Engine Controls - MIL ON/DTC's A/F Sensor DTC's Set: Overview

Classification:
EC04-006a

Reference:
NTB04-028a

Date:
March 24, 2004

2004 MAXIMA & QUEST (5 SPEED A/T ONLY); MIL "ON" WITH DTC P1031, P1051, P1148, P1168 A/F SENSOR HEATER/CLOSED LOOP

This version of NTB04-028 amends Chart A in the Service Procedure. Please discard all paper copies of the earlier version.

APPLIED VEHICLES:
2004 Maxima (A34) with 5 speed A/T only
2004 Quest (V42) with 5 speed A/T only

NOTE:
Models with 4 speed A/T or 6 speed M/T are not covered by this TSB. For those vehicles, refer to NTB04-024

IF YOU CONFIRM:

^ MIL "ON" with the following DTC(s) stored:

^ P1031/P1051 (A/F Sensor Heater), and/or

^ P1148/P1168 (A/F Sensor Closed Loop Control),

ACTIONS:

A. Confirm this bulletin applies:

^ Check the Current ECM Part Number.

^ Compare your Current ECM Part Number to Chart A.

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.

B. Perform reprogramming by "special ID Look-up" - a special process for this TSB only.

C. Perform A/F Sensor test to confirm proper air/fuel ratio.

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 as it contains information that is essential to successfully completing this repair.





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