Nissan Tiida C11. Instruction — part 619
EC-1126
< COMPONENT DIAGNOSIS >
[K9K]
P0100 MAF SENSOR
1.
Turn ignition switch OFF.
2.
Reconnect all harness connectors disconnected.
3.
Turn ignition switch ON.
4.
Check the voltage between mass air flow sensor harness connector.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace mass air flow sensor.
Mass air flow sensor
Voltage
Connector
Terminal
F31
2
(Mass air flow sensor
ground)
6
(Mass air flow sensor sig-
nal)
0.3 - 0.7V
P0101 MAF SENSOR
EC-1127
< COMPONENT DIAGNOSIS >
[K9K]
C
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EC
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P0101 MAF SENSOR
Description
INFOID:0000000001162573
The mass air flow sensor is placed in the stream of intake air.
• Intake air temperature sensor (1)
DTC Logic
INFOID:0000000001162574
DTC DETECTION LOGIC
NOTE:
• If DTC P0101 is displayed with DTC P0641, first perform trouble diagnosis for DTC P0641. Refer to
.
Diagnosis Procedure
INFOID:0000000001162575
1.
CHECK AIR FILTER
Check that air filter is not obstructed.
Is the inspection result normal?
Yes
>> Repair or replace.
No
>> GO TO 2.
2.
CHECK INTAKE AIR DUCT
Check that intake air duct is not obstructed.
Is the inspection result normal?
Yes
>> Repair or replace.
No
>> GO TO 3.
3.
CHECK GROUND CONNECTIONS
1.
Turn ignition switch OFF.
2.
Check ground connection E15. Refer to Ground inspection in
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace ground connection.
4.
CHECK MASS AIR FLOW SENSOR POWER SUPPLY CIRCUIT-I
1.
Turn ignition switch OFF.
2.
Disconnect mass air flow sensor harness connector.
3.
Turn ignition switch ON.
4.
Check the voltage between mass air flow sensor harness connector and ground.
MBIB1523E
DTC No.
Trouble diagnosis name
Possible cause
P0101
REQUESTED AIR FLOW
• 1.DEF: Signal outside lower level
• 2.DEF: Signal outside upper level
• Harness or connectors
(The sensor circuit is open or shorted.)
• Mass air flow sensor
• Intake air leaks
• Intake air duct obstructed
• Air filter obstructed
EC-1128
< COMPONENT DIAGNOSIS >
[K9K]
P0101 MAF SENSOR
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 MASS AIR FLOW SENSOR POWER SUPPLY CIRCUIT-II
Check the voltage between mass air flow sensor harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
6.
CHECK MASS AIR FLOW SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check the continuity between mass air flow 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 7.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
7.
CHECK MASS AIR FLOW SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Check the continuity between mass air flow 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 8.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
8.
CHECK MASS AIR FLOW SENSOR
EC-1129, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Replace mass air flow sensor.
9.
CHECK INTERMITTENT INCIDENT
GI-55, "Intermittent Incident"
>> INSPECTION END
Mass air flow sensor
Ground
Voltage
Connector
Terminal
F31
4
Ground
Battery voltage
Mass air flow sensor
Ground
Voltage
Connector
Terminal
F31
5
Ground
Approx. 5V
Mass air flow sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
F31
2
F10
30
Existed
Mass air flow sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
F31
6
F10
35
Existed
P0101 MAF SENSOR
EC-1129
< COMPONENT DIAGNOSIS >
[K9K]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
Component Inspection
INFOID:0000000001162576
1.
CHECK MASS AIR FLOW SENSOR
1.
Turn ignition switch OFF.
2.
Reconnect all harness connectors disconnected.
3.
Turn ignition switch ON.
4.
Check the voltage between mass air flow sensor harness connector.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace mass air flow sensor.
Mass air flow sensor
Voltage
Connector
Terminal
F31
2
(Mass air flow sensor
ground)
6
(Mass air flow sensor sig-
nal)
0.3 - 0.7V
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