2007 INFINITI QX56 key

EC-148
< SERVICE INFORMATION >
DTC U1010 CAN COMMUNICATION
2.REPLACE ECM
1. Replace ECM.
2. Perform initialization of IVIS (NATS) system and registration of all IVIS (NATS) ignition key IDs. Refer to
BL-117, "
ECM Re-communicating Function".
3. Perform EC-77, "
VIN Registration" .
4. Perform EC-77, "
Accelerator Pedal Released Position Learning" .
5. Perform EC-77, "
Throttle Valve Closed Position Learning" .
6. Perform EC-78, "
Idle Air Volume Learning" .
>>INSPECTION END

EC-432
< SERVICE INFORMATION >
DTC P0506 ISC SYSTEM
NG >> Discover air leak location and repair.
2.REPLACE ECM
1. Stop engine.
2. Replace ECM.
3. Perform initialization of IVIS(NATS) system and registration of all IVIS(NATS) ignition key IDs. Refer to
BL-117, "
ECM Re-communicating Function".
4. Perform EC-77, "
VIN Registration" .
5. Perform EC-77, "
Accelerator Pedal Released Position Learning" .
6. Perform EC-77, "
Throttle Valve Closed Position Learning" .
7. Perform EC-78, "
Idle Air Volume Learning" .
>>INSPECTION END

EC-434
< SERVICE INFORMATION >
DTC P0507 ISC SYSTEM
NG >> Repair or replace.
2.CHECK INTAKE AIR LEAK
1. Start engine and let it idle.
2. Listen for an intake air leak after the mass air flow sensor.
OK or NG
OK >> GO TO 3.
NG >> Discover air leak location and repair.
3.REPLACE ECM
1. Stop engine.
2. Replace ECM.
3. Perform initialization of IVIS(NATS) system and registration of all IVIS(NATS) ignition key IDs. Refer to
BL-117, "
ECM Re-communicating Function".
4. Perform EC-77, "
VIN Registration" .
5. Perform EC-77, "
Accelerator Pedal Released Position Learning" .
6. Perform EC-77, "
Throttle Valve Closed Position Learning" .
7. Perform EC-78, "
Idle Air Volume Learning" .
>>INSPECTION END

DTC P0603 ECM POWER SUPPLY
EC-443
< SERVICE INFORMATION >
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1. Replace ECM.
2. Perform initialization of IVIS(NATS) system and registration of all IVIS(NATS) ignition key IDs. Refer to
BL-117, "
ECM Re-communicating Function".
3. Perform EC-77, "
VIN Registration".
4. Perform EC-77, "
Accelerator Pedal Released Position Learning".
5. Perform EC-77, "
Throttle Valve Closed Position Learning".
6. Perform EC-78, "
Idle Air Volume Learning".
>>INSPECTION END

EC-446
< SERVICE INFORMATION >
DTC P0605 ECM
2. Perform initialization of IVIS(NATS) system and registration of all IVIS(NATS) ignition key IDs. Refer to
BL-117, "
ECM Re-communicating Function".
3. Perform EC-77, "
VIN Registration" .
4. Perform EC-77, "
Accelerator Pedal Released Position Learning" .
5. Perform EC-77, "
Throttle Valve Closed Position Learning" .
6. Perform EC-78, "
Idle Air Volume Learning" .
>>INSPECTION END

EC-482
< SERVICE INFORMATION >
DTC P1421 COLD START CONTROL
3.CHECK FUEL INJECTION SYSTEM FUNCTION
Perform EC-292, "
DTC Confirmation Procedure" in DTC P0171, P0174 FUEL INJECTION SYSTEM FUNC-
TION.
OK or NG
OK >> GO TO 4.
NG >> Go to EC-297, "
Diagnosis Procedure".
4.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT-II
1. Turn ignition switch ON.
2. Select “SELF DIAG RESULTS” mode with CONSULT-II.
3. Touch “ERASE”.
4.Perform DTC Confirmation Procedure.
See EC-481, "
DTC Confirmation Procedure".
5. Is the 1st trip DTC P1421 displayed again?
With GST
1. Turn ignition switch ON.
2. Select Service $04 with GST.
3.Perform DTC Confirmation Procedure.
See EC-481, "
DTC Confirmation Procedure".
4. Is the 1st trip DTC P1421 displayed again?
Ye s o r N o
Ye s > > G O T O 5 .
No >>INSPECTION END
5.REPLACE ECM
1. Replace ECM.
2. Perform initialization of IVIS (NATS) system and registration of all IVIS (NATS) ignition key IDs.
Refer to BL-117, "
ECM Re-communicating Function".
3. Perform EC-77, "
VIN Registration".
4. Perform EC-77, "
Accelerator Pedal Released Position Learning".
5. Perform EC-77, "
Throttle Valve Closed Position Learning".
6. Perform EC-78, "
Idle Air Volume Learning".
>>INSPECTION END

TIMING CHAINEM-41
< SERVICE INFORMATION >
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Check for cracks and any excessive wear
at link plates. Replace
chain if necessary.
• In the same way as for the LH bank, inspect the timing chain and associated parts on the RH bank.
INSTALLATION
NOTE:
• The above figure shows the relationship between the ma ting mark on each timing chain and that of the cor-
responding sprocket, with the components installed.
• To install the timing chain and associated parts, star t with those on the RH bank. The procedure for installing
parts on the LH bank is omitted because it is t he same as that for installation on the RH bank.
PBIC0282E
AWBIA0150ZZ
1. Camshaft sprocket RH bank INT
(VTC) 2. Camshaft sprocket RH bank EXH 3. Camshaft dowel pin RH bank
4. Timing chain RH bank 5. Timing chain slack guide RH bank 6. Chain tensioner (RH)
7. Crankshaft sprocket 8. Crankshaft key 9. Timing chain tension guide LH bank
10. Timing chain LH bank 11. Camshaft dowel pin LH bank 12. Camshaft sprocket LH bank EXH
13. Camshaft sprocket LH bank INT (VTC) 14. Chain tensioner LH 15. Timing chain tension guide RH bank
16. Timing chain slack guide LH bank A. LH bank B. RH bank
C. Alignment mark (Link color: copper) D . Alignment mark (Link color: copper) E. Alignment ma rk (Identification mark)
F. Alignment mark for LH bank (Notch) G. Alignment mark for LH bank (Link color: Yellow)H. Alignment mark for RH bank (Link
color: Yellow)
J. Alignment mark (Link color: copper) K. Alignment mark (Identification mark) L. Alignment mark (Identification mark)
M Alignment mark (Link color: copper) N. A lignment mark (Identification mark)

EM-42
< SERVICE INFORMATION >
TIMING CHAIN
1. Make sure the crankshaft key and camshaft dowel pin RH bankand camshaft dowel pin LH bank are facing in the direction
shown.
2. Install the camshaft sprockets. • Install the camshaft sprocket INT (VTC) (A) and camshaftsprockets EXH (B) by selectively using the groove of the
dowel pin according to the bank . (Common part used for both
exhaust banks.)
NOTE:
Use the groove marked "R" for RH bank and "L" for LH bank.
• Lock the hexagonal part of the camshaft in the same way as for removal, and tighten the bolts.
3. Install the crankshaft sprockets for both banks. • Install LH bank crankshaft sprocket (B) and RH bank crank-shaft sprocket (C) so that their flange side (A) (the larger diam-
eter side without teeth) faces in the direction shown.
NOTE:
The same parts are used but facing directions are different.
4. Install the timing chains and associated parts. • Align the alignment mark on each sprocket and the timing chain for installation.
CAUTION:
• Before installing timing chain tens ioner, it is possible to change the position of alignment mark
on timing chain and each sprocket. After the al ignment marks are aligned, keep them aligned
by holding them by hand.
• Install the slack guides and tension guides onto the co rrect side by checking the identification mark on
the surface.
• Install the chain tensioner with the plunger locked in with the stopper pin.
CAUTION:
• Before and after the installation of the chain tensioner, make sure that the alignment mark on
the timing chain is not out of alignment.
• After installing the chain tensioner, remove the stopper pin to release the chain tensioner.
Make sure the chain tensioner is released.
• To avoid chain-link skipping of the timing chain, do not move crankshaft or camshafts until the
front cover is installed.
5. In the same way as for the RH bank, install the timing chain and associated parts on the LH bank.
6. Install the oil pump.
SBIA0356E
AWBIA0151ZZ
WBIA0701E