2007 INFINITI QX56 ignition

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INFINITI QX56 2007  Factory Service Manual EC-62
< SERVICE INFORMATION >
ON BOARD DIAGNOSTIC (OBD) SYSTEM
4. Touch “ERASE”. [The DTC in the TCM (Transmission control module) will be erased.] Then touch “BACK”
twice.
5. Touch “ENGINE

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INFINITI QX56 2007  Factory Service Manual ON BOARD DIAGNOSTIC (OBD) SYSTEM
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< SERVICE INFORMATION >
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Actual work procedures are explained using a DTC as an example. Be careful so that not only the DTC, but

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INFINITI QX56 2007  Factory Service Manual EC-64
< SERVICE INFORMATION >
ON BOARD DIAGNOSTIC (OBD) SYSTEM
When any SRT codes are not set, MIL may flash without DTC. For the details, refer to EC-49, "Emission-
related Diagnostic Information".
H

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INFINITI QX56 2007  Factory Service Manual EC-72
< SERVICE INFORMATION >
BASIC SERVICE PROCEDURE
2. Rev engine (2,000 to 3,000 rpm) two or three times under no
load, then run engine at idle speed for about 1 minute.
3. Read idle speed in “DA

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INFINITI QX56 2007  Factory Service Manual BASIC SERVICE PROCEDURE
EC-73
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1. Start engine and warm it up to normal operating temperature.
2. Read idle speed in “DATA MONITOR” mode with

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INFINITI QX56 2007  Factory Service Manual EC-74
< SERVICE INFORMATION >
BASIC SERVICE PROCEDURE
13.PERFORM IDLE AIR VOLUME LEARNING
Refer to EC-78, "
Idle Air Volume Learning" .
Is Idle Air Volume Learning carried out successfully?
Ye s  o r

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INFINITI QX56 2007  Factory Service Manual BASIC SERVICE PROCEDURE
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1. Substitute another known-good ECM to check ECM function. (ECM may be the cause of an incident, but
this is a ra

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INFINITI QX56 2007  Factory Service Manual EC-76
< SERVICE INFORMATION >
BASIC SERVICE PROCEDURE
2. Check ignition timing.
Method B
1. Remove ignition coil No.1.
2. Connect ignition coil No.1 and spark plug with suitable high-ten-
sion wire as