2003 NISSAN TEANA Service Manual

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NISSAN TEANA 2003  Service Manual HO2S2 HEATER
EC-319
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HO2S2 HEATERPFP:226A0
DescriptionBBS005JA
SYSTEM DESCRIPTION
The ECM performs ON/OFF control of the heated oxygen sensor 2 heater corresponding to

Page 1602 of 3502

NISSAN TEANA 2003  Service Manual EC-320
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HO2S2 HEATER
 
Wiring DiagramBBS005JC
TBWM1542E

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NISSAN TEANA 2003  Service Manual HO2S2 HEATER
EC-321
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Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
CAUTION:
Do not

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NISSAN TEANA 2003  Service Manual EC-322
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HO2S2 HEATER
 
2. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten two ground screws on the body.
Refer to E C - 111 ,  "
Ground Inspection" .
OK or NG
OK >> G

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NISSAN TEANA 2003  Service Manual HO2S2 HEATER
EC-323
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5. CHECK HO2S2 OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continui

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NISSAN TEANA 2003  Service Manual EC-324
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IAT SENSOR
 
IAT SENSORPFP:22630
Component DescriptionBBS005JG
The intake air temperature sensor is built into mass air flow sensor.
The sensor detects intake air temperature and transmits

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NISSAN TEANA 2003  Service Manual IAT SENSOR
EC-325
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Wiring DiagramBBS005JH
TBWM1543E

Page 1608 of 3502

NISSAN TEANA 2003  Service Manual EC-326
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IAT SENSOR
 
Diagnostic ProcedureBBS005JI
1. CHECK OVERALL FUNCTION
1. Turn ignition switch ON.
2. Check voltage between ECM terminal 34 and ground with CON-
SULT-II or tester.
OK or NG
OK