Infiniti FX35 / FX45. Manual - part 447

ASCD INDICATOR

EC-549

< SERVICE INFORMATION >

[VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 2.

2.

CHECK DTC

Check that DTC U1000 or U1001 is not displayed.
OK or NG

OK

>> GO TO 3.

NG

>> Perform trouble diagnoses for DTC U1000, U1001. Refer to 

EC-146

.

3.

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

Refer to 

DI-27, "CONSULT-III Function (METER/M&A)"

.

OK or NG

OK

>> GO TO 4.

NG

>> Go to 

DI-30, "DTC [B2202] Meter Communication Circuit"

.

4.

CHECK INTERMITTENT INCIDENT

Refer to 

EC-139

.

>> INSPECTION END

ASCD INDICATOR

CONDITION

SPECIFICATION

CRUISE LAMP

• Ignition switch: ON

• MAIN switch: pressed at the 1st 

time 

→

 at the 2nd time

ON 

→

 OFF

SET LAMP

• MAIN switch: ON
• When vehicle speed is be-

tween 40km/h (25MPH) and 
144km/h (89MPH)

ASCD: Operating

ON

ASCD: Not operating

OFF

EC-550

< SERVICE INFORMATION >

[VQ35DE]

ELECTRICAL LOAD SIGNAL

ELECTRICAL LOAD SIGNAL

Description

INFOID:0000000001326435

The electrical load signal (Headlamp switch signal, etc.) is transferred through the CAN communication line
from BCM to ECM via IPDM E/R.

CONSULT-III Reference Value in Data Monitor Mode

INFOID:0000000001326436

Specification data are reference values.

Diagnosis Procedure

INFOID:0000000001326437

1.

CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-I

1.

Turn ignition switch ON.

2.

Connect CONSULT-III and select “DATA MONITOR” mode.

3.

Select “LOAD SIGNAL” and check indication under the following conditions.

OK or NG

OK

>> GO TO 2.

NG

>> GO TO 4.

2.

CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-II

Check “LOAD SIGNAL” indication under the following conditions.

OK or NG

OK

>> GO TO 3.

NG

>> GO TO 5.

3.

CHECK HEATER FAN SIGNAL CIRCUIT OVERALL FUNCTION

Check “HEATER FAN SW” in “DATA MONITOR” mode with CONSULT-III under the following conditions.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 6.

4.

CHECK REAR WINDOW DEFOGGER SYSTEM

MONITOR ITEM

CONDITION

SPECIFICATION

LOAD SIGNAL

• Ignition switch: ON

Rear window defogger switch is ON 
and/or lighting switch is in 2nd.

ON

Rear window defogger switch is OFF 
and lighting switch is OFF.

OFF

HEATER FAN SW

• Engine: After warming up, idle the 

engine

Heater fan: Operating.

ON

Heater fan: Not operating

OFF

Condition

Indication

Rear window defogger switch: ON

ON

Rear window defogger switch: OFF

OFF

Condition

Indication

Lighting switch: ON at 2nd position

ON

Lighting switch: OFF

OFF

Condition

Indication

Heater fan: Operating

ON

Heater fan: Not operating

OFF

ELECTRICAL LOAD SIGNAL

EC-551

< SERVICE INFORMATION >

[VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Refer to 

GW-60

.

>> INSPECTION END

5.

CHECK HEADLAMP SYSTEM

Refer to 

LT-5

.

>> INSPECTION END

6.

CHECK HEATER FAN CONTROL SYSTEM

Refer to 

ATC-32

.

>> INSPECTION END

EC-552

< SERVICE INFORMATION >

[VQ35DE]

FUEL INJECTOR

FUEL INJECTOR

Component Description

INFOID:0000000001326438

The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the fuel injector circuit, the coil in the fuel injec-
tor is energized. The energized coil pulls the Ball valve back and
allows fuel to flow through the fuel injector into the intake manifold.
The amount of fuel injected depends upon the fuel injection pulse
duration. Pulse duration is the length of time the fuel injector remains
open. The ECM controls the injection pulse duration based on
engine fuel needs.

CONSULT-III Reference Value in Data Monitor Mode

INFOID:0000000001326439

Specification data are reference values.

SEF375Z

MONITOR ITEM

CONDITION

SPECIFICATION

B/FUEL SCHDL

See 

EC-131

.

INJ PULSE-B1
INJ PULSE-B2

• Engine: After warming up
• Selector lever: P or N
• Air conditioner switch: OFF
• No  load

Idle

2.0 - 3.0 msec

2,000 rpm

1.9 - 2.9 msec