2010 NISSAN TIIDA Service Repair Manual

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Page 1417 of 3745

NISSAN TIIDA 2010 Service Repair Manual EC-152
< COMPONENT DIAGNOSIS >[HR16DE]
P0102, P0103 MAF SENSOR
P0102 >> GO TO 2.
P0103 >> GO TO 3.
2.CHECK INTAKE SYSTEM
Check the following for connection.
• Air duct
• Vacuum hoses
• Intake ai

Page 1418 of 3745

NISSAN TIIDA 2010 Service Repair Manual P0102, P0103 MAF SENSOREC-153
< COMPONENT DIAGNOSIS > [HR16DE]
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2. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO

Page 1419 of 3745

NISSAN TIIDA 2010 Service Repair Manual EC-154
< COMPONENT DIAGNOSIS >[HR16DE]
P0102, P0103 MAF SENSOR
*: Check for linear voltage rise in response to engine being increased to about 4,000 rpm.
Is the inspection result normal?
YES >> INSPEC

EC-154
< COMPONENT DIAGNOSIS >[HR16DE]
P0102, P0103 MAF SENSOR
*: Check for linear voltage rise in response to engine being increased to about 4,000 rpm.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.CHECK FOR THE CAUSE OF UNEVEN AIR FL
OW THROUGH MASS AIR FLOW SENSOR
1. Turn ignition switch OFF.
2. Check for the cause of uneven air flow through mass air flow sensor. Refer to the following.
- Crushed air ducts
- Malfunctioning seal of air cleaner element
- Uneven dirt of air cleaner element
- Improper specification of intake air system parts
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.CHECK MASS AIR FLOW SENSOR-II
With CONSULT-III
1. Repair or replace malfunctioning part.
2. Start engine and warm it up to normal operating temperature.
3. Connect CONSULT-III and select “DATA MONITOR” mode.
4. Select “MAS A/F SE-B1” and check indication.
*: Check for linear voltage rise in response to engine being increased to about 4,000 rpm.
Without CONSULT-III
1. Repair or replace malfunctioning part.
2. Start engine and warm it up to normal operating temperature.
3. Check the voltage between ECM harness connector and ground.
*: Check for linear voltage rise in response to engine being increased to about 4,000 rpm.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 4.
4.CHECK MASS AIR FLOW SENSOR-III
With CONSULT-III
1. Turn ignition switch OFF.
2. Disconnect mass air flow sensor harness connector and reconnect it again.
3. Start engine and warm it up to normal operating temperature.
Monitor item Condition MAS A/F SE-B1
MAS A/F SE-B1 Ignition switch ON (Engine stopped.)
Approx. 0.4 V
Idle (Engine is warmed-up to normal operating temperature.) 0.9 - 1.3 V
2,500 rpm (Engine is warmed-up to normal operating temperature.) 1.4 - 1.9 V
Idle to about 4,000 rpm 0.9 - 1.3 V to Approx. 2.4 V*
ECM Ground Condition Voltage
Con-
nector Te r m i -
nal
F11 45
(MAF
sensor
signal) Ground Ignition switch ON (Engine stopped.) Approx. 0.4 V
Idle (Engine is warmed-up to normal
operating temperature.)
0.9 - 1.3 V
2,500 rpm (Engine is warmed-up to
normal operating temperature.) 1.4 - 1.9 V
Idle to about 4,000 rpm 0.9 - 1.3 V to
Approx. 2.4 V*
PBIA9564J
Revision: January 20102010 Versa

Page 1420 of 3745

NISSAN TIIDA 2010 Service Repair Manual P0102, P0103 MAF SENSOREC-155
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4. Connect CONSULT-III and select “DATA MONITOR” mode.
5. Select “MAS A/F SE-B1” and check indica

Page 1421 of 3745

NISSAN TIIDA 2010 Service Repair Manual EC-156
< COMPONENT DIAGNOSIS >[HR16DE]
P0112, P0113 IAT SENSOR
P0112, P0113 IAT SENSOR
DescriptionINFOID:0000000005398329
The intake air temperature sensor
is built-into mass air flow sensor
(1). The

Page 1422 of 3745

NISSAN TIIDA 2010 Service Repair Manual P0112, P0113 IAT SENSOREC-157
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Wiring DiagramINFOID:0000000005398331
Diagnosis ProcedureINFOID:0000000005398332
1.CHECK GROUND CONNECTIO

Page 1423 of 3745

NISSAN TIIDA 2010 Service Repair Manual EC-158
< COMPONENT DIAGNOSIS >[HR16DE]
P0112, P0113 IAT SENSOR
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK INTAKE AIR TEMPERATURE
SENSOR POWER SUPPLY CIRCUIT
1. Disconnect mass

Page 1424 of 3745

NISSAN TIIDA 2010 Service Repair Manual P0116 ECT SENSOREC-159
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P0116 ECT SENSOR
DescriptionINFOID:0000000005398334
The engine coolant temperature sensor is used to detect the

P0116 ECT SENSOREC-159
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P0116 ECT SENSOR
DescriptionINFOID:0000000005398334
The engine coolant temperature sensor is used to detect the engine
coolant temperature. The sensor
modifies a voltage signal from the
ECM. The modified signal returns to the ECM as the engine coolant
temperature input. The sensor uses a thermistor which is sensitive to
the change in temperature. The electrical resistance of the ther-
mistor decreases as temperature increases.

*: These data are reference values and are measured between ECM terminal 38
(Engine coolant temperature sensor) and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output vo ltage. Doing so may result in damage to the ECM's transis-
tor. Use a ground other than ECM terminals, such as the ground.
DTC LogicINFOID:0000000005398335
DTC DETECTION LOGIC
NOTE:
If DTC P0116 is displayed with P0117 or P0118, first perform the trouble diagnosis for DTC P0117,
P0118. Refer to EC-161, "
DTC Logic".
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 warm it up to normal operating temperature.
2. Rev engine up to 2,000 rpm for more than 10 minutes.
3. Move the vehicle to a cool place, then stop engine and turn ignition switch OFF.
4. Check resistance between “fuel level s ensor unit and fuel pump” terminals 4 and 5.
SEF594K
Engine coolant temperature
[° C ( °F)] Voltage* (V)
Resistance (kΩ)
–10 (14) 4.47.0 - 11.4
20 (68) 3.52.37 - 2.63
50 (122) 2.20.68 - 1.00
90 (194) 0.90.236 - 0.260
SEF012P
DTC No. Trouble diagnosis name DTC detecting conditionPossible cause
P0116 Engine coolant temperature
sensor circuit range/perfor-
mance Engine coolant temperature signal from engine
coolant temperature sensor does not fluctuate,
even when some time has passed after starting
the engine with pre-warming up condition. • Harness or connectors
(High or low resistance in the circuit)
• Engine coolant temperature sensor
Revision: January 20102010 Versa

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