2001 INFINITI QX4 Factory Service Manual

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Page 865 of 2395

INFINITI QX4 2001 Factory Service Manual Wiring DiagramNBEC0189 MEC958C DTC P0325 KNOCK SENSOR (KS) Wiring Diagram EC-330

Page 866 of 2395

INFINITI QX4 2001 Factory Service Manual Diagnostic ProcedureNBEC0190 1 CHECK KNOCK SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-I 1. Turn ignition switch ªOFFº. 2. Disconnect ECM harness connector. 3. Check resistance between ECM termin

Page 867 of 2395

INFINITI QX4 2001 Factory Service Manual 4 CHECK KNOCK SENSOR Check resistance between knock sensor terminal 2 and ground. NOTE: It is necessary to use an ohmmeter which can measure more than 10 MW. SEF976Y CAUTION: Do not use any knock sens

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INFINITI QX4 2001 Factory Service Manual 8 CHECK INTERMITTENT INCIDENT Refer to ªTROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENTº, EC-140. ©INSPECTION ENDGI MA EM LC FE AT TF PD AX SU BR ST RS BT HA SC EL IDX DTC P0325 KNOCK SENSOR (KS) Diagn

Page 869 of 2395

INFINITI QX4 2001 Factory Service Manual SEF977Y Component DescriptionNBEC0191The crankshaft position sensor (POS) is located on the oil pan facing the gear teeth (cogs) of the signal plate (flywheel). It detects the crankshaft position sign

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INFINITI QX4 2001 Factory Service Manual ECM Terminals and Reference Value=NBEC0664Specification data are reference values and are measured between each terminal and ground. CAUTION: Do not use ECM ground terminals when measuring input/outpu

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INFINITI QX4 2001 Factory Service Manual SEF058Y DTC Confirmation ProcedureNBEC0194NOTE: If ªDTC Confirmation Procedureº has been previously conducted, always turn ignition switch ªOFFº and wait at least 10 seconds before conducting the

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INFINITI QX4 2001 Factory Service Manual Wiring DiagramNBEC0195 MEC959C GI MA EM LC FE AT TF PD AX SU BR ST RS BT HA SC EL IDX DTC P0335 CRANKSHAFT POSITION SENSOR (CKPS) (POS) Wiring Diagram EC-337
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