Operation CHARM: Car repair manuals for everyone.

P1336







Component Description
The crankshaft position sensor (POS) is located on the cylinder block rear housing facing the gear teeth (cogs) of signal plate at end of crankshaft drive plate. 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 to 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.

On Board Diagnosis Logic:






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.




With CONSULT-II
1. Turn ignition switch "ON" and select "DATA MONITOR" mode with CONSULT-II.
2. Start engine and run it for at least 4 minutes at idle speed.
3. If 1st trip DTC is detected, go to "Diagnostic Procedure" below.

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

EC-POS-01:




EC-POS-01 Connector View:




ECM Terminals And Reference Value:




Wiring Diagram

Diagnostic Procedure Steps 1 - 4:




Diagnostic Procedure Steps 5 - 9:




Diagnostic Procedure Steps 10 - 11:




Diagnostic Procedure

Component Inspection

CRANKSHAFT POSITION SENSOR (POS)




1. Disconnect crankshaft position sensor (POS) harness connector.
2. Loosen the fixing bolt of the sensor.
3. Remove the sensor.
4. Visually check the sensor for chipping.







5. Check resistance as shown in the figure.
If NG, replace crankshaft position sensor (POS).