Classification: HA12-009
Reference: NTB12-069
Date: August 20, 2012
2007 - 2012 ALTIMA AND 2009 - 2012 MAXIMA;
A/C IS NOT COOLING / POOR PERFORMANCE
APPLIED VEHICLES: 2007 - 2012 Altima Sedan and Coupe (L32 / CL32)
2009 - 2012 Maxima (A35)
IF YOU CONFIRM
The A/C system is not cooling the cabin to factory specification,
and
The A/C compressor clutch is engaged,
and
The A/C system is fully charged,
and
The HVAC system doors and controls are working correctly.
ACTIONS
| 1. |
Check the A/C system pressures:
| ^ |
If the A/C system pressures are HIGH side low and LOW side low, go to step 2.
|
| ^ |
If the A/C pressures are any other then above, this bulletin does not apply. Refer to ASIST and the Service Manual for further diagnostic information.
|
|
| 2. |
By feel, or with an infrared thermometer; check the temperature of the condenser / receiver dryer outlet tube.
| ^ |
Tube is Warm or Hot: This bulletin does not apply. Refer to ASIST and the Service Manual for further diagnostic information.
|
| ^ |
Tube is Cool or Cold: Replace the condenser and receiver dryer assembly.
|
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PARTS INFORMATION
CLAIMS INFORMATION
SERVICE PROCEDURE:
| 1. |
Check the A/C system pressures:
| ^ |
Refer to the appropriate Service Manual for system pressure specifications.
|
| ^ |
If the A/C system pressures are: HIGH side = low and LOW side = low, go to step 2 below.
|
| ^ |
If the A/C pressures are any other then above, this bulletin does not apply. Refer to ASIST and the Service Manual for further diagnostic information.
|
|
| 2. |
By feel, or with an infrared thermometer; check the temperature of the receiver dryer outlet tube.
| ^ |
Tube is Warm or Hot: This bulletin does not apply. Refer to ASIST and the Service Manual for further diagnostic information.
|
| ^ |
Tube is Cool or Cold: Replace the condenser and receiver dryer assembly.
|
Refer to the appropriate Service Manual for replacement information. Follow all Service Manual warnings and cautions as applicable.
NOTE:
| ^ |
Cool or Cold receiver dryer outlet tube indicates a blockage in the receiver dryer or condenser.
|
| ^ |
If desired, the filter can be removed from the receiver dryer to confirm the root cause of the issue was blockage (debris) in the receiver dryer.
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|
| ^ |
Figure 2 shows an example of a receiver dryer filter that is bowed and plugged with debris.
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