Infiniti F50. Manual - part 505

INJECTOR CIRCUIT

EC-661

C

D

E

F

G

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EC

Component Inspection

EBS00MO5

INJECTOR

1.

Disconnect injector harness connector.

2.

Check resistance between terminals as shown in the figure.

Removal and Installation

EBS00MO6

INJECTOR

Refer to 

EM-31, "FUEL INJECTOR AND FUEL TUBE"

 .

Resistance: 13.5 - 17.5

Ω

 [at 20

°

C (68

°

F)]

PBIB1727E

EC-662

START SIGNAL

START SIGNAL

PFP:48750

CONSULT-II Reference Value in Data Monitor Mode

EBS00MO7

Specification data are reference values.

MONITOR ITEM

CONDITION

SPECIFICATION

START SIGNAL

●

Ignition switch: ON 

→

 START 

→

 ON

OFF 

→

 ON 

→

 OFF

START SIGNAL

EC-663

C

D

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EC

Wiring Diagram

EBS00MO8

TBWM0042E

EC-664

START SIGNAL

Specification data are reference values and are measured between each terminal and ground.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

Diagnostic Procedure

EBS00MO9

1. 

INSPECTION START

Do you have CONSULT-II?

Yes or No

Yes

>> GO TO 2.

No

>> GO TO 3.

2. 

CHECK OVERALL FUNCTION

 With CONSULT-II

1.

Turn ignition switch “ON”.

2.

Check “START SIGNAL” in “DATA MONITOR” mode with CON-
SULT-II under the following conditions.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 4.

3. 

CHECK OVERALL FUNCTION

 Without CONSULT-II

Check voltage between ECM terminal 59 and ground under the fol-
lowing conditions.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 4.

4. 

CHECK STARTING SYSTEM

Turn ignition switch “OFF”, then turn it to “START”.
Does starter motor operate?

Yes or No

Yes

>> GO TO 5.

No

>> Refer to 

SC-22, "STARTING SYSTEM"

 .

TER-

MINAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

59

SB

Start signal

[Ignition switch “ON”]

Approximately 0V

[Ignition switch “START”]

9 - 12V

Condition

START SIGNAL

Ignition switch “ON”

OFF

Ignition switch “START”

ON

PBIB0182E

Condition

Voltage

Ignition switch “START”

Battery voltage

Other positions

Approximately 0V

PBIB0677E