2000 Nissan Maxima TSB

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2000 Nissan Maxima TSB | Manualzz

Classification:

EC00-024b

Reference:

NTB00-070b

Date:

June 7, 2004

2000-2001 MAXIMA MIL "ON" WITH DTC P0420 STORED –

THREE WAY CATALYST FUNCTION

IMPORTANT: THIS BULLETIN HAS BEEN REVISED.

The Service Information and Service Procedure sections of this bulletin were revised.

Please use this bulletin NTB00-070b for complete information.

Discard all previously distributed copies of NTB00-070a.

APPLIED VEHICLES:

2000-2001 Maxima (A33) - Except 2000 Maximas with

Federal Emissions Specification

IF YOU CONFIRM:

An applied vehicle has the following symptoms:

MIL ‘ON’ with DTC P0420 stored

AND

Vehicle runs OK and does NOT have a misfire or driveability incident

ACTIONS:

1. Confirm this bulletin applies to the vehicle you’re working on. Refer to the Repair Flow

Chart on page 3 for details.

2. Compare the current ECM part number to Chart A on page 5.

If your ECM part number is listed in Chart A, reprogram the ECM to the latest ECM data. See ECM REPROGRAMMING on page 6 for details. Do NOT replace any parts in this case.

If your ECM part number is NOT listed in Chart A, you do not have to reprogram the

ECM. But you will have to replace the Front Tube Assembly and the Front

H02S1-B1 Oxygen Sensor. See Parts Replacement on page 10 for details.

IMPORTANT: The purpose of "ACTIONS" (above) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire Repair Flow Chart and Service

Procedure (starting on page 3) as it contains information that is essential to successfully completing this repair.

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PARTS INFORMATION

NOTE:

The below parts are ONLY needed if your vehicle’s ECM Part Number (P/N) DOES

NOT match a Current ECM P/N in Chart A (page 5).

The below parts are NOT needed if your vehicle’s ECM Part Number (P/N)

matches a Current ECM P/N in Chart A (page 5).

DESCRIPTION

Front Tube Assembly

PART NUMBER

20020-3Y400

QUANTITY

1

Front Oxygen Sensor (H02S1-B1)

Gasket – Exhaust (2000 MY only)

22690-2Y921

20692-24U00

1

1

Gasket – Catalyst (2001 MY only)

Gasket – Exhaust (2000-01 MY)

Gasket – Exhaust Manifold, A (2000-01 MY)

20692-65J00

20691-51E01

20691-38U00

1

1

1

CLAIMS INFORMATION

If the ECM P/N IS on Chart A, submit a Primary Failed Part (PP) line claim using the following claims coding:

DESCRIPTION

Reprogram ECM and perform CONSULT-II check for

DTC P0420 (1)

PFP OP CODE SYM DIA FRT

(2) DE98AA HC 32 0.7 hrs.

(1) FRT includes sufficient labor time for diagnosis. DO NOT claim any Section "EE" diagnostic Op Codes for this reprogram operation.

(2) Reference the final CONSULT-II reprogram function print out and use the indicated P/N as the PFP.

OR

If the ECM P/N IS NOT on Chart A, submit a Primary Failed Part (PP) line claim using the following claims coding:

DESCRIPTION

RPL One Front Exhaust

Tube

RPL One Front Exhaust

Gas (O2) Sensor

PFP

20020-3Y400

OP CODE

FD10AA

DE47AA

SYM

HC

DIA

32

FRT

(1)

(1)

(1) Reference the current Nissan Warranty Flat Rate Manual and use the indicated FRT.

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Repair Flow Chart

MIL "On", DTC P0420 Stored

'00 MY Maxima '01 MY Maxima

Bulletin does not apply.

Use ESM

DTC P0420

Procedure.

No

Certified for

California emissions?

Check Emissions

Certification Label, underside of engine hood (see Figure 1,

pg. 4).

Yes

Determine ECM P/N from top of CONSULT-II selfdiagnosis printout or by CONSULT ECM P/N function. See "Check the Current ECM Part

Number" and Figure 2 on page 5.

Is

ECM P/N one of those listed in

Chart A, pg. 5?

Yes

Perform ECM reprogramming (see "ECM

Reprogramming" on page 6):

- Download from ASIST to CONSULT-II

- Program from CONSULT-II to vehicle.

No

Replace the Front Tube

Assembly and the Front

H02S1-B1 Oxygen Sensor.

See "Parts Replacement" on page 10.

3/10

SERVICE PROCEDURE

Bulletin Applicability

Determine if this bulletin applies to the vehicle:

1. For 2000 Maxima vehicles, check the Emissions Certification Label on the underside of the engine hood (see Figure 1). Is the certificate for California emissions?

If the certificate is not for California emissions, this bulletin does not apply. Use the

P0420 Diagnostic Procedures in the ESM to further diagnose and repair.

If the certificate is for California emissions, proceed to Check the Current ECM

Part Number next page.

VEHICLE EMISSION CONTROL INFORMATION

¥ TEST GROUP: YNSXV03. 036A/OBD-II CERTIFIED

¥ ENGINE DISPLACEMENT: 3.0LITER

¥ EVAPORATIVE FAMILY: YNSXR0110RCC

¥ EXHAUST EMISSION CONTROL TYPE: TWC/2H02S (2) /EGR/SFI/2TWC

¥ ENGINE TUNE UP SPECIFICATIONS AND ADJUSTMENTS:

IDLE SPEED

HIGH IDLE SPEED

IDLE MIXTURE SETTING

VALVE LASH

NO OTHER ADJUSTMENTS NEEDED

NO OTHER ADJUSTMENTS NEEDED

NO OTHER ADJUSTMENTS NEEDED

INTAKE : 0.36mm (.14IN) -HOT

EXHAUST : 0.37mm (.15IN) -HOT

15û B.T.D.C.

IGNITION TIMING

* ENGINE AT NORMAL OERATING TEMPERATURE

* ALL ACCESSORIES TURNED OFF

* KEEP THE STEERING WHEEL IN A STRAIGHT AHEAD POSITION

* CHECK WHEN RADIATOR COOLING FAN DOES NOT OPERATE

* SEE SERVICE MANUAL AND MAINTENANCE SCHEDULE FOR

ADDITIONAL INFORMATION

THIS VEHICLE CONFORMS TO U.S. EPA NLEV REGULATIONS APPLICABLE TO

GASOLINE-FUELED 2000 MODEL YEAR NEW LEV PASSENGER CARS AND

CALIFORNIA REGULATIONS APPLICABLE TO GASOLINE-FUELED 2000

MODEL YEAR NEW LEV PASSENGER CARS.

NISSN MOTOR CO., LTD.

3 Y 1 0 1

VQ30DE

C A T A L Y S T

G

F

F

G

3

0

V

0

TP000554

Figure 1

4/10

Check the Current ECM Part Number

With CONSULT-II “ON”, print the Freeze Frame data as follows:

START(Nissan) >> ENGINE >> Self-DIAG Results >> F.F. Data >> PRINT

The Freeze Frame data that you’ve printed contains the ECM Part Number (P/N).

Figure 2 is an example of the F.F. Data printout.

Once you know the current ECM part number, go to the next step: “Compare the Current

ECM Part Number to Chart A (below).

SYSTEM

DATE

P/#

ENGINE

XX/XX/XXXX* xx:xx:xx

23710-XXXXX

Current

ECM Part

Number

Freeze Frame

DTC RESULTS

(DTC description here)

[P0XXX]

DTC

Code

* Example, your screen may differ.

Figure 2

TP020389k

Compare the Current ECM Part Number to Chart A:

Compare the vehicle's current ECM P/N to those shown under Current ECM P/N in Chart

A, below:

Chart A

Vehicle

2000, M/T

2000, M/T w/V-tires *

2000, A/T

2000, A/T w/ TCS **

2001, M/T

2001, M/T w/V-tires *

2001, A/T

2001, A/T w/ TCS **

NOTE: * V-Tires = V-rated Tires

** TCS = Traction Control System

Current ECM P/N

23710-3Y100, -3Y101, -3Y102, -3Y103, -3Y104, -2Y065

23710-3Y110, -3Y111, -3Y112, -3Y113, -3Y114. -2Y075

23710-3Y115, -3Y116, -3Y117, -3Y118, -3Y119, -2Y170

23710-3Y160, -3Y161, -3Y162, -3Y163, -3Y164, -2Y175

23710-4Y900, -4Y901, -4Y902

23710-4Y910, -4Y911, -4Y912

23710-5Y000, -5Y001, -5Y002

23710-5Y010, -5Y011, -5Y012

A. If your vehicle’s ECM P/N matches a P/N in the chart above:

Perform

B. If your vehicle’s ECM P/N does not match a P/N in the chart above:

ECM Reprogramming is not necessary.

Replace the Front Tube Assembly and the Front H02S1-B1 Oxygen Sensor.

See Parts Replacement on page 10 for an illustration and more details.

5/10

ECM REPROGRAMMING

Vehicle ECM Reprogramming Overview

There are four basic steps:

1. Download reprogramming data (transfer it) from ASIST into CONSULT-II.

2. “Preparation” steps before reprogramming the vehicle ECM.

3. Reprogram the vehicle ECM.

4. “Wrap-up” after reprogramming is finished.

If you’re not familiar with the latest ECM reprogramming procedures, click

here .

This will link you to the "ECM Reprogramming For Nissan Vehicles" general procedure. Or, refer to Attachment A in the print copy of this bulletin.

For those familiar with ECM Reprogramming, please review the following steps and use them as a Quick Reference for ECM reprogramming.

6/10

Step One: Download (Transfer) Data From ASIST Into CONSULT-II

Vehicle /

Model

Configuration

"To"

Number

350Z

Maxima

Altima

Sentra

Quest

Pathfinder

Murano

Xterra

Frontier

2004

2003

2002

2001

2000

* Click the "Add" button

Vehicle Configuration #1

To 23710-XXXXX Engine #1, Trans #1, etc

To 23710-XXXXX Engine #1, Trans #1, etc.

Vehicle Configuration #2

To 23710-XXXXX Engine #1, Trans #1, etc.

To 23710-XXXXX Engine #1, Trans #1, etc.

Vehicle Configuration #3

To 23710-XXXXX Engine #1, Trans #1, etc.

Details:

Replaces 23710-XXXXX, -XXXXX

1 File(s) selected

To: 23710-XXXXX

Used

Space

16MB

8MB

More More

Search by Code

(per bulletin only)

This illustration is for example only, your vehicle may be different.

Figure 3

Back

Up

Main

Menu

1. Select vehicle model and model year (Example: Maxima, 2001).

TP030621b

2. Select the correct reprogramming data: a. Locate the specific “Model Configuration” (Example: VQ30 4A/T ASCD TCS).

NOTE: Model Configuration may include items such as engine type, transmission type, and vehicle options such as ASCD, TCS, ABS etc.

b Select (click on) the “To” number. (Write the “To” number on the repair order.)

NOTE: The “To” number will read: 23710-XXXXX.

3. Click on the “Add” button.

This will add the selected data to the “File(s) Selected” list.

4. Click on “Continue” and follow directions to perform “data transfer” (download) from

ASIST into CONSULT-II.

7/10

Step Two: Preparation for Reprogramming ECM

CAUTION: DO NOT connect the CONSULT-II AC power supply for items 1 and 2.

1. Press SUB MODE (see Figure 4) then: a. From the listed items, find and select BATTERY CHARGE.

NISSAN

ELECTRONIC CONTROL UNIT

REPROGRAMMING

AER02C-1

INITIATE ECU REPROGRAM

SUB MODE

LIGHT COPY

Figure 4

TP030620

2. Check the CONSULT-II’s “Charger

Input” reading (see Figure 5).

NOTE:

“Battery Voltage” is the voltage level of CONSULT-II's battery.

"Charger Input" is the voltage level of the vehicle’s battery. (It must be above

12 volts.)

CONSULT-II

Battery

Voltage

Battery Charging

Elapsed

00:01.02

Discharge

00.00:00

Charge Time

00:01.02

Vehicle

Battery

Voltage

Battery Voltage Charger Input

0%

8.32 12.15

100%

MUST BE

ABOVE

12.00 VOLTS!

0 10 20 30 40 50 60 70 80 90 100

Battery Charge - IDLE

Check Charger

Input without

AC power supply connected.

Start

Charging

Discharge &

Charge

MODE BACK LIGHT COPY

TP030625

Figure 5

CAUTION: If the “Charger Input” is below 12 volts, connect a battery charger to the vehicle’s battery and re-check the “Charger Input”. If still not 12V, then:

Click to link to the "ECM Reprogramming For Nissan Vehicles" general procedure, or refer to Attachment A in the print copy of this bulletin.

The general procedure includes a list of items to check when “Charger Input” voltage is below 12V.

8/10

Step Three: Reprogram the Vehicle ECM

Step Four: “Wrap-up” After Reprogramming is Finished

1. Turn the ignition switch "OFF" and turn CONSULT-II “OFF”.

2. Wait more than 10 seconds, then; a. Turn the ignition switch "ON" for 2 second, then b. Turn the ignition switch "OFF" again for 10 seconds (see Figure 6).

This will reset ECM “self learned” Data.

Ignition key "ON" 2 Sec.

2 Sec.

Ignition key "OFF"

10 Sec.

10 Sec.

TP030626b

Figure 6

3. Start the engine and check the idle speed.

If idle speed is too low, perform IAVL (Idle Air Volume Learning). See the appropriate Service Manual (ESM) for this procedure.

NOTE: If the engine will not idle, hold the engine RPM at about 2000, then slowly bring it down to an idle. IAVL can now be performed.

4. Confirm the engine is operating normally.

5. Make sure the “Check Engine Light “ (MIL) is not “ON”.

If necessary, use CONSULT-II and the Diagnostic (red/white) Card to erase any DTC’s that may have stored during the reprogramming procedure.

9/10

Parts Replacement (if needed)

Replace the Front Tube Assembly and the Front H02S1-B1 Oxygen Sensor (see Figures 7 and 8 below).

Refer to the FE section in the applicable ESM for the replacement procedures.

Rear muffler

Bank 1 (B1)

Front Tube

Assembly

Rear cat

HO2S1-B1

Front O

2 sensor B1

(BLACK)

Front

B1 Pre-Cat

H02S1-B2

Front O2 sensor B2

(BLUE)

Figure 7

B2

Pre-cat

H02S2-B2

Rear O2 sensor B2

(RED)

H02S2-B1

Rear O2 sensor B1 (WHITE)

Bank 2 (B2)

TP010105a

H02S1-B1

Front O2 Sensor B1

(BLACK Harness)

Front

Passenger Side

Front Strut Tower

Figure 8

TP030484a

10/10

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