2005 INFINITI QX4 turn signal

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Page 1607 of 3419

INFINITI QX4 2005  Factory Service Manual EC-416Revision: October 2005
DTC P1146, P1166 HO2S2
2005 QX56
DTC Confirmation ProcedureUBS00H85
NOTE:
If DTC confirmation Procedure has been previously conducted, always turn ignition switch OFF and

Page 1614 of 3419

INFINITI QX4 2005  Factory Service Manual DTC P1146, P1166 HO2S2
EC-423
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Revision: October 20052005 QX56
3. CHECK HO2S2 GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect heated oxygen sensor

Page 1616 of 3419

INFINITI QX4 2005  Factory Service Manual DTC P1146, P1166 HO2S2
EC-425
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Revision: October 20052005 QX56
Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread
Cleaner tool J-438

Page 1618 of 3419

INFINITI QX4 2005  Factory Service Manual DTC P1147, P1167 HO2S2
EC-427
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EC
Revision: October 20052005 QX56
DTC Confirmation ProcedureUBS00H8E
NOTE:
If DTC confirmation Procedure has been previously conducted, always tur

Page 1625 of 3419

INFINITI QX4 2005  Factory Service Manual EC-434Revision: October 2005
DTC P1147, P1167 HO2S2
2005 QX56
3. CHECK HO2S2 GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect heated oxygen sensor 2 harness connector.
3. D

Page 1627 of 3419

INFINITI QX4 2005  Factory Service Manual EC-436Revision: October 2005
DTC P1147, P1167 HO2S2
2005 QX56
Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread
Cleaner tool J-43897-18 or J-43897-12 and ap

Page 1630 of 3419

INFINITI QX4 2005  Factory Service Manual DTC P1212 TCS COMMUNICATION LINE
EC-439
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Revision: October 20052005 QX56
DTC P1212 TCS COMMUNICATION LINEPFP:47850
DescriptionUBS00H8P
NOTE:
If DTC P1212 is displayed with DTC

Page 1641 of 3419

INFINITI QX4 2005  Factory Service Manual EC-450Revision: October 2005
DTC P1225 TP SENSOR
2005 QX56
DTC P1225 TP SENSORPFP:16119
Component DescriptionUBS00H91
Electric throttle control actuator consists of throttle control motor,
throttle po