Nissan Altima Owners Manual: Increasing fuel economy
● Keep your engine tuned up.
● Follow the recommended scheduled maintenance.
● Keep the tires inflated to the correct pressure.
Low tire pressure increases tire wear and lowers fuel economy.
● Keep the wheels in correct alignment. Improper alignment increases tire wear and lowers fuel economy.
● Use the recommended viscosity engine oil.
See “Engine oil and oil filter recommendations” in “Technical and consumer information” in this manual.
Can communication circuit
Diagnosis Procedure INSPECTION PROCEDURE 1.CONNECTOR INSPECTION 1. Turn the ignition switch OFF. 2. Disconnect the battery cable from the negative terminal. 3. Disconnect all the unit connectors on CAN communication system. 4. Check terminals and connectors for damage, bend and loose con ...
DLC Branch line circuit
Diagnosis Procedure INSPECTION PROCEDURE 1.CHECK CONNECTOR 1. Turn the ignition switch OFF. 2. Disconnect the battery cable from the negative terminal. 3. Check the terminals and connectors of the data link connector for damage, bend and loose connection (connector side and harness side) ...
Power supply and ground circuit
Diagnosis Procedure 1.CHECK GROUND CONNECTION 1. Turn ignition switch OFF. 2. Check ground connection E9. Refer to Ground Inspection in GI-45, "Circuit Inspection". Is the inspection result normal? YES >> GO TO 2. NO >> Repair or replace ground connection. 2.CHE ...