Infiniti M35/M45 Y50. Manual — part 552

FUEL PUMP

EC-681

[VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

15.

CHECK FUEL PUMP

Refer to

EC-681, "Component Inspection"

.

OK or NG

OK

>> GO TO 16.

NG

>> Replace fuel pump.

16.

CHECK INTERMITTENT INCIDENT

Refer to

EC-153, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

.

OK or NG

OK

>> Replace IPDM E/R.

NG

>> Repair or replace harness or connectors.

Component Inspection

NBS00583

FUEL PUMP

1.

Turn ignition switch OFF.

2.

Disconnect “fuel level sensor unit and fuel pump” harness connector.

3.

Check resistance between “fuel level sensor unit and fuel pump”
terminals 1 and 3.

DROPPING RESISTOR

1.

Turn ignition switch OFF.

2.

Disconnect dropping resistor harness connector.

3.

Check resistance between dropping resistor terminals 1 and 2.

CONDENSER

1.

Turn ignition switch OFF.

2.

Disconnect condenser harness connector.

Resistance: 0.2 - 5.0

Ω

[at 25

°

C (77

°

F)]

SEC918C

Resistance: Approximately 0.9

Ω

[at 20

°

C (68

°

F)]

PBIB0100E

EC-682

[VQ35DE]

FUEL PUMP

3.

Check resistance between condenser terminals 1 and 2.

Removal and Installation

NBS00584

FUEL PUMP

Refer to

FL-4, "FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY"

.

Resistance: Above 1 M

Ω

[at 25

°

C (77

°

F)]

PBIB0794E

ICC BRAKE SWITCH

EC-683

[VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

ICC BRAKE SWITCH

PFP:25320

Component Description

NBS0058C

When the brake pedal is depressed, ICC brake switch (2) is turned
OFF and stop lamp switch (1) is turned ON. ECM detects the state of
the brake pedal by this input of two kinds (ON/OFF signal).
Refer to

ACS-6, "DESCRIPTION"

for the ICC function.

CONSULT-II Reference Value in Data Monitor Mode

NBS0058D

Specification data are reference values.

PBIB2705E

MONITOR ITEM

CONDITION

SPECIFICATION

BRAKE SW1
(ICC brake switch)

●

Ignition switch: ON

Brake pedal: Fully released

ON

Brake pedal: Slightly depressed

OFF

BRAKE SW2
(Stop lamp switch)

●

Ignition switch: ON

Brake pedal: Fully released

OFF

Brake pedal: Slightly depressed

ON

EC-684

[VQ35DE]

ICC BRAKE SWITCH

Wiring Diagram

NBS0058E

TBWT1000E