P0335

P0335 CRANKSHAFT POSITION (CKP) SENSOR (POS)

COMPONENT DESCRIPTION
The crankshaft position sensor (POS) is located on the cylinder block rear housing facing the gear teeth (cogs) of the signal plate at the end of the crankshaft. It detects the fluctuation of the engine revolution.

The sensor consists of a permanent magnet and hall IC.

When the engine is running, the high and low parts of the teeth cause the gap with the sensor change.

The changing gap causes the magnetic field near the sensor to change.

Due to the changing magnetic field, the voltage from the sensor changes.

The ECM receives the voltage signal and detects the fluctuation of the engine revolution.

Consult-II Reference Value In Data Monitor Mode:

On Board Diagnosis Logic
Malfunction is detected when
(Malfunction A) the crankshaft position sensor (POS) signal is not detected by the ECM during the first few seconds of engine cranking,
(Malfunction B) the proper pulse signal from the crankshaft position sensor (POS) is not sent to ECM while the engine is running,
(Malfunction C) the crankshaft position sensor (POS) signal is not in the normal pattern during engine running.

Possible Cause
- Harness or connectors
[The crankshaft position sensor (POS) circuit is open or shorted.]
- Crankshaft position sensor (POS)

DTC Confirmation Procedure

NOTE: If "DTC Confirmation Procedure" has been previously conducted, always turn ignition switch "OFF" and wait at least 10 seconds before conducting the next test.

TESTING CONDITION: Before performing the following procedure, confirm that battery voltage is more than 10.5 V with ignition switch "ON".

With CONSULT-II
1. Turn ignition switch "ON" and select "DATA MONITOR" mode with CONSULT-II.
2. Crank engine for at least 2 seconds and run it for at least 5 seconds at idle speed.
3. If 1st trip DTC is detected, go to "Diagnostic Procedure"

With GST
Follow the procedure "WITH CONSULT-II" above.