| DTC Code | DTC Name |
|---|---|
| P0335 | Crankshaft Position Sensor "A" Circuit |
| P0339 | Crankshaft Position Sensor "A" Circuit Intermittent |
DESCRIPTION
The crankshaft position sensor system consists of a crankshaft position sensor plate and pickup coil. The sensor plate has 34 teeth and is installed on the crankshaft. The pickup coil is made of an iron core and magnet. The sensor plate rotates, and a pulse signal is created as each tooth passes by the pickup coil. The pickup coil generates 34 signals for each revolution. Based on these signals, the ECM calculates the crankshaft position and engine speed. Using these calculations, the common rail injection system is controlled.
| DTC Detection Drive Pattern | DTC Detection Condition | Trouble Area |
|---|---|---|
| Crank or start engine | When the following condition is met (for 5 seconds during cranking or 0.5 seconds during engine start) (1 trip detection logic): No crankshaft position sensor signal is sent to the ECM while cranking. |
|
| DTC Detection Drive Pattern | DTC Detection Condition | Trouble Area |
|---|---|---|
| Engine running at 1000 rpm or more with vehicle stationary | No crankshaft position sensor signal is input to the ECM for 0.05 seconds or more, and conditions (a), (b) and (c) are met (1 trip detection logic):
|
|
| DTC No. | Data List |
|---|---|
| P0335 | Engine Speed |
| P0339 |
Tech Tips
If DTC P0335 and/or P0339 is stored, the following symptoms may appear:
Difficulty starting
Misfire
Combustion noise
Black smoke
White smoke
Lack of power
WIRING DIAGRAM
INSPECTION PROCEDURE
Note
After replacing the ECM, the new ECM needs registration Click here and initialization Click here.
Tech Tips
Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.
The Data List item Engine Speed is calculated from the output of the crankshaft position sensor.
A DTC is also stored when the ground of a shielded wire is faulty.
PROCEDURE
INSPECT CRANKSHAFT POSITION SENSOR
Inspect the crankshaft position sensor Click here.
| NG |
|
REPLACE CRANKSHAFT POSITION SENSOR Click here |
| OK |
|
CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)
Disconnect the crankshaft position sensor connector.
Disconnect the ECM connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance (Check for Open) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| Standard Resistance (Check for Short) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
Reconnect the crankshaft position sensor connector.
Reconnect the ECM connector.
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR Click here |
| OK |
|
CHECK CRANKSHAFT POSITION SENSOR (SENSOR INSTALLATION)
Check the sensor installation.
| OK |
|---|
| Sensor is installed correctly. |
| NG |
|
SECURELY REINSTALL SENSOR Click here |
| OK |
|
CHECK NO. 1 CRANKSHAFT POSITION SENSOR PLATE
Check the teeth of the sensor plate.
| OK |
|---|
| The sensor plate teeth do not have any cracks or deformation. |
| NG |
|
REPLACE NO. 1 CRANKSHAFT POSITION SENSOR PLATE Click here |
| OK |
|
INSPECT CAMSHAFT TIMING PULLEY
Check the teeth of the camshaft timing pulley.
| OK |
|---|
| The sensor plate teeth do not have any cracks or deformation. |
| NG |
|
REPLACE CAMSHAFT TIMING PULLEY Click here |
| OK |
|
REPLACE ECM
Replace the ECM Click here.
| NEXT |
|
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here |
REPLACE CRANKSHAFT POSITION SENSOR
Replace the crankshaft position sensor Click here.
| NEXT |
|
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here |
REPAIR OR REPLACE HARNESS OR CONNECTOR
Repair or replace the harness or connector.
| NEXT |
|
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here |
SECURELY REINSTALL SENSOR
Securely reinstall the sensor Click here.
| NEXT |
|
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here |
REPLACE NO. 1 CRANKSHAFT POSITION SENSOR PLATE
Replace the No. 1 crankshaft position sensor plate Click here.
| NEXT |
|
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED Click here |
REPLACE CAMSHAFT TIMING PULLEY
Replace the camshaft timing pulley Click here.
| NEXT |
|
CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED
Connect the intelligent tester to the DLC3.
Clear the DTCs Click here.
Turn the ignition switch off for 30 seconds or more.
Start the engine and run it at 1000 rpm or more for 5 seconds or more.
Confirm that the DTC is not output again.
| NEXT |
|
END