A/T Controls - Booming Noise Between 20 & 45 MPH
Classification: AT09-014Reference: NTB09-138
Date: December 18, 2009
2009 - 2010 MAXIMA; BOOMING NOISE OR VIBRATION
APPLIED VEHICLE: 2009 - 2010 Maxima (A35)
IF YOU CONFIRM:
There is a booming noise and/or vibration when all of the following conditions are present:
^ Speed between 20 and 45 mph
and
^ Transmission is in "lock-up"
and
^ Engine RPM between 1200 and 1500
and
^ Light acceleration
ACTIONS:
Important:
Before performing the reprogramming procedure in this bulletin, make sure the customer has been informed of the Customer Information shown below.
1. Refer to Step 2 in the Service Procedure to confirm this bulletin applies to the vehicle you are working on.
2. If this bulletin applies, reprogram the TCM.
CLAIMS INFORMATION
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.
Customer Information
1. Slight noise and/or vibration under the conditions described above are a normal operating characteristic of this vehicle and are within design specifications for the vehicle.
2. For those customers who are particularly sensitive to this characteristic of their vehicles, the transmission control module reprogramming procedure described in this bulletin may be performed. However, the customer should be advised that this is a specification change and differs from the original specification that exists on their vehicle.
3. If a customer voluntarily chooses to have this specification change made to their vehicle, they should be advised that their actual MPG may (or may not) slightly decrease (up to 1 mpg) as a result, depending on their driving habits and other conditions.
SERVICE PROCEDURE
1. Connect CONSULT III (C-III) to the vehicle to begin the TCM reprogramming procedure.
CAUTION
2. When you get to the TCM Reprogramming screen shown in Figure 1, confirm TCM reprogramming applies as follows.
A. On your C-III screen, look at the Part Number (P/N) column (see Figure 1).
^ Write down the P/N on the Repair Order.
B. Compare the P/N you wrote down to the numbers in the Current TCM P/N column in Table A above.
^ If there is a match this bulletin applies. Continue with the reprogramming procedure.
NOTE:
If there are two lines (two reprogramming options) on your C-III screen, use the one with the message "Caution! Use ONLY with NTB09-138.
^ If there is not a match, this bulletin does not apply. Refer to ASIST for further diagnostic information.
3. If this bulletin applies and you have performed TCM reprogramming, the screen in Figure 2 displays when reprogramming is complete.
4. Make sure to erase DTCs from all systems.
NOTE:
During reprogramming, DTCs will set in several systems and must be erased.
5. Test drive the vehicle and make sure it operates correctly.
^ Diagnosis and repairs beyond TCM reprogramming are not covered by this bulletin.
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