2004 Nissan Titan And Armada; Mil “On” With Dtc P1031, P1051, P1148, P1168 A/F Sensor Heater / Closed Loop

2004 Nissan Titan And Armada; Mil “On” With Dtc P1031, P1051, P1148, P1168 A/F Sensor Heater / Closed Loop

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If you confirm: a 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 (see page 2). • compare your current ecm part number to chart a on page 2. 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. Reprogram the ecm (see page 3). C. Perform a/f sensor test to confirm proper air fuel operation (see page 7). Claims information submit 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) (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 codes with this claim. Service procedure step a: confirm this bulletin applies 1. With consult-iI “on”, print the freeze frame data as follows: start(nissan) >> engine >> self-diag results >> f.F. Data >> print 2. Attach this printout to the repair order. • figure 1 is an example of the f.F. Data printout. • the freeze frame data that you’ve printed contains the ecm part number (p/n). • the ecm part number will be used to see if this bulletin applies or not.

3. Check the ecm part number on the printout from step 1 (figure 1); • compare your vehicle’s ecm p/n to those shown under current ecm p/n in chart a, below: • if it’s in that column, this bulletin applies. A. If your vehicle’s ecm p/n matches a p/n in the chart above: • perform ecm reprogramming, starting on page 3, then • perform a/f sensor test (see page 7). B. If your vehicle’s ecm p/n does not match a p/n in the chart above: • this bulletin does not apply. Refer to asist for further diagnostic and repair information. 2/7 step b: 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. 3. Reprogram the vehicle ecm. 4. Ecm reprogramming “wrap-up”. Note: • 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.