Fuel System > Engine Control System > P0315 Camshaft Position (CMP) Sensor Error

General Description

The Crankshaft Position Sensor (CKPS) is a magnetic field sensitive type sensor that generates voltage using a sensor and a target wheel mounted on the crankshaft; there are 58 slots in the target wheel where one is longer than the others.During one crankshaft rotation there are 58 rectangular signals and one longer signal. The PCM calculates engine RPM by using the sensor's signal and controls the injection duration and the ignition timing. Using the signal differences caused by the longer slot, the PCM identifies which cylinder is at top dead center.

DTC Description

Checking tooth error correction under detecting condition, if the TEC(Tooth Error Correction) is out of Threshold value, PCM sets P0315.

DTC Detecting Condition

Item

Detecting Condition

Possible cause

DTC Strategy

•	This DTC indicates that crankwheel tooth error has not been learned.

•	Loosened CKPS

•	Target wheel

•

PCM

Enable Conditions

•	10% ≤ Engine load < 90%

•	2000 rpm ≤ engine speed ≤ 4000 rpm

•	TEC(Tooth Error Correction) RPM stability timer > 10sec

•	0°C(32°F) < coolant temperature < 110°C(230°F)

•	Not active disabling faults

Threshold value

•	Distance driven without learning(during fuel cut off) tooth error ≥ 6500km(4038.91275 mile)

•	Acutal Value is higher or lower than calibrated value

Diagnosis Time

•	Continuous

MIL On Condition

•

DTC only

Monitor DTC Status

Check DTC Status

(1)	Connect scantool to Data Link Connector(DLC).

(2)

IG "ON".

(3)	Select "DTC" button, and then Press "DTC Status" to check DTC's information from the DTCs menu.

(4)	Read "DTC Status" parameter.

(5)

Is parameter displayed "Present fault"?

	▶ Go to "Component Inspection" procedure.
	▶ Fault is intermittent caused by PCM memory was not cleared after repair. Erase DTC and drive the vehicle to satisfy the enable condition then, go to " Component Inspection" procedure.

Component Inspection

Visually check CKPS and target wheel

(1)

IG "OFF"

(2)	Visually check CKPS is loosened or target wheel is deformed or damaged.

(3)

Are normal conditions present ?

	▶ Substitute with a known - good PCM and check for proper operation. If the problem is corrected, replace PCM and go to "Verification of Vehicle Repair" procedure.
	▶ Repair or replace as necessary and then go to"Verification of Vehicle Repair" procedure.

Verification Of Vehicle Repair

After a repair, it is essential to verify that the fault has been corrected.

1.	Connect scantool and select "DTC" button.

2.	Press "DTC Status" button and confirm that "DTC Readiness Flag" indicates "Completed". If not, drive the vehicle within conditions noted in the freeze frame data or enable conditions

3.	Read "DTC Status" parameter

Is parameter displayed "History(Not Present) fault"?

	▶ System performing to specification at this time. Clear the DTC
	▶ Go to the applicable troubleshooting procedure.