Infiniti QX56 (Z62). Manual — part 639

EC-534

< PERIODIC MAINTENANCE >

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POSITIVE CRANKCASE VENTILATION

POSITIVE CRANKCASE VENTILATION

Inspection

INFOID:0000000006218033

1.

CHECK PCV VALVE

With engine running at idle, remove PCV valve from rocker cover. A
properly working valve makes a hissing noise as air passes through
it. A strong vacuum should be felt immediately when a finger is
placed over valve inlet.
Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace PCV valve. Refer to

EM-33, "Exploded View"

.

PBIB1589E

ECM

EC-535

< REMOVAL AND INSTALLATION >

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REMOVAL AND INSTALLATION

ECM

Removal and Installation

INFOID:0000000006218034

REMOVAL

1.

Remove the battery and battery tray. Refer to

PG-164, "Removal and Installation"

.

2.

Disconnect ECM harness connectors (1) as shown in the figure.

3.

Remove ECM bracket bolts (A).

4.

Separate ECM (2) and ECM bracket (3).

INSTALLATION

Install in the reverse order of removal.

CAUTION:

Must be perform additional service when replacing ECM. Refer to

EC-143, "Work Procedure"

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JSBIA0307ZZ

EC-536

< REMOVAL AND INSTALLATION >

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VVEL CONTROL MODULE

VVEL CONTROL MODULE

Removal and Installation

INFOID:0000000006218035

REMOVAL

1.

Disconnect VVEL control module harness connector.

2.

Remove the fix bolts. And then remove VVEL control module.

INSTALLATION

Install in the reverse order of removal.

CAUTION:

Must be perform additional service when replacing VVEL control module. Refer to

EC-144, "Work Pro-

cedure"

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FUEL PUMP CONTROL MODULE (FPCM)

EC-537

< REMOVAL AND INSTALLATION >

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FUEL PUMP CONTROL MODULE (FPCM)

Removal and Installation

INFOID:0000000006218036

REMOVAL

1.

Remove the luggage side finisher lower (LH). Refer to

INT-36, "LUGGAGE SIDE LOWER FINISHER :

Removal and Installation"

.

2.

Disconnect fuel pump control module (FPCM) connector.

3.

Remove mounting bolts and then remove fuel pump control module (FPCM).

INSTALLATION

Install in the reverse order of removal.