2003 NISSAN ALMERA N16 Electronic Repair Manual

Page 969 of 3189

NISSAN ALMERA N16 2003  Electronic Repair Manual HO2S2 HEATER
EC-639
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Wiring DiagramEBS00KKI
YEC315A

Page 970 of 3189

NISSAN ALMERA N16 2003  Electronic Repair Manual EC-640
[QG (WITHOUT EURO-OBD)]
HO2S2 HEATER
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/out

Page 971 of 3189

NISSAN ALMERA N16 2003  Electronic Repair Manual HO2S2 HEATER
EC-641
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2.CHECK HO2S2 POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect heated oxygen sensor 2 harness connector.
3. T

Page 972 of 3189

NISSAN ALMERA N16 2003  Electronic Repair Manual EC-642
[QG (WITHOUT EURO-OBD)]
HO2S2 HEATER
5. CHECK HEATED OXYGEN SENSOR 2 HEATER
Refer to EC-642, "
Component Inspection" .
OK or NG
OK >> GO TO 6.
NG >> Replace heated oxygen sensor 2.
6. C

Page 973 of 3189

NISSAN ALMERA N16 2003  Electronic Repair Manual IAT SENSOR
EC-643
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IAT SENSORPFP:22630
Component DescriptionEBS00KKM
The intake air temperature sensor is built into mass air flow sensor.
The  sensor

Page 974 of 3189

NISSAN ALMERA N16 2003  Electronic Repair Manual EC-644
[QG (WITHOUT EURO-OBD)]
IAT SENSOR
Wiring Diagram
EBS00KKN
YEC317A

Page 975 of 3189

NISSAN ALMERA N16 2003  Electronic Repair Manual IAT SENSOR
EC-645
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Diagnostic ProcedureEBS00KKO
1.CHECK OVERALL FUNCTION
1. Turn ignition switch “ON”.
2. Check voltage between ECM terminal 34 and

Page 976 of 3189

NISSAN ALMERA N16 2003  Electronic Repair Manual EC-646
[QG (WITHOUT EURO-OBD)]
IAT SENSOR
4. CHECK INTAKE AIR TEMPERATURE SENSOR
Refer to EC-646, "
Component Inspection" .
OK or NG
OK >> GO TO 5.
NG >> Replace mass air flow sensor (with int