Nissan Pathfinder (2010 year). Manual - part 301

 

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Nissan Pathfinder (2010 year). Manual - part 301

 

 

EC-500

< SERVICE DATA AND SPECIFICATIONS (SDS) 

[VQ40DE]

SERVICE DATA AND SPECIFICATIONS (SDS)

Heated Oxygen sensor 2 Heater

INFOID:0000000005257483

Crankshaft Position Sensor (POS)

INFOID:0000000005257484

Refer to 

EC-220, "Component Inspection"

.

Camshaft Position Sensor (PHASE)

INFOID:0000000005257485

Refer to 

EC-225, "Component Inspection"

.

Throttle Control Motor

INFOID:0000000005257486

Fuel Injector

INFOID:0000000005257487

Fuel Pump

INFOID:0000000005257488

Resistance [at 25

°

C (77

°

F)]

9.9 - 13.3

Resistance [at 25

°

C (77

°

F)]

Approximately 1 - 15

Resistance [at 10 - 60

°

C (50 - 140

°

F)]

11.1 - 14.5

Resistance [at 25

°

C (77

°

F)]

0.2 - 5.0

2010 Pathfinder

DIAGNOSIS AND REPAIR WORK FLOW

EC-501

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BASIC INSPECTION

DIAGNOSIS AND REPAIR WORK FLOW

Trouble Diagnosis Introduction

INFOID:0000000005257489

INTRODUCTION

The engine has an ECM to control major systems such as fuel con-

trol, ignition control, idle air control system, etc. The ECM accepts

input signals from sensors and instantly drives actuators. It is essen-

tial that both input and output signals are proper and stable. At the

same time, it is important that there are no malfunctions such as vac-

uum leakage, fouled spark plugs, or other malfunctions with the

engine.

It is much more difficult to diagnose an incident that occurs intermit-

tently rather than continuously. Most intermittent incidents are

caused by poor electric connections or improper wiring. In this case,

careful checking of suspected circuits may help prevent the replace-

ment of good parts.

A visual check only may not find the cause of the incidents. A road

test with CONSULT-III (or GST) or a circuit tester connected should

be performed. Follow the Work Flow on "WORK FLOW".

Before undertaking actual checks, take a few minutes to talk with a

customer who approaches with a driveability complaint. The cus-

tomer can supply good information about such incidents, especially

intermittent ones. Find out what symptoms are present and under

what conditions they occur. A Diagnostic Worksheet like the example

on "Worksheet Sample" should be used.

Start your diagnosis by looking for conventional malfunctions first.

This will help troubleshoot driveability malfunctions on an electroni-

cally controlled engine vehicle.

WORK FLOW

MEF036D

SEF233G

SEF234G

2010 Pathfinder

EC-502

< BASIC INSPECTION >

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DIAGNOSIS AND REPAIR WORK FLOW

Overall Sequence

Detailed Flow

1.

GET INFORMATION FOR SYMPTOM

Get the detailed information from the customer about the symptom (the condition and the environment when

the incident/malfunction occurred) using the DIAGNOSTIC WORKSHEET.

>> GO TO 2.

JMBIA1416GB

2010 Pathfinder

DIAGNOSIS AND REPAIR WORK FLOW

EC-503

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2.

CHECK DTC

1. Check DTC.

2. Perform the following procedure if DTC is displayed.

-

Record DTC and freeze frame data. (Print them out with CONSULT-III or GST.)

-

Erase DTC. (Refer to 

EC-536, "Emission-related Diagnostic Information"

.)

-

Study the relationship between the cause detected by DTC and the symptom described by the customer.

(Symptom Matrix Chart is useful. Refer to 

EC-947, "Symptom Matrix Chart"

.)

3. Check related service bulletins for information.
Are any symptoms described and any DTCs detected?

Symptom is described, DTC is displayed>>GO TO 3.

Symptom is described, DTC is not displayed>>GO TO 4.

Symptom is not described, DTC is displayed>>GO TO 5.

3.

CONFIRM THE SYMPTOM

Try to confirm the symptom described by the customer (except MIL ON).

DIAGNOSIS WORKSHEET is useful to verify the incident.

Also study the normal operation and fail-safe related to the symptom. Refer to 

EC-951, "Fuel Cut Control (at

No Load and High Engine Speed)"

 and 

EC-926, "Fail-Safe Chart"

.

Verify relation between the symptom and the condition when the symptom is detected.

>> GO TO 5.

4.

CONFIRM THE SYMPTOM

Try to confirm the symptom described by the customer.

DIAGNOSIS WORK SHEET is useful to verify the incident.

Also study the normal operation and fail-safe related to the symptom. Refer to 

EC-951, "Fuel Cut Control (at

No Load and High Engine Speed)"

 and 

EC-926, "Fail-Safe Chart"

.

Verify relation between the symptom and the condition when the symptom is detected.

>> GO TO 6.

5.

PERFORM DTC CONFIRMATION PROCEDURE

Perform DTC Confirmation Procedure for the displayed DTC, and then check that DTC is detected again.

If two or more DTCs are detected, refer to 

EC-928, "DTC Inspection Priority Chart"

 and determine trouble

diagnosis order.

NOTE:

• Freeze frame data is useful if the DTC is not detected.

• Perform Overall Function Check if DTC Confirmation Procedure is not included on Service Manual. This

simplified check procedure is an effective alternative though DTC cannot be detected during this check.

If the result of Overall Function Check is NG, it is the same as the detection of DTC by DTC Confirmation

Procedure.

Is DTC detected?

Yes

>> GO TO 10.

No

>> Check according to WORK FLOW.

6.

PERFORM BASIC INSPECTION

Perfor

EC-506, "Basic Inspection"

.

With CONSULT-III>>GO TO 7.

Without CONSULT-III>>GO TO 9.

7.

PERFORM SPEC IN DATA MONITOR MODE

 With CONSULT-III

Check that “MAS A/F SE-B1”, “B/FUEL SCHDL”, and “A/F ALPHA-B1”, “A/F ALPHA-B2” are within the SP

value using CONSULT-III “SPEC” in “DATA MONITOR” mode. Refer to 

EC-566, "Inspection Procedure"

.

Are they within the SP value?

Yes

>> GO TO 9.

2010 Pathfinder

EC-504

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DIAGNOSIS AND REPAIR WORK FLOW

No

>> GO TO 8.

8.

DETECT MALFUNCTIONING PART BY TROUBLE DIAGNOSIS - SPECIFICATION VALUE

Detect malfunctioning part according to 

EC-567, "Diagnosis Procedure"

.

Is a malfunctioning part detected?

Yes

>> GO TO 11.

No

>> GO TO 9.

9.

DETECT MALFUNCTIONING SYSTEM BY SYMPTOM MATRIX CHART

Detect malfunctioning system according to 

EC-947, "Symptom Matrix Chart"

 based on the confirmed symptom

in step 4, and determine the trouble diagnosis order based on possible causes and symptoms.

>> GO TO 10.

10.

DETECT MALFUNCTIONING PART BY DIAGNOSTIC PROCEDURE

Inspect according to Diagnostic Procedure of the system.

NOTE:

The Diagnostic Procedure in EC section described based on open circuit inspection. A short circuit inspection

is also required for the circuit check in the Diagnostic Procedure. For details, refer to Circuit Inspection in 

GI-

40, "Circuit Inspection"

.

Is a malfunctioning part detected?

Yes

>> GO TO 11.

No

>> Monitor input data from related sensors using CONSULT-III or check voltage of related ECM ter-

minals. Refer to 

EC-896, "CONSULT-III Reference Value in Data Monitor Mode"

EC-899, "ECM

Terminal and Reference Value"

.

11.

REPAIR OR REPLACE THE MALFUNCTIONING PART

1. Repair or replace the malfunctioning part.

2. Reconnect parts or connectors disconnected during Diagnostic Procedure again after repair and replace-

ment.

3. Check DTC. If DTC is displayed, erase it, refer to 

EC-536, "Emission-related Diagnostic Information"

.

>> GO TO 12.

12.

FINAL CHECK

When DTC was detected in step 2, perform DTC Confirmation Procedure or Overall Function Check again,

and then check that the malfunction have been completely repaired.

When symptom was described from the customer, refer to confirmed symptom in step 3 or 4, and check that

the symptom is not detected.
OK or NG

NG (DTC is detected)>>GO TO 10.

NG (Symptom remains)>>GO TO 6.

OK

>> 1. Before returning the vehicle to the customer, always erase unnecessary DTC in ECM and

TCM. (Refer to 

EC-536, "Emission-related Diagnostic Information"

 and 

TM-34, "OBD-II Diag-

nostic Trouble Code (DTC)"

.)

2. If the completion of SRT is needed, drive vehicle under the specific driving pattern. Refer to

Driving Pattern in 

EC-536, "Emission-related Diagnostic Information"

.

3. INSPECTION END

DIAGNOSTIC WORKSHEET

Description

2010 Pathfinder

DIAGNOSIS AND REPAIR WORK FLOW

EC-505

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There are many operating conditions that lead to the malfunction of

engine components. A good grasp of such conditions can make trou-

bleshooting faster and more accurate.

In general, each customer feels differently about symptoms. It is

important to fully understand the symptoms or conditions for a cus-

tomer complaint.

Utilize a diagnostic worksheet like the Worksheet Sample below in

order to organize all the information for troubleshooting.

Some conditions may cause the MIL to illuminate or blink, and DTC

to be detected. Examples:

• Vehicle ran out of fuel, which caused the engine to misfire.

• Fuel filler cap was left off or incorrectly screwed on, allowing fuel to

evaporate into the atmosphere.

Worksheet Sample

SEF907L

MTBL0017

2010 Pathfinder

EC-506

< BASIC INSPECTION >

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INSPECTION AND ADJUSTMENT

INSPECTION AND ADJUSTMENT

Basic Inspection

INFOID:0000000005257490

1.

INSPECTION START

1. Check service records for any recent repairs that may indicate a related malfunction, or a current need for

scheduled maintenance.

2. Open engine hood and check the following:

-

Harness connectors for improper connections

-

Wiring harness for improper connections, pinches and cut

-

Vacuum hoses for splits, kinks and improper connections

-

Hoses and ducts for leakage

-

Air cleaner clogging

-

Gasket

3. Check that electrical or mechanical loads are not applied.

-

Headlamp switch is OFF.

-

Air conditioner switch is OFF.

-

Rear window defogger switch is OFF.

-

Steering wheel is in the straight-ahead position, etc.

4. Start engine and warm it up until engine coolant temperature

indicator points to the middle of gauge.

Check that engine stays below 1,000 rpm.

5. Run engine at approximately 2,000 rpm for approximately 2 min-

utes under no load.

6. Check that no DTC is displayed with CONSULT-III or GST.
OK or NG

OK

>> GO TO 3.

NG

>> GO TO 2.

2.

REPAIR OR REPLACE

Repair or replace components as necessary according to corresponding Diagnostic Procedure.

>> GO TO 3.

3.

CHECK TARGET IDLE SPEED

 With CONSULT-III

1. Run engine at approximately 2,000 rpm for approximately 2 minutes under no load.

SEF983U

SEF976U

SEF977U

2010 Pathfinder

INSPECTION AND ADJUSTMENT

EC-507

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2. Rev engine between 2,000 and 3,000 rpm 2 or 3 times under no

load, then run engine at idle speed for approximately 1 minute.

3. Read idle speed in “DATA MONITOR” mode with CONSULT-III.

Refer to 

EC-510, "Idle Speed and Ignition Timing Check"

.

 Without CONSULT-III

1. Run engine at approximately 2,000 rpm for approximately 2 minutes under no load.

2. Rev engine between 2,000 and 3,000 rpm 2 or 3 times under no load, then run engine at idle speed for

approximately 1 minute.

3. Check idle speed.

Refer to 

EC-510, "Idle Speed and Ignition Timing Check"

.

OK or NG

OK

>> GO TO 10.

NG

>> GO TO 4.

4.

PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNING

1. Stop engine.

2. Perform 

EC-511, "Accelerator Pedal Released Position Learning"

.

>> GO TO 5.

5.

PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

Perfor

EC-511, "Throttle Valve Closed Position Learning"

.

>> GO TO 6.

6.

PERFORM IDLE AIR VOLUME LEARNING

Refer to 

EC-511, "Idle Air Volume Learning"

.

Is Idle Air Volume Learning carried out successfully?

Yes or No

Yes

>> GO TO 7.

No

>> 1. Follow the instructions of Idle Air Volume Learning.

2. GO TO 4.

7.

CHECK TARGET IDLE SPEED AGAIN

 With CONSULT-III

1. Start engine and warm it up to normal operating temperature.

2. Read idle speed in “DATA MONITOR” mode with CONSULT-III.

Refer to 

EC-510, "Idle Speed and Ignition Timing Check"

.

 Without CONSULT-III

1. Start engine and warm it up to normal operating temperature.

2. Check idle speed.

Refer to 

EC-510, "Idle Speed and Ignition Timing Check"

.

OK or NG

650 

±

 50 rpm (in P or N position)

PBIA8513J

650 

±

 50 rpm (in P or N position)

650 

±

 50 rpm (in P or N position)

650 

±

 50 rpm (in P or N position)

2010 Pathfinder

 

 

 

 

 

 

 

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