P0340 2003 NISSAN ALTIMA SEDAN - Camshaft Position Sensor Circuit
P0340 2003 NISSAN ALTIMA SEDAN Possible Causes
- Faulty Camshaft Position Sensor
- Camshaft Position Sensor harness is open or shorted
- Camshaft Position Sensor circuit poor electrical connection
- Faulty starter motor
- Starting system circuit
- Dead (Weak) battery
First diagnose P0340 2003 NISSAN ALTIMA SEDAN code
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.
P0340 2003 NISSAN ALTIMA SEDAN Tech NotesThere is a factory service bulletin for the 2003 Nissan Altima:
2003 Nissan Altima Factory Service Bulletin OBDII Code P0340
Camshaft Positioning Sensor Replacement - 2003 Nissan Altima
User Submitted Video
Cost of diagnosing the P0340 2003 NISSAN ALTIMA SEDAN code
Labor: 1.0The cost of diagnosing the P0340 2003 NISSAN ALTIMA SEDAN code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
When is the P0340 2003 NISSAN ALTIMA SEDAN code detected?The camshaft position sensor signal is not detected by the Engine Control Module(ECM) during the first few seconds of engine cranking
P0340 2003 NISSAN ALTIMA SEDAN Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Lack/Loss of Power
- Engine Stall
P0340 2003 NISSAN ALTIMA SEDAN MeaningThe Camshaft Position Sensor is an electronic device used in an engine to record the rate at which the camshaft is spinning. This information is used by the Engine Control Module(ECM) to control ignition and fuel injection. The camshaft position sensor senses the retraction of camshaft (intake) to identify a particular cylinder. The camshaft position sensor senses the piston position. The sensor system consists of a rotating part, typically a disc, as well as a static part, the actual sensor.
When the engine is running, the high and low parts of the teeth cause the gap with the sensor to change. The changing gap causes the magnetic field near the sensor to change. The change in the magnetic field cause the voltage from the sensor to change.
When the crankshaft position sensor (POS) system becomes inoperative, the camshaft position sensor provides various controls of engine parts instead, utilizing timing of cylinder identification signals.
*Sensor design may vary for your model and year
P0340 2003 NISSAN ALTIMA SEDAN More InformationNeed more information on how to fix the P0340 2003 NISSAN ALTIMA SEDAN code?
Get Access to Factory Service Manuals