2003 NISSAN TEANA Service Manual

Page 1697 of 3502

NISSAN TEANA 2003  Service Manual TROUBLE DIAGNOSIS
EC-415
[VQ]
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ECM Harness Connector Terminal LayoutBBS004YD
ECM Terminals and Reference ValueBBS004YE
PREPARATION
1. ECM is located behind the glove box. Fo

Page 1698 of 3502

NISSAN TEANA 2003  Service Manual EC-416
[VQ]
TROUBLE DIAGNOSIS
 
2OHeated oxygen sensor 1 
heater (Bank 1)[Engine is running]
Warm-up condition
Engine speed: Below 3,600 rpmApproximately 8V
[Engine is running]
Warm-up condition
E

Page 1699 of 3502

NISSAN TEANA 2003  Service Manual TROUBLE DIAGNOSIS
EC-417
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10 YIntake valve timing control 
solenoid valve (Bank 2)[Engine is running]
Warm-up condition
Idle speedBATTERY VOLTAGE
(11 - 14V)
[Engine i

Page 1700 of 3502

NISSAN TEANA 2003  Service Manual EC-418
[VQ]
TROUBLE DIAGNOSIS
 
14 WCamshaft position sensor 
(PHASE) (Bank 2)[Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle changes depending on rpm 
at idle1.0 - 4.0V
[Engi

Page 1701 of 3502

NISSAN TEANA 2003  Service Manual TROUBLE DIAGNOSIS
EC-419
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25 P/BHeated oxygen sensor 2 
heater (Bank 1)[Engine is running]
Engine speed: Below 3,600 rpm after the 
following conditions are met
–Eng

Page 1702 of 3502

NISSAN TEANA 2003  Service Manual EC-420
[VQ]
TROUBLE DIAGNOSIS
 
40
41
42P/B
LG/R
R/WFuel injector No. 6
Fuel injector No. 4
Fuel injector No. 2[Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle changes dependin

Page 1703 of 3502

NISSAN TEANA 2003  Service Manual TROUBLE DIAGNOSIS
EC-421
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51 W Mass air flow sensor[Ignition switch: ON]Approximately 0.4V
[Engine is running]
Warm-up condition
Idle speed0.9 - 1.1V (VQ23DE engine)

Page 1704 of 3502

NISSAN TEANA 2003  Service Manual EC-422
[VQ]
TROUBLE DIAGNOSIS
 
70 W Refrigerant pressure sensor[Engine is running]Warm-up condition
Both A/C switch and blower fan switch: ON 
(Compressor operates)1.0 - 4.0V
73 LGEngine coolant te