Nissan Pathfinder (2007 year). Manual - part 220

ASCD INDICATOR

EC-627

C

D

E

F

G

H

I

J

K

L

M

A

EC

2007 Pathfinder

Diagnostic Procedure

UBS00KIX

1. 

CHECK OVERALL FUNCTION

Check ASCD indicator under the following conditions.

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-154, "DTC U1000, U1001 CAN

COMMUNICATION LINE"

  .

3. 

CHECK COMBINATION METER FUNCTION

Refer to 

DI-4, "COMBINATION METERS"

  .

OK or NG

OK

>> GO TO 4.

NG

>> Go to 

DI-6, "Arrangement of Combination Meter"

  .

4. 

CHECK INTERMITTENT INCIDENT

Refer to 

EC-145, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

  .

>> 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 
between 40 km/h (25 MPH) 
and 144 km/h (89 MPH)

ASCD: Operating

ON

ASCD: Not operating

OFF

EC-628

ELECTRICAL LOAD SIGNAL

2007 Pathfinder

ELECTRICAL LOAD SIGNAL

PFP:25350

Description

UBS00KIM

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

CONSULT-II Reference Value in Data Monitor Mode

UBS00KIN

Specification data are reference values.

Diagnostic Procedure

UBS00KIO

1. 

CHECK LOAD SIGNAL CIRCUIT OVERALL FUNCTION-I

1.

Turn ignition switch ON.

2.

Connect CONSULT-II 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.

MONITOR ITEM

CONDITION

SPECIFICATION

LOAD SIGNAL

●

Ignition switch: ON

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

ON

Rear window defogger switch and 
lighting switch are OFF.

OFF

HEATER FAN SW

●

Engine: After warning up, idle the 
engine

Heater fan switch: ON

ON

Heater fan switch: OFF

OFF

Condition

Indication

Rear window defogger switch: ON

ON

Rear window defogger switch: OFF

OFF

PBIB0103E

Condition

Indication

Lighting switch: ON at 2nd position

ON

Lighting switch: OFF

OFF

PBIB0103E

ELECTRICAL LOAD SIGNAL

EC-629

C

D

E

F

G

H

I

J

K

L

M

A

EC

2007 Pathfinder

3. 

CHECK HEATER FAN SIGNAL CIRCUIT OVERALL FUNCTION

Select “HEATER FAN SW” and check indication under the following
conditions.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 6.

4. 

CHECK REAR WINDOW DEFOGGER SYSTEM

Refer to 

GW-74, "REAR WINDOW DEFOGGER"

  .

>> INSPECTION END

5. 

CHECK HEADLAMP SYSTEM

Refer to 

LT-5, "HEADLAMP (FOR USA)"

   or 

LT-27, "HEADLAMP (FOR CANADA) - DAYTIME LIGHT SYS-

TEM -"

  .

>> INSPECTION END

6. 

CHECK HEATER FAN CONTROL SYSTEM

Refer to 

ATC-34, "TROUBLE DIAGNOSIS"

   or 

MTC-29, "TROUBLE DIAGNOSIS"

  .

>> INSPECTION END

Condition

Indication

Heater fan control switch: ON

ON

Heater fan control switch: OFF

OFF

PBIB1995E

EC-630

FUEL INJECTOR

2007 Pathfinder

FUEL INJECTOR

PFP:16600

Component Description

UBS00KI6

The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the fuel injector, the coil in the fuel injector 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 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-II Reference Value in Data Monitor Mode

UBS00KI7

Specification data are reference values.

SEF375Z

MONITOR ITEM

CONDITION

SPECIFICATION

B/FUEL SCHDL

See 

EC-135, "TROUBLE DIAGNOSIS - SPECIFICATION VALUE"

  .

INJ PULSE-B1
INJ PULSE-B2

●

Engine: After warming up

●

Shift lever: P or N

●

Air conditioner switch: OFF

●

No load

Idle

2.0 - 3.0 msec

2,000 rpm

1.9 - 2.9 msec

FUEL INJECTOR

EC-631

C

D

E

F

G

H

I

J

K

L

M

A

EC

2007 Pathfinder

Wiring Diagram

UBS00KI8

BBWA2379E

EC-632

FUEL INJECTOR

2007 Pathfinder

Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.

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.

: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)

Diagnostic Procedure

UBS00KI9

1. 

INSPECTION START

Turn ignition switch to START.
Is any cylinder ignited?

Yes or No

Yes (With CONSULT-II)>>GO TO 2.
Yes (Without CONSULT-II)>>GO TO 3.
No

>> GO TO 7.

2. 

CHECK OVERALL FUNCTION

 With CONSULT-II

1.

Start engine.

2.

Perform “POWER BALANCE” in “ACTIVE TEST” mode with
CONSULT-II.

3.

Make sure that each circuit produces a momentary engine
speed drop.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 7.

TER-

MINAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

21
22
23
40
41
42

W
LG
SB
V
R
O

Fuel injector No. 5
Fuel injector No. 3
Fuel injector No. 1
Fuel injector No. 6
Fuel injector No. 4
Fuel injector No. 2

[Engine is running]

●

Warm-up condition

●

Idle speed

NOTE:
The pulse cycle changes depending on rpm 
at idle

BATTERY VOLTAGE

(11 - 14V)

[Engine is running]

●

Warm-up condition

●

Engine speed: 2,000 rpm

BATTERY VOLTAGE

(11 - 14V)

SEC984C

SEC985C

PBIB0133E

FUEL INJECTOR

EC-633

C

D

E

F

G

H

I

J

K

L

M

A

EC

2007 Pathfinder

3. 

CHECK FUNCTION OF FUEL INJECTOR-I

 Without CONSULT-II

1.

Stop engine.

2.

Disconnect harness connector F44, F101.

3.

Turn ignition switch ON.

4.

Check voltage between harness connector F44 terminal 3 and
ground with CONSULT-II or tester.

5.

Turn ignition switch OFF.

6.

Disconnect ECM harness connector.

7.

Check harness continuity between harness connector F44 and
ECM as follows.
Refer to Wiring Diagram.

8.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 5.

NG

>> GO TO 4.

4. 

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors E2, F32

●

IPDM E/R harness connector E119

●

15A fuse

●

Harness for open or short between harness connector F44 and fuse

●

Harness for open or short between harness connector F101 and fuel injector

>> Repair open circuit or short to ground or short to power in harness or connectors.

BBIA0587E

Voltage: Battery voltage

Cylinder

Harness connector F44 

terminal

ECM terminal

1

2

23

3

1

22

5

4

21

Continuity should exist.

PBIB2633E

EC-634

FUEL INJECTOR

2007 Pathfinder

5. 

CHECK FUNCTION OF FUEL INJECTOR-II

Provide battery voltage between harness connector F101 as follows
and then interrupt it. Listen to each fuel injector operating sound.

OK or NG

OK

>> GO TO 6.

NG

>> GO TO 7.

6. 

CHECK FUNCTION OF FUEL INJECTOR-III

1.

Reconnect all harness connector disconnected.

2.

Start engine.

3.

Listen to fuel injectors No. 2, No. 4, No.6 operating sound.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 7.

Cylinder

Harness connector F101 terminal

(+)

(–)

1

3

2

3

3

1

5

3

4

Operating sound should exist.

PBIB2634E

Clicking noise should exist.

PBIB1986E