Infiniti FX35, FX50 (S51). Manual - part 736

 

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Infiniti FX35, FX50 (S51). Manual - part 736

 

 

INFORMATION DISPLAY (ASCD)

EC-485

< DTC/CIRCUIT DIAGNOSIS >

[VQ35HR]

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INFORMATION DISPLAY (ASCD)

Description

INFOID:0000000005237101

The ASCD operation status is indicated by two indicators (CRUISE and SET on the information display) on the
combination meter.
CRUISE indicator is displayed to indicated that ASCD system is ready for operation when MAIN switch on
ASCD steering switch is turned ON.
SET indicator is displayed when the following conditions are met.
• CRUISE indicator is displayed.
• SET/COAST switch on ASCD steering switch is turned ON while vehicle speed is within the range of the

ASCD setting. The set speed is also displayed on the information display.

SET indicator is displayed during ASCD control.
When the canceling conditions come into effect, the CRUISE and SET indications on the information display
disappear.

Component Function Check

INFOID:0000000005237102

1.

CHECK INFORMATION DISPLAY

1.

Start engine.

2.

Press MAIN switch on ASCD steering switch.

3.

Drive the vehicle at more than 40 km/h (25 MPH)

CAUTION:

Always drive vehicle at a safe speed.

4.

Press SET/COAST switch.

5.

Check that the readings of the speedometer show the same values as the set speed indicated in the infor-
mation display while driving the vehicle on a flat road.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Go to 

EC-485, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005237103

1.

CHECK DTC

Check that DTC UXXXX, P0500 or P1574 is not displayed.
Is the inspection result normal?

YES

>> GO TO 2.

NO-1

>> Perform trouble diagnosis for DTC UXXXX.

NO-2

>> Perform trouble diagnosis for DTC P0500. Refer to 

EC-346, "Diagnosis Procedure"

.

NO-3

>> Perform trouble diagnosis for DTC P1574. Refer to 

EC-435, "Diagnosis Procedure"

.

2.

CHECK DTC WITH “UNITIED MATER & A/C AMP.”

Refer to 

MWI-45, "CONSULT-III Function (METER/M&A)"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Perform trouble diagnosis relevant to DTC indicated.

3.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-36, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace combination meter.

NO

>> Repair or replace.

EC-486

< DTC/CIRCUIT DIAGNOSIS >

[VQ35HR]

MALFUNCTION INDICATOR LAMP

MALFUNCTION INDICATOR LAMP

Description

INFOID:0000000005237104

The Malfunction Indicator Lamp (MIL) is located on the combination
meter.
The MIL will illuminate when the ignition switch is turned ON without
the engine running. This is a bulb check.
When the engine is started, the MIL should turn off. If the MIL
remains illuminated, the on board diagnostic system has detected an
engine system malfunction.
For details, refer to 

EC-111, "Diagnosis Description"

.

Component Function Check

INFOID:0000000005237105

1.

CHECK MALFUNCTION INDICATOR LAMP (MIL) FUNCTION

1.

Turn ignition switch ON.

2.

Check that MIL illuminates.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Go to 

EC-486, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005237106

1.

CHECK DTC

Check that DTC UXXXX is not displayed.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Perform trouble diagnosis for DTC UXXXX.

2.

CHECK DTC WITH “UNIFIED METER AND A/C AMP.”

Refer to 

MWI-45, "CONSULT-III Function (METER/M&A)"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace malfunctioning part.

3.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-36, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace combination meter.

NO

>> Repair or replace malfunctioning part.

SEF217U

ON BOARD REFUELING VAPOR RECOVERY (ORVR)

EC-487

< DTC/CIRCUIT DIAGNOSIS >

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ON BOARD REFUELING VAPOR RECOVERY (ORVR)

Description

INFOID:0000000005237107

From the beginning of refueling, the air and vapor inside the fuel tank go through refueling EVAP vapor cut
valve and EVAP/ORVR line to the EVAP canister. The vapor is absorbed by the EVAP canister and the air is
released to the atmosphere.
When the refueling has reached the full level of the fuel tank, the refueling EVAP vapor cut valve is closed and
refueling is stopped because of auto shut-off. The vapor which was absorbed by the EVAP canister is purged
during driving.

WARNING:

When conducting inspections below, be sure to observe the following:
• Put a “CAUTION: FLAMMABLE” sign in workshop.
• Never smoke while servicing fuel system. Keep open flames and sparks away from work area.
• Always furnish the workshop with a CO

2

 fire extinguisher.

CAUTION:

• Before removing fuel line parts, carry out the following procedures:
- Put drained fuel in an explosion-proof container and put lid on securely.
- Release fuel pressure from fuel line. Refer to 

EC-566, "Inspection"

.

- Disconnect battery ground cable.
• Always replace O-ring when the fuel gauge retainer is removed.
• Never kink or twist hose and tube when they are installed.
• Never tighten hose and clamps excessively to avoid damaging hoses.
• After installation, run engine and check for fuel leaks at connections.
• Never attempt to top off the fuel tank after the fuel pump nozzle shuts off automatically.

Continued refueling may cause fuel overflow, resulting in fuel spray and possibly a fire.

Component Function Check

INFOID:0000000005237108

1.

CHECK ORVR FUNCTION

Check whether the following symptoms are present.
• Fuel odor from EVAP canister is strong.
• Cannot refuel/Fuel odor from the fuel filler opening is strong while refueling.
Are any symptoms present?

YES

>> Go to 

EC-487, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005237109

1.

INSPECTION START

Check whether the following symptoms are present.
A: Fuel odor from EVAP canister is strong.

PBIB1068E

EC-488

< DTC/CIRCUIT DIAGNOSIS >

[VQ35HR]

ON BOARD REFUELING VAPOR RECOVERY (ORVR)

B: Cannot refuel/Fuel odor from the fuel filler opening is strong while refueling.

Which symptom is present?

A

>> GO  TO  2.

B

>> GO  TO  7.

2.

CHECK EVAP CANISTER

1.

Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.

2.

Weigh the EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
The weight should be less than 2.1 kg (4.6 lb).

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 4.

3.

CHECK IF EVAP CANISTER IS SATURATED WITH WATER

Check if water will drain from EVAP canister (1).

Does water drain from the EVAP canister?

YES

>> GO TO 4.

NO

>> GO TO 6.

4.

REPLACE EVAP CANISTER

Replace EVAP canister with a new one.

>> GO TO 5.

5.

DETECT MALFUNCTIONING PART

Check the EVAP hose between EVAP canister and vehicle frame for clogging or poor connection.

>> Repair or replace EVAP hose.

6.

CHECK REFUELING EVAP VAPOR CUT VALVE

Refer to 

EC-490, "Component Inspection"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace refueling EVAP vapor cut valve with fuel tank.

7.

CHECK EVAP CANISTER

1.

Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.

2.

Weigh the EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor
attached.
The weight should be less than 2.1 kg (4.6 lb).

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> GO TO 9.

8.

CHECK IF EVAP CANISTER IS SATURATED WITH WATER

2

: EVAP canister vent control valve

PBIB2731E

 

 

 

 

 

 

 

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