2014 NISSAN TEANA Service Manual

Page 1521 of 4801

NISSAN TEANA 2014  Service Manual 
ON BOARD REFUELING VAPOR RECOVERY (ORVR)EC-521
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
C 
D E
F
G H
I
J
K L
M A
EC
NP
O
Is the inspection result normal?
YES >> INSPECTION END 
NO >> Replace refueling EVAP

Page 1522 of 4801

NISSAN TEANA 2014  Service Manual 
EC-522
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
ON BOARD REFUELING VAPOR RECOVERY (ORVR)
Is the inspection result normal?
YES >> INSPECTION END 
NO >> Replace refueling EVAP vapor cut valve with fuel tank.

Page 1523 of 4801

NISSAN TEANA 2014  Service Manual 
REFRIGERANT PRESSURE SENSOREC-523
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
C 
D E
F
G H
I
J
K L
M A
EC
NP
O
REFRIGERANT PRESSURE SENSOR
Component Function CheckINFOID:0000000009462456
1.CHECK REFRIGERANT P

Page 1524 of 4801

NISSAN TEANA 2014  Service Manual 
EC-524
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
REFRIGERANT PRESSURE SENSOR
3.CHECK REFRIGERANT PRESSURE SENSOR GROUND CIRCUIT
1. Turn ignition switch OFF. 
2. Disconnect ECM harness connector. 
3. Check th

Page 1525 of 4801

NISSAN TEANA 2014  Service Manual 
SENSOR POWER SUPPLY 2 CIRCUITEC-525
< DTC/CIRCUIT DIAGNOSIS > [QR25DE]
C 
D E
F
G H
I
J
K L
M A
EC
NP
O
SENSOR POWER SUPPLY 2 CIRCUIT
DescriptionINFOID:0000000009462458
ECM supplies a voltage of 5 V

Page 1526 of 4801

NISSAN TEANA 2014  Service Manual 
EC-526
< DTC/CIRCUIT DIAGNOSIS >[QR25DE]
SENSOR POWER SUPPLY 2 CIRCUIT
3.CHECK SENSOR POWER SUPPLY 2 CIRCUIT
1. Disconnect following sensors harness connector. 
2. Check harness for short to power an

Page 1527 of 4801

NISSAN TEANA 2014  Service Manual 
ENGINE CONTROL SYSTEMEC-527
< SYMPTOM DIAGNOSIS > [QR25DE]
C 
D E
F
G H
I
J
K L
M A
EC
NP
O
SYMPTOM DIAGNOSIS
ENGINE CONTROL SYSTEM
Symptom TableINFOID:0000000009462460
SYSTEM — BASIC ENGINE CONTRO

Page 1528 of 4801

NISSAN TEANA 2014  Service Manual 
EC-528
< SYMPTOM DIAGNOSIS >[QR25DE]
ENGINE CONTROL SYSTEM
Mass air flow sensor circuit
1
12 2
222 2 EC-228, 
EC-232
Intake air temperature sensor circuit EC-240, 
EC-241
Engine coolant temperature s