2001 INFINITI QX4 Factory Service Manual

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Page 985 of 2395

INFINITI QX4 2001 Factory Service Manual SEF353Z PROCEDURE FOR MALFUNCTION B=NBEC0696S02With CONSULT-IINBEC0696S02011) Turn ignition switch ªONº. 2) Select ªDATA MONITORº mode with CONSULT-II. 3) Maintain the following conditions for at

Page 986 of 2395

INFINITI QX4 2001 Factory Service Manual SEF354Z Component DescriptionNBEC0697Intake valve timing control solenoid valve is activated by ON/OFF pulse duty (ratio) signals from the ECM. The intake valve timing control solenoid valve changes t

Page 987 of 2395

INFINITI QX4 2001 Factory Service Manual On Board Diagnosis LogicNBEC0700Malfunction is detected when an improper voltage is sent to the ECM through intake valve timing control solenoid valve. Possible CauseNBEC0701IHarness or connectors (In

Page 988 of 2395

INFINITI QX4 2001 Factory Service Manual Wiring DiagramNBEC0703RIGHT BANKNBEC0703S01 MEC989C GI MA EM LC FE AT TF PD AX SU BR ST RS BT HA SC EL IDX D T C P 1111(RIGHT, -B1), P1136 (LEFT, -B2) INTAKE VALVE TIMING CONTROL SOLENOID VALVE (CIRCU

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INFINITI QX4 2001 Factory Service Manual LEFT BANKNBEC0703S02 MEC988C D T C P 1111(RIGHT, -B1), P1136 (LEFT, -B2) INTAKE VALVE TIMING CONTROL SOLENOID VALVE (CIRCUIT) Wiring Diagram (Contd) EC-454

Page 990 of 2395

INFINITI QX4 2001 Factory Service Manual Diagnostic ProcedureNBEC0704 1 CHECK OVERALL FUNCTION With CONSULT-II 1. Start engine and warm it up to normal operating temperature. 2. Perform ªTARGET INT/V TIMº in ªACTIVE TESTº mode with CONSU

Page 991 of 2395

INFINITI QX4 2001 Factory Service Manual 2 INTAKE VALVE TIMING CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT 1. Stop engine. 2. Disconnect intake valve timing control solenoid valve harness connector. SEF357Z 3. Turn ignition switch ªONº. 4.

Page 992 of 2395

INFINITI QX4 2001 Factory Service Manual 5 CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE Check resistance between intake valve timing control solenoid valve terminals as follows. SEF358Z OK or NG OK©GO TO 6. NG©Repair intake valve timin
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