A/C - Compressor Noise In Extremely Cold Temperatures
Classification: HA10-001AReference: NTB10-022A
Date: May 21, 2010
2007-2009 VERSA; A/C COMPRESSOR NOISE IN VERY COLD WEATHER
This bulletin has been amended. Please discard any previous copies.
APPLIED VEHICLES: 2007-2009 Versa (C11)
APPLIED TRANSMISSIONS: Continuously Variable Transmission (CVT) ONLY
IF YOU CONFIRM
The A/C compressor is noisy when running:
^ With ambient and compressor temperatures at or below 32°F (0�°C).
^ After the engine is first started cold.
ACTIONS
1. Confirm this bulletin applies.
a. Check and compare your current ECM Part Number to Table A.
b. If that part number does not match one in Table A, this bulletin does not apply. Go back to ASIST for further diagnostic and repair information.
2. If this bulletin applies, reprogram the ECM.
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.
SERVICE PROCEDURE
1. Connect C-III to the vehicle to begin the reprogramming procedure.
CAUTION
2. When you get to the ECM Reprogramming screen shown in Figure 1, confirm this bulletin applies as follows.
A. On your C-III screen, look at the Part Number column (see Figure 1):
^ If this column is blank (no part number listed), this bulletin does not apply. Close C-III and refer to ASIST for further diagnostic information.
^ If a Part Number is listed, write it on the Repair Order.
B. Compare the Part Number you wrote down to the numbers in the Current ECM Part Number 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 that does not have the message "Caution! Use ONLY with NTBXX-XXX".
^ If there is not a match, this bulletin does not apply. Close C-III and refer to ASIST for further diagnostic information.
3. If this bulletin applies and you have performed ECM reprogramming, the screen in Figure 2 appears when reprogramming is complete.
NOTE:
If the screen in Figure 2 does NOT display (reprogramming does NOT complete), click here. This links to the ECM Reprogram Interruption Recovery General Procedure.
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 and the Check Engine light is OFF.
^ If the Check Engine light comes ON, go back to ASIST for further diagnostic information. Refer to the applicable Electronic Service Manual as needed.
^ Diagnosis and repairs beyond ECM reprogramming are not covered by this bulletin.