This technical bulletin is for technicians who need to diagnose and repair issues with the CVT fluid temperature protection logic in 2007-2010 Altima models.
Overview: The bulletin explains that under certain conditions, the vehicle speed may be reduced due to the CVT fail-safe logic, resulting in symptoms such as loss of engine performance, whine or rattle noise, and reduced vehicle speed. The purpose of this technical bulletin is to guide technicians in diagnosing and repairing these issues.
Diagnosis
To diagnose the issue, technicians should follow the instructions outlined in the bulletin, including performing a self-diagnosis with CONSULT-III plus, checking the CVT-A and CVT-B counts, and referring to the Flow Chart on page 2 and the Service Procedure starting on page 3.
Repair
If the diagnosis indicates that the issue is caused by the CVT fluid temperature protection logic, technicians should follow the Service Procedure starting on page 3, which includes replacing the CVT assembly, installing the External CVT Fluid Cooler kit, and performing other repairs as necessary.
Remember to always follow the proper procedures and guidelines outlined in this technical bulletin and other relevant documentation to ensure successful diagnosis and repair of these issues.
Manual:
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