Nissan Qashqai J11. Manual — part 302
P0107, P0108 BAROMETRIC PRESSURE SENSOR
ECM-185
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
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P0107, P0108 BAROMETRIC PRESSURE SENSOR
DTC Description
INFOID:0000000010702909
DTC DETECTION LOGIC
POSSIBLE CAUSE
• Harness or connectors
- The barometric pressure sensor circuit is open or shorted.
- Sensor power supply circuit 2 is shorted.
• Barometric pressure sensor
• Sensor of Sensor power supply circuit 2
FAIL-SAFE
Not applicable
DTC CONFIRMATION PROCEDURE
1.
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 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start engine and let it idle at least 5 seconds.
2.
Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Proceed to
ECM-185, "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:0000000010702910
1.
CHECK BAROMETRIC PRESSURE SENSOR POWER SUPPLY-1
1.
Turn ignition switch OFF.
2.
Disconnect barometric pressure sensor harness connector.
3.
Turn ignition switch ON.
4.
Check the voltage between barometric pressure sensor harness connectors.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> GO TO 2.
2.
CHECK BAROMETRIC PRESSURE SENSOR POWER SUPPLY-2
Check the voltage between barometric pressure sensor harness connector and ground.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P0107
ABSL PRES SEN/CIRC
An excessively low voltage from the sensor is sent to ECM.
P0108
ABSL PRES SEN/CIRC
An excessively high voltage from the sensor is sent to ECM.
Barometric pressure sensor
Voltage
Connector
+
–
Terminal
F144
1
3
Approx. 5 V
ECM-186
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
P0107, P0108 BAROMETRIC PRESSURE SENSOR
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 3.
3.
CHECK BAROMETRIC PRESSURE SENSOR POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check the continuity between barometric pressure sensor harness connector and ECM harness connec-
tor.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace malfunctioning part.
4.
CHECK SENSOR POWER SUPPLY 2
ECM-392, "Diagnosis Procedure"
.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace malfunctioning part.
5.
CHECK BAROMETRIC PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check the continuity between barometric pressure sensor harness connector and ECM harness connec-
tor.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace malfunctioning part.
6.
CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT
Check the voltage between ECM harness connector and ground.
+
Ground
Voltage
Barometric pressure sensor
Connector
Terminal
F144
1
Ground
Approx. 5 V
+
−
Continuity
Barometric pressure sensor
ECM
Connector
Terminal
Connector
Terminal
F144
1
E57
101
Existed
+
–
Continuity
Barometric pressure sensor
ECM
Connector
Terminal
Connector
Terminal
F144
3
E57
124
Existed
P0107, P0108 BAROMETRIC PRESSURE SENSOR
ECM-187
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
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Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair or replace malfunctioning part.
7.
CHECK BAROMETRIC PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Check the continuity between barometric pressure sensor harness connector and ECM harness connec-
tor.
2.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Repair or replace malfunctioning part.
8.
CHECK BAROMETRIC PRESSURE SENSOR
ECM-187, "Component Inspection"
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace barometric pressure sensor. Refer to
ECM-14, "ENGINE CONTROL SYSTEM : Compo-
Component Inspection
INFOID:0000000010702911
1.
COMPONENT FUNCTION CHECK
1.
Turn ignition switch ON.
2.
Check the voltage between ECM harness connector terminals as follows.
NOTE:
Since this sensor is an absolute pressure sensor, values vary with ambient pressure and altitude.
3.
Measure the barometric pressure.
NOTE:
As the barometric pressure described on the synoptic chart is the value at sea level, compensate the
pressure with the following chart.
+
Ground
Continuity
ECM
Connector
Terminal
F15
11
Ground
Existed
E57
123
125
128
+
−
Barometric pressure sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
F144
2
E57
97
Existed
ECM
Connector
+
−
Terminal
E57
97
124
ECM-188
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
P0107, P0108 BAROMETRIC PRESSURE SENSOR
4.
Check that the voltage is within a specified range as in the following chart.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace barometric pressure sensor. Refer to
ECM-14, "ENGINE CONTROL SYSTEM : Compo-
Altitude (m)
Compensated pressure
(hPa)
0
0
200
−
24
400
−
47
600
−
70
800
−
92
1,000
−
114
1,500
−
168
2,000
−
218
Barometric pressure (hPa)
Voltage (V)
800
3.1 – 3.7
850
3.3 – 3.9
900
3.5 – 4.1
950
3.8 – 4.3
1,000
4.0 – 4.6
1,050
4.2 – 4.8
JMBIA0870GB
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