE:
• Conditions for applying the diagnostic procedure to the stored DTCs:
The DTC becomes present after the engine is started.
• If the DTC is present:
• Malfunction indicator (Red) lights up.
Diagnosis Procedure
INFOID:0000000000970753
1.
CECHECK VACUUM HOSES AND VACUUM GALLERY
1.
Turn ignition switch OFF.
2.
Check vacuum hoses and vacuum gallery for clogging, cracks
or improper connection. Refer to
.
Is the inspection result normal?
Yes
>> Repair or replace.
No
>> GO TO 2.
2.
CHECK AIR FILTER
Check that air filter is not obstructed.
Is the inspection result normal?
Yes
>> Repair or replace.
No
>> GO TO 3.
3.
CHECK INTAKE AIR DUCT
Check that intake air duct is not obstructed.
Is the inspection result normal?
Yes
>> Repair or replace.
No
>> GO TO 4.
4.
CHECK VACUUM PUMP
Check vacuum pump.
Is the inspection result normal?
Yes
>> Repair or replace.
No
>> GO TO 5.
5.
CHECK TURBOCHARGER
DTC No.
Trouble diagnosis name
Possible cause
P2263
AIR INLET CIRCUIT
• 1.DEF: Permanent at minimum limit
• 2.DEF: Permanent at maximum limit
• Harness or connectors
(Turbocharger boost control solenoid valve circuit
is open or shorted.)
• Air inlet circuit
• Vacuum pump
• Vacuum hose
• Turbocharger
• Turbocharger boost control solenoid valve
• Turbocharger boost sensor
• Electric throttle control actuator
SEF109L
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