Description
The ECM controls the engine idle speed to a specified level via the fine adjustment of the air, which is let into the intake manifold, by operating the electric throttle control actuator. The operating of the throttle valve is varied to allow for optimum control of the engine idling speed. The crankshaft position sensor (POS) detects the actual engine speed and sends a signal to the ECM.
The ECM controls the electric throttle control actuator so that the engine speed coincides with the target value memorized in the ECM. The target engine speed is the lowest speed at which the engine can operate steadily.
The optimum value stored in the ECM is determined by taking into consideration various engine conditions, such as during warming up, deceleration and engine load (air conditioner, power steering and cooling fan operation, etc.).
DTC Logic
DTC DETECTION LOGIC
NOTE: If DTC P0506 is displayed with other DTC, first perform the trouble diagnosis for the other DTC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.
If the target idle speed is out of the specified value, perform EC-21, "IDLE AIR VOLUME LEARNING : Special Repair Requirement", before conducting DTC CONFIRMATION PROCEDURE.
TESTING CONDITION:
2.PERFORM DTC CONFIRMATION PROCEDURE
Diagnosis Procedure
1.CHECK INTAKE AIR LEAKAGE
2.REPLACE ECM
Startup display
When the vehicle in placed in the ON or ACC
position the screens that display in the vehicle
information display include:
Home
Audio
Navigation
Drive Computer
Fuel economy
Driving Aids (if so equipped)
Tire Pressures
Chassis Control (if so equipped)
SPORT
Warning Review
Set ...
Battery replacement
CAUTION
Be careful not to allow children to swallow
the battery or removed parts.
NISSAN Intelligent Key
Replace the battery in the Intelligent Key as follows:
1. Remove the mechanical key from the Intelligent
Key.
2. Insert a small flathead screwdriver A into
the slit B of the corner ...
Basic inspection
COMPONENT INSPECTION
Inspection
AFTER A COLLISION
WARNING: Inspect all seat belt assemblies
including retractors and attaching hardware after any collision.
NISSAN/INFINITI recommends that all seat belt assemblies in use during a
collision be replaced unless the collision was minor and the b ...