1/9 Classification: Reference: Date: EC04-010a NTB04-037a April 15, 2004 2003-2004 SENTRA; MIL "ON" WITH DTC P1031 / P1148, A/F SENSOR HEATER / CLOSED LOOP This document contains amended Applied Vehicles. Please discard all previous copies of NTB04-037 APPLIED VEHICLES: 2003 Sentra (B15) with QG18DE SULEV* only *California emission specification. 2004 Sentra (B15) IF YOU CONFIRM: A MIL “ON” with the following DTC(s) stored: • P1031 (A/F Sensor Heater), and/or • P1148 (A/F Sensor Closed Loop Control), ACTIONS: Step A: Confirm this bulletin applies: • Determine the vehicle's "Emissions Level" (Page 2). • Check the Current ECM Part Number (Page 2). • Compare your Current ECM Part Number to Chart A (Page 3). If that part number does not match one in Chart A, this bulletin does not apply. Go back to ASIST for further diagnostic and repair information. Step B: Reprogram the ECM (Page 4). Step C: Perform A/F Sensor test to confirm proper air/fuel ratio (Page 9). 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 Service Procedure (starting on page 2) as it contains information that is essential to successfully completing this repair. Nissan Bulletins are intended for use by qualified technicians, not 'do-it-yourselfers'. Qualified technicians are properly trained individuals who have the equipment, tools, safety instruction, and know-how to do a job properly and safely. NOTE: If you believe that a described condition may apply to a particular vehicle, DO NOT assume that it does. See your Nissan dealer to determine if this applies to your vehicle.
Transcript
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Classification: Reference: Date:
EC04-010a NTB04-037a April 15, 2004
2003-2004 SENTRA; MIL "ON" WITH DTCP1031 / P1148, A/F SENSOR HEATER / CLOSED LOOP
This document contains amended Applied Vehicles. Please discard all previous copies of NTB04-037
APPLIED VEHICLES: 2003 Sentra (B15) with QG18DE SULEV* only *California emission specification.2004 Sentra (B15)
IF YOU CONFIRM:A MIL “ON” with the following DTC(s) stored:
• Determine the vehicle's "Emissions Level" (Page 2).• Check the Current ECM Part Number (Page 2).• Compare your Current ECM Part Number to Chart A (Page 3).
If that part number does not match one in Chart A, this bulletin does not apply.Go back to ASIST for further diagnostic and repair information.
Step B: Reprogram the ECM (Page 4).
Step C: Perform A/F Sensor test to confirm proper air/fuel ratio (Page 9).
IMPORTANT: The purpose of "ACTIONS" (above) is to give you a quick idea of the workyou will be performing. You MUST closely follow the entire Service Procedure (starting onpage 2) as it contains information that is essential to successfully completing this repair.
Nissan Bulletins are intended for use by qualified technicians, not 'do-it-yourselfers'. Qualified technicians areproperly trained individuals who have the equipment, tools, safety instruction, and know-how to do a jobproperly and safely. NOTE: If you believe that a described condition may apply to a particular vehicle, DONOT assume that it does. See your Nissan dealer to determine if this applies to your vehicle.
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CLAIMS INFORMATIONSubmit a Primary Failed Part (PP) line claim using the following claims coding: DESCRIPTION PFP OP CODE SYM DIA FRT Reprogram ECM per TSB (1) DE98AA HD 32 0.8 hrs
(2)1. Reference the final CONSULT-II print out and use the indicated new ECM P/N as the PFP.2. FRT allows adequate time to access DTC codes, reprogram ECM and perform the A/F Sensor function
test. No other diagnostic procedures subsequently required – do NOT claim any Diagnostic Op Codeswith this claim.
SERVICE PROCEDUREStep A: Confirm This Bulletin Applies
Determine The Vehicle's "Emissions Level"
1. Look at the underhood "emissions label".• See if it says "SULEV" exactly (not "ULEV" or "LEV").• If "SULEV" is not included in the label, then the vehicle is a "50-State" Emissions
Level.
TP040157a
Front Hood
Front3 Z 8 0 0
VEHICLE EMISSION CONTROL INFORMATION
NISSAN MOTOR CO., LTD.
CATALYST
44
Look Herefor
SULEVinformation.
Vehicle EmissionControl InformationLabel
SULEV VV
Figure 1
Check The Current ECM Part Number
2. With CONSULT-II “ON”, print the Freeze Frame data as follows:
• The Freeze Frame data that you’ve printedcontains the ECM Part Number (P/N).
• Figure 2 is an example of the F.F. Dataprintout.
• You will use the ECM P/N to see if thisbulletin applies.
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Compare Your Current ECM Part Number To Chart A
4. Using the ECM P/N printout from Step 2 (Figure 2):
• Compare your vehicle's ECM P/N to those shown under Current ECM P/N in ChartA, below:
• Locate and make note of the matching Select #, if applicable.
Chart A
CAUTION:• Some States that have required California emissions may have both CAL SULEV and
50-State Emissions Level vehicles.• It is best to refer to the Current ECM P/N to determine the vehicle configuration.• Some of the Vehicle Configurations have 2 different Reprogramming Data choices,
depending on the Current ECM P/N.• When there is more than 1 choice for a particular configuration, a Select # will show
before the "To" number in ASIST.• In that case, use the Select # to choose the appropriate Reprogramming Data from
A. If your vehicle’s ECM P/N matches a Current ECM P/N in the chart above:
• This bulletin applies. Go to Step B, Reprogramming the ECM (next page).
B. If your vehicle’s ECM P/N does not match a P/N in the chart above:
• This bulletin does not apply. Go back to ASIST for further diagnostic andrepair information.
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Step B: Reprogram The ECM
Vehicle ECU Reprogramming Overview
• There are four basic steps.
Step 1: Download reprogramming data (transfer it) from ASIST into CONSULT-II.
Step 2: “Preparation” steps before reprogramming.
Step 3: Reprogram the ECM.
Step 4: ECM reprogramming “Wrap-up”.
♦ If you are familiar with ECM reprogramming:
• Review Step one though Step 4—starting on page 5.
• Use them as a “Quick Reference” for ECM reprogramming.
♦ If you are not familiar with ECM Reprogramming, click here:
• This will link you to the "ECM Reprogramming For Nissan Vehicles" generalprocedure.
• Or refer to Attachment A in the print copy of this bulletin.
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Step One: Download Reprogramming Data (Transfer) Data From ASIST IntoCONSULT-II
TP030621gThis illustration is for example only, your vehicle may be different.
Vehicle / ModelConfigur-ation
KeyPadKeyPad Back UpBack UpBack Up
MainMenuMainMenuMainMenu ContinueContinue
AddAdd
RemoveRemove
Show meShow me
Vehicle Configuration #2
350Z
Maxima
Altima
Sentra
Quest
Pathfinder
Murano
Xterra
Frontier
2004
2003
2002
2001
2000
Search by Code(per bulletin only)
More More
To: 23710-XXXXX
16MB1A) To 23710-XXXXX Engine #1, Trans #1, etc
2A) To 23710-XXXXX Engine #1, Trans #1, etc.
2B) To 23710-XXXXX Engine #1, Trans #1, etc.
To 23710-XXXXX Engine #1, Trans #1, etc.
Replaces 23710-XXXXX, -XXXXX
UsedSpace1 File(s) selected
Details:
1B) To 23710-XXXXX Engine #1, Trans #1, etc.
Vehicle Configuration #1
* Click the "Add" button
Vehicle Configuration #3
"To"Number
8MB
Select #
Figure 3
1. Select vehicle model and model year (Example: Sentra 2003).
2. Select the correct Reprogramming Data:
a. Locate the specific “Vehicle Configuration” (Example: CAL ASCD).
NOTE: Vehicle Configuration may include items such as engine type, transmissiontype, and vehicle options such as ASCD, TCS, ABS, etc.
b. If Chart A (page 3) has a Select # (like 1A or 2B) that matches your vehicle, selectthat Reprogramming Data. Write the “To” number from this line on the repair order.
OR
Select (click on) the “To” number for your Vehicle Configuration for theReprogramming Data. (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 the on-screen directions to perform “data transfer”(download) from ASIST into CONSULT-II.
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Step Two: Preparation Steps Before Reprogramming
1. Connect a battery charger to the vehicle's battery.
• Set the charger to a low charge rate (trickle charge).
Do Not Connect A/C Power Supply
TP040090
Consult-II A/CPower Supply
Figure 4
LIGHT COPY
TP030620a
NISSAN
ELECTRONIC CONTROL UNITREPROGRAMMING
SUB MODE
AER02C-2
INITIATE ECU REPROGRAM
Figure 5
CAUTION: For number 2 below, andnumber 3 on the next page, DO NOTconnect the CONSULT-II AC powersupply.
2. Press SUB MODE (see Figure 5) then:
a. From the listed items, find and selectBATTERY CHARGE.
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BACKMODE
StartCharging
Discharge &Charge
LIGHT COPY
TP030625
VehicleBattery Voltage
MUST BEABOVE
12.00 VOLTS!
0 20 40 60 8010 30 50 70 90 100
0% 100%
Battery Charge - IDLE
Battery Voltage
Battery Charging
Charger Input
8.32 12.15
Elapsed
00:01.02
Discharge
00.00:00
Charge Time
00:01.02
CONSULT-IIBattery Voltage
Check ChargerInput withoutAC power
supply connected.
Figure 6
CAUTION: If the “Charger Input” is below 12 volts:
• A list of items to check when “Charger Input” voltage is below 12V is contained in the“ECM Reprogramming For Nissan Vehicles" general procedure.Click here to link to it.
• Or refer to Attachment A in the print copy of this bulletin.
Step Three: Reprogram The ECM
• If you are not familiar with ECM Reprogramming, click here:
• This will link you back to a general procedure called ECM Reprogramming For NissanVehicles"
• Or refer to Attachment A in the print copy of this bulletin.
3. Check the CONSULT-II’s “ChargerInput” reading (see Figure 6).
NOTE:
• “Battery Voltage” is the voltage levelof CONSULT-II's battery.
• "Charger Input" is the voltage level ofthe vehicle’s battery. (It must be above12 volts.)
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Step Four: ECM Reprogramming “Wrap-up”
1. Turn the ignition switch "OFF" and CONSULT-II “OFF”.
2. Wait more than 10 seconds, then:
a. Turn the ignition switch "ON" for 2 seconds, then
b. Turn the ignition switch "OFF" again for 10 seconds (see Figure 7).
• This will reset ECM “self learned” Data.
TP030626a
10 Sec.10 Sec.
Ignitionkey "ON"
Ignitionkey "OFF"
About 2 Sec. About 2 Sec.
Figure 7
3. Start the engine and check the idle speed.
• If idle speed is too low, perform “Idle Air Volume Learning” (IAVL). See theappropriate Service Manual (ESM) for this procedure.
NOTE: If the engine will not idle, hold the engine RPM at about 2000, then slowlybring it down to an idle. IAVL can now be performed.
4. Confirm the engine is operating normally.
5. Make sure the MIL is OFF.
• If it’s still ON, use CONSULT-II with the Diagnostic (red/white) Card to erase anyDTC’s that may have stored during the reprogramming procedure.
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Step C: Perform A/F Sensor Test
• This is to make sure the A/F Sensor and Fuel Management System are functioningcorrectly.
Figure 8
3. Observe A/F SEN1 (B1) voltage for 30 seconds while holding 2000 rpm no-load.
a. A/F sensor voltage should remain (most of the time) between 1.37 and 1.57 volts.
• If the engine rpm is held constant, voltage will fluctuate (change rapidly), butshould remain in this range.
b. If, most of the time, the A/F Sensor voltage is out of this range:
• The vehicle has an additional incident.
• This bulletin does not have repair information for an A/F Sensor or FuelManagement System incident.
• Go to ASIST for further diagnostic and repair information.
1. Use CONSULT-II DATA MONITOR to viewthe following:
• Engine Speed, and
• A/F Sensor voltage (see Figure 8).
2. Hold the engine speed at about 2000 rpmno-load for 2 minutes.
• This will create a “stable condition” forstep 3.
