To help ensure smooth, safe and economical driving, NISSAN provides two maintenance schedules that may be used, depending upon the conditions in which you usually drive. These schedules contain both distance and time intervals, up to 120,000 miles (192,000 km)/144 months. For most people, the odometer reading will indicate when service is needed. However, if you drive very little, your vehicle should be serviced at the regular time intervals shown in the schedule.
After 120,000 miles (192,000 km)/144 months, continue maintenance at the same mileage/time intervals.
Additional maintenance items for severe operating conditions
Additional maintenance items for severe operating conditions should be performed on vehicles that are driven under especially demanding conditions. Additional maintenance items should be performed if you primarily operate your vehicle under the following conditions:
NOTE:
For vehicles operated in Canada, both standard and severe maintenance items should be performed at every interval.
Explanation of scheduled maintenance itemsThe following descriptions are provided to give you a better understanding of the scheduled maintenance items that should be regularly checked or replaced. The maintenance schedule indicates at wh ...

The following tables show the standard maintenance schedule. Depending upon weather and atmospheric conditions, varying road surfaces, individual driving habits and vehicle usage, additional or mo ...
U0073 Communication bus a off
DTC Logic
DTC
Trouble diagnosis name
DTC detecting condition
Possible causes
U0073
Control Module Communication
Bus "A" Off
When the ignition switch is ON,
TCM detects a bus-off error
continuously for 2 seconds or
more.
Harness or connector
(CA ...
Air breather hose
Removal and Installation
REMOVAL
Remove air duct (inlet). Refer to EM "Exploded View".
Remove air breather hose from transaxle assembly.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Check that air breather hose is not collapsed or blocked due to ...