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
P0643 sensor power supply
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform
the following before conducting
the next test.
Turn ignition switch OFF and wait at least 10 seconds.
Turn ignition switch ON.
Tu ...
Types of tires
WARNING
When changing or replacing tires, be
sure all four tires are of the same type
(i.e., Summer, All Season or Snow) and
construction. A NISSAN dealer may be
able to help you with information about
tire type, size, speed rating and
availability.
Replacement tires may have a low ...
Oil filter
Removal and Installation
REMOVAL
Drain engine oil. Refer to LU-9, "Changing Engine Oil".
Remove front fender protector side cover (RH). Refer to EXT-15,
"Exploded View".
Remove the oil filter using Tool (A) as shown.
Tool number : KV10115801 (J-38956)
WARNING: Be ...