2001 NISSAN ALMERA TINO Service Repair Manual

Page 1369 of 3051

NISSAN ALMERA TINO 2001  Service Repair Manual SEF463R
SEF288D
Component DescriptionNLEC1780The heated oxygen sensor 1 (front) is placed into the exhaust
manifold. It detects the amount of oxygen in the exhaust gas com-
pared to the outside air. T

Page 1370 of 3051

NISSAN ALMERA TINO 2001  Service Repair Manual Wiring DiagramNLEC1786MODELS WITH ECM IN ENGINE COMPARTMENTNLEC1786S03
YEC744
HEATED OXYGEN SENSOR 1 (FRONT)SR20DE
Wiring Diagram
EC-945

Page 1371 of 3051

NISSAN ALMERA TINO 2001  Service Repair Manual MODELS WITH ECM IN CABINNLEC1786S04
YEC931
HEATED OXYGEN SENSOR 1 (FRONT)SR20DE
Wiring Diagram (Contd)
EC-946

Page 1372 of 3051

NISSAN ALMERA TINO 2001  Service Repair Manual Diagnostic ProcedureNLEC1789
1 INSPECTION START
Do you have CONSULT-II?
YesorNo
Ye s©GO TO 2.
No©GO TO 3.
2 CHECK OVERALL FUNCTION
With CONSULT-II
1. Start engine and warm it up to normal operating

Page 1373 of 3051

NISSAN ALMERA TINO 2001  Service Repair Manual 4 RETIGHTEN GROUND SCREWS
1. Turn ignition switch ªOFFº.
2. Loosen and retighten engine ground screws.
SEF202X
3. Disconnect heated oxygen sensor 1 (HO2S1) (front) harness connector.
SEF774Z
©GO TO

Page 1374 of 3051

NISSAN ALMERA TINO 2001  Service Repair Manual 7 CHECK HEATED OXYGEN SENSOR 1 (FRONT)
Refer to ªComponent Inspectionº, EC-949.
OK or NG
OK©GO TO 8.
NG©Replace heated oxygen sensor 1 (front).
8 CHECK INTERMITTENT INCIDENT
Perform ªTROUBLE DIAG

Page 1375 of 3051

NISSAN ALMERA TINO 2001  Service Repair Manual SEF648Y
SEF011X
Without CONSULT-II
1) Start engine and warm it up to normal operating temperature.
2) Set voltmeter probes between ECM terminal 62 (HO2S1 sig-
nal) and engine ground.
3) Check the foll

Page 1376 of 3051

NISSAN ALMERA TINO 2001  Service Repair Manual DescriptionNLEC1791SYSTEM DESCRIPTIONNLEC1791S01
Sensor Input Signal to ECMECM func-
tionActuator
Camshaft position sensor Engine speedHeated
oxygen
sensor 1
heater
(front) con-
trolHeated oxygen sens