Nissan Frontier D22. Manual - part 558

 

  Index      Nissan     Nissan Frontier D22 Pickup (1998-2004 year) - Service and Repair Manual

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  556  557  558  559   ..

 

 

Nissan Frontier D22. Manual - part 558

 

 

DTC P0102, P0103 MAF SENSOR

EC-1335

[VG33ER]

C

D

E

F

G

H

I

J

K

L

M

A

EC

PROCEDURE FOR DTC P0102

 With CONSULT-II

1.

Turn ignition switch ON.

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

Start engine and wait at least 5 seconds at most.

4.

If DTC is detected, go to 

EC-1337, "Diagnostic Procedure"

 .

If DTC is not detected, go to next step.

5.

Start engine and let it idle for at least 6 seconds.

6.

If DTC is detected, go to 

EC-1337, "Diagnostic Procedure"

 .

 With GST

Follow the procedure “With CONSULT-II”.

PROCEDURE FOR DTC P0103

 With CONSULT-II

1.

Turn ignition switch ON.

2.

If 1st trip DTC is detected, 
Select “DATA MONITOR” mode with CONSULT-II.

3.

Wait at least 6 seconds.

4.

If 1st trip DTC is detected, go to 

EC-1337, "Diagnostic Proce-

dure"

 .

If 1st trip DTC is not detected, go to next step.

5.

Start engine and let it idle for at least 6 seconds.

6.

If 1st trip DTC is detected, go to 

EC-1337, "Diagnostic Proce-

dure"

 .

 With GST

Follow the procedure “With CONSULT-II”.

SEF058Y

SEF058Y

EC-1336

[VG33ER]

DTC P0102, P0103 MAF SENSOR

Wiring Diagram

UBS00DTN

BBWA0470E

DTC P0102, P0103 MAF SENSOR

EC-1337

[VG33ER]

C

D

E

F

G

H

I

J

K

L

M

A

EC

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 the ECM terminals, such as the ground.

Diagnostic Procedure

UBS00DTO

1. 

INSPECTION START

Which malfunction (P0102 or P0103) is duplicated?

P0102 or P0103

P0102 >> GO TO 2.
P0103 >> GO TO 3.

2. 

CHECK INTAKE SYSTEM

Check the following for connection.

Air duct

Vacuum hoses

Intake air passage between air duct to intake manifold collector

OK or NG

OK

>> GO TO 3.

NG

>> Reconnect the parts.

3. 

RETIGHTEN GROUND SCREWS

1.

Turn ignition switch OFF.

2.

Loosen and retighten engine ground screws.

>> GO TO 4.

TER-

MINAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

54

R

Mass air flow sensor

[Engine is running]

Warm-up condition

Idle speed

1.0 - 1.7V 

[Engine is running]

Warm-up condition

Engine speed is 2,500 rpm

1.7 - 2.3V

55

G

Mass air flow sensor 
ground

[Engine is running]

Warm-up condition

Idle speed

Approximately 0V

BBIA0418E

EC-1338

[VG33ER]

DTC P0102, P0103 MAF SENSOR

4. 

CHECK MAF SENSOR POWER SUPPLY CIRCUIT

1.

Disconnect mass air flow sensor harness connector.

2.

Turn ignition switch ON.

3.

Check voltage between terminal 2 and ground with CONSULT-II
or tester.

OK or NG

OK

>> GO TO 6.

NG

>>  GO TO 5.

5. 

DETECT MALFUNCTIONING PART

Check the following.

Harness for open or short between ECM relay and mass air flow sensor

Harness for open or short between mass air flow sensor and ECM

>> Repair harness or connectors.

6. 

CHECK MAF SENSOR GROUND CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check harness continuity between MAF sensor terminal 3 and ECM terminal 55.
Refer to Wiring Diagram.

4.

Also check harness for short to power.

OK or NG

OK

>> GO TO 7.

NG

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

7. 

CHECK MAF SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1.

Check harness continuity between MAF sensor terminal 4 and ECM terminal 54.
Refer to Wiring Diagram.

2.

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

OK or NG

OK

>> GO TO 8.

NG

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

AEC641A

Voltage: Battery voltage

SEF627W

Continuity should exist.

Continuity should exist.

 

 

 

 

 

 

 

Content   ..  556  557  558  559   ..