Nissan Note [1578/1872] Ec 1578

Nissan Note [1578/1872] Ec 1578
EC-1578
[HR (WITHOUT EURO-OBD)]
IAT SENSOR
3. CHECK INTAKE AIR TEMPERATURE SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect mass air flow sensor (intake air temperature sensor
is built-into) (1) harness connector.
: Vehicle front
3. Turn ignition switch ON.
4. Check voltage between mass air flow sensor terminal 5 and
ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
4. CHECK INTAKE AIR TEMPERATURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between mass air flow sensor terminal 6 and ECM terminal 55.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
5. CHECK INTAKE AIR TEMPERATURE SENSOR
Refer to EC-1579, "
Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Replace mass air flow sensor (with intake air temperature sensor).
6. CHECK INTERMITTENT INCIDENT
Refer to EC-1336, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>> INSPECTION END
PBIB2948E
Voltage: Approximately 5V
PBIB1169E
Continuity should exist.

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