Classificatian:

ECOl -005B

ThReferenc;TBOl~Ol6B

Date:

September 15 2001

2000-2001 MAXIMA MIL "ON" WITH REAR 02 SENSOR DTC

P01 38-POl 40 OR P01 58-POl 60

ATTENTION: This bulletin amends the Service Procedure

and Claims Information section of NTBO1-016A.

^ If this bulletin applies, you must replace the incident bank(s) rear oxygen sensor(s) as indicated by the DTC on the CONSULT-Il self-diagnosis printout and the vehicle's Emissions Certification Label.

Reprogramming of the vehicle's ECM to the New ECM Data PIN may also be needed to help prevent incidents from reoccurring (this revision contains ECM data which has been improved over the previously published ECM data).

^ The Claims Information section has been revised to include new claims information for single sensor replacement versus replacement of both sensors.

Please discard all paper copies of NTBO1~O16A.


APPLIED VEHICLES:

2000-2001 Maxima (A33)


SERVICE INFORMATION

If an Applied 2000 or 2001 Maxima has a MIL ilOnil and any of the following DTCs stored in the ECM:

^ P0138 (Bank 1) H02S2 (Rear) (Max Voltage Monitoring)

^ P0139 (Bank 1) H02S2 (Rear) (Response Monitoring)

^ P0140 (Bank 1) H02S2 (Rear) (High Voltage)

^ P0158 (Bank 2) H02S2 (Rear) (Max Voltage Monitoring)

^ P0159 (Bank 2) H02S2 (Rear) (Response Monitoring)

^ P0160 (Bank 2) H02S2 (Rear) (High Voltage)

there are two repair actions required to resolve this incident:

1. Replace the incident bank(s) rear oxygen sensor(s) as indicated by the DTC on the

CONSULT-Il self-diagnosis printout and the vehicle's Emissions Certification Label to correct the condition.

2. Reprogram of the vehicle's ECM to the New ECM Data P/N to help prevent incidents from reoccurring.


Use the diagnosis/repair flow chart on page 2 and appropriate Service Procedure steps provided in this bulletin to diagnose and repair this incident, if it should occur.

These are the ONLY approved repair procedures for this incident. If the vehicle falls within this bulletin range, a claim to Nissan for the repair of this incident may be denied if the

repairs are not performed exactly as outlined in this bulletin.



















SERVICE PROCEDURE

Emissions Certification

Determine the vehicle's Emissions Certification (California or Federal):

1. All 2001 Maxima vehicles have Cajifomia emissions certification.

2. For 2000 Maxima vehicles, you need to determine if the vehicle is certified for California or Federal emissions. Check the Emissions Certification Label on the underside of the engine hood to verify if the certificate is for Califomia emissions (see Figure 1). If there is no mention of California on the label, the vehicle is certified for Federal emissions.

3. Perform Rear Oxygen Sensor Replacement, below, Rear Oxygen Sensor Replacement:

1. Determine which DTC code is stored in the vehicle's ECM by performing CONSULT-Il self-diagnosis. See Figure 2 for an example of the CONSULT-Il self-diagnosis printout.








2. Replace the incident bank(s) rear oxygen sensor(s) as indicated by the DTC on the CONSULT-li selt-diagnosis printout and the vehicle's Emissions Certification Label (see the Parts Information chart, page 7 fbr correct part numbers). See Figures 3, 4, and 5 for sensor/sensor connector location and identification.












2. Proceed to ECM Part Number Identification And Update, below,


ECM Part Number Identification and Update

1. Deterrnine the vehicle's ECM Part Number. The ECM P/N is found on top of the CONSULT-Il self-diagnosis printout (see Figure 6), or by CONSULT ECM PIN Selection.












3. Perform ECM reprogramming to update the ECM data to the new P/N. ASIST users refer to Attachment A in the print copy of this bulletin.


PARTS INFORMATION







CLAIMS INFORMATION

NOTE :This is the ONLY approved repair procedure for this incident. A claim to Nissan for the repair of this incident may be denied if the repair is not performed exactly as outlined in this bulletin.