immobilizer INFINITI QX4 2001 Factory Service Manual

INFINITI QX4 2001 Factory Service Manual QX4 2001 INFINITI INFINITI https://www.carmanualsonline.info/img/42/57027/w960_57027-0.png INFINITI QX4 2001 Factory Service Manual

Page 583 of 2395

INFINITI QX4 2001  Factory Service Manual 9 CHECK ECM FUNCTION
1. Substitute another known-good ECM to check ECM function. (ECM may be the cause of a problem, but this is rarely
the case.)
2. Perform initialization of IVIS (NATS) system and r

Page 584 of 2395

INFINITI QX4 2001  Factory Service Manual 13 PERFORM IDLE AIR VOLUME LEARNING
Refer to ªIdle Air Volume Learningº, EC-57.
Which is the result CMPLT or INCMP?
CMPLT or INCMP
CMPLT©GO TO 14.
INCMP©1. Follow the construction of ªIdle Air vo

Page 609 of 2395

INFINITI QX4 2001  Factory Service Manual Actual work procedures are explained using a DTC as an example. Be careful so that not only the DTC, but
all of the data listed above, are cleared from the ECM memory during work procedures.
IVIS (INF

Page 648 of 2395

INFINITI QX4 2001  Factory Service Manual 23 CHECK TARGET IDLE SPEED AGAIN
With CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Select ªENG SPEEDº in ªDATA MONITORº mode with CONSULT-II.
3. Check idle speed.

Page 650 of 2395

INFINITI QX4 2001  Factory Service Manual 31 PERFORM IDLE AIR VOLUME LEARNING
Refer to ªIdle Air Volume Learningº, EC-57.
Which is the result CMPLT or INCMP?
CMPLT or INCMP
CMPLT©GO TO 32.
INCMP©1. Follow the construction of ªIdle Air vo

Page 657 of 2395

INFINITI QX4 2001  Factory Service Manual SYMPTOM
Reference
section
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING

Page 980 of 2395

INFINITI QX4 2001  Factory Service Manual Diagnostic ProcedureNBEC0274
1 INSPECTION START
With CONSULT-II
1. Turn ignition switch ªONº.
2. Select ªSELF DIAG RESULTSº mode with CONSULT-II.
3. Touch ªERASEº.
4.Perform ªDTC Confirmation P

Page 1188 of 2395

INFINITI QX4 2001  Factory Service Manual Schematic ................................................................255
Wiring Diagram - D/LOCK -.....................................256
Trouble Diagnoses.......................................

Page 1513 of 2395

INFINITI QX4 2001  Factory Service Manual Component Parts and Harness Connetor
Location
NBEL0170
SEL357X
NOTE:
If customer reports a ªNo Startº condition, request ALL KEYS
to be brought to an INFINITI dealer in case of an IVIS (NATS)
malfun

Page 1514 of 2395

INFINITI QX4 2001  Factory Service Manual System Description=NBEL0171NATS (Nissan Anti-Theft System) has the following immobilizer functions:
ISince only IVIS (NATS) ignition keys, whose ID nos. have been registered into the ECM and IMMU of I
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