Nissan Pathfinder (2011 year). Manual - part 305

EC-494

< PREPARATION >

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PREPARATION

Fuel filler cap adapter
i.e.: (MLR-8382)

Checks fuel tank vacuum relief valve opening 
pressure

Socket wrench

Removes and installs engine coolant temperature 
sensor

Oxygen sensor thread 
cleaner
i.e.: (J-43897-18)
(J-43897-12)

Reconditions the exhaust system threads before 
installing a new oxygen sensor. Use with anti-
seize lubricant shown below.

a: 18 mm diameter with pitch 1.5 mm for Zirco-
nia Oxygen Sensor
b: 12 mm diameter with pitch 1.25 mm for Tita-
nia Oxygen Sensor

Anti-seize lubricant 
i.e.: (Permatex

TM

 

133AR or equivalent 
meeting MIL specifica-
tion MIL-A-907)

Lubricates oxygen sensor thread cleaning tool 
when reconditioning exhaust system threads.

Tool name
(Kent-Moore No.)

Description

S-NT815

S-NT705

AEM488

S-NT779

2011 Pathfinder

ENGINE CONTROL SYSTEM

EC-495

< SYSTEM DESCRIPTION >

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SYSTEM DESCRIPTION

ENGINE CONTROL SYSTEM

System Diagram

INFOID:0000000006244213

JMBIA1925GB

2011 Pathfinder

EC-496

< SYSTEM DESCRIPTION >

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ENGINE CONTROL SYSTEM

Engine Control Component Parts Location

INFOID:0000000006244214

1.

ECM

2.

Battery current sensor

3.

Refrigerant pressure sensor

4.

Power steering pressure sensor

5.

Intake valve timing control solenoid 
valve (bank 2)

6.

Cooling fan motor

7.

Intake valve timing control position 
sensor (bank 2)

8.

Engine coolant temperature sensor

9.

Electric throttle control actuator

10. Intake valve timing control position 

sensor (bank 1)

11. Intake valve timing control solenoid 

valve (bank 1)

12. Camshaft position sensor (PHASE)

13. Mass air flow sensor (with intake air 

temperature sensor)

14. A/F sensor 1 (bank 1)

15. Ignition coil (with power transistor) 

and spark plug (bank 1)

16. EVAP service port 

17. Fuel injector (bank 1)

18. Knock sensor (bank 1)

19. EVAP canister purge volume control 

solenoid valve

20. Knock sensor (bank 2)

21. Fuel injector (bank 2)

22. Ignition coil (with power transistor) 

and spark plug (bank 2)

23. A/F sensor 1 (bank 2)

24. IPDM E/R

ALBIA0352ZZ

2011 Pathfinder

ENGINE CONTROL SYSTEM

EC-497

< SYSTEM DESCRIPTION >

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1.

Body ground (view with air cleaner 
case removed)

2.

Body ground (view with battery re-
moved)

3.

No.1 ignition coil

4.

Engine ground

5.

Mass air flow sensor (with intake air 
temperature sensor)

6.

IPDM E/R

7.

Battery

8.

Radiator hose

9.

Camshaft position sensor (PHASE)

AWBIA0081ZZ

2011 Pathfinder

EC-498

< SYSTEM DESCRIPTION >

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ENGINE CONTROL SYSTEM

10. Electric throttle control actuator 

(view with intake air duct removed)

11. Electronic throttle control actuator 

harness connector (view with intake 
air duct removed)

12. Cooling fan motor harness connec-

tor

: Vehicle front

AWBIA0082ZZ

2011 Pathfinder

ENGINE CONTROL SYSTEM

EC-499

< SYSTEM DESCRIPTION >

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1.

EVAP canister purge volume control 
solenoid valve (view with engine 
cover removed)

2.

EVAP service port 

3.

Crankshaft position sensor (POS) 
(view from under vehicle)

4.

Engine oil pan 

5.

Condenser-1

6.

Brake fluid reservoir

7.

Fuel filler pipe (top of frame view)

8.

EVAP control system pressure sen-
sor

9.

EVAP canister vent control valve

10. EVAP canister

11. Drain filter

12. Refrigerant pressure sensor

13. Intake valve timing control position 

sensor (bank 2) (view with engine 
cover and intake air duct removed)

14. Intake valve timing control position 

sensor (bank 1) 

15. Intake valve timing control solenoid 

valve (bank 2) (view with engine cov-
er and intake air duct removed)

16. Drive belt

17. Radiator hose (view with engine cov-

er and intake air duct removed)

18

Intake valve timing control solenoid 
valve (bank 1) 

: Vehicle front

ALBIA0369ZZ

1.

Knock sensor (bank 1) (view with en-
gine removed)

2.

Knock sensor (bank 2) (view with en-
gine removed)

3.

Battery current sensor

4.

Power steering pressure sensor

5.

Intake manifold

6.

Engine coolant temperature sensor

2011 Pathfinder

EC-500

< SYSTEM DESCRIPTION >

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ENGINE CONTROL SYSTEM

7.

Ignition coil (with power transistor) 
(bank2)

8.

Ignition coil (with power transistor) 
(bank 1)

9.

Fuel injector harness connectors 
(bank 2)

10. Fuel injector harness connectors 

(bank 1)
: Vehicle front

PBIB2710E

1.

A/F sensor 1 (bank 2)

2.

A/F sensor 1(bank 1)

3.

Heated oxygen sensor 2
(bank 1)

4.

Heated oxygen sensor 2
(bank 2)
: Vehicle front

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2011 Pathfinder

ENGINE CONTROL SYSTEM

EC-501

< SYSTEM DESCRIPTION >

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1.

ASCD steering switch

2.

MAIN switch

3.

CANCEL switch

4.

SET/COAST switch

5.

RESUME/ACCELERATE switch

6.

ECM harness connectors (view with 
ECM cover removed)

7.

Coolant reservoir

8.

Accelerator pedal position sensor

9.

Fuel level sensor unit and fuel pump 
harness connector (view with fuel 
tank removed)

AWBIA0084ZZ

2011 Pathfinder