|
|
P0335 CKP SENSOR (POS) EC-745 < DTC/CIRCUIT DIAGNOSIS > [VK56DE] C D E F G H I J K L M A EC N P O P0335 CKP SENSOR (POS) Component Description INFOID:0000000007358610 The crankshaft position sensor (POS) is located on the A/T assem- bly facing the gear teeth (cogs) of the signal plate. It detects the fluc- tuation 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. ECM receives the signals as shown in the figure. On Board Diagnosis Logic INFOID:0000000007358611 DTC Confirmation Procedure INFOID:0000000007358612 NOTE: If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next step. 1. Turn ignition switch OFF and wait at least 10 seconds. 2. Turn ignition switch ON. 3. Turn ignition switch OFF and wait at least 10 seconds. TESTING CONDITION: Before performing the following procedure, confirm that battery voltage is more than 10.5 V with igni- tion switch ON. 1. Crank engine for at least 2 seconds and run it for at least 5 seconds at idle speed. Diagnosis Procedure INFOID:0000000007358613 1. CHECK GROUND CONNECTIONS PBIB0562E JMBIA1046GB DTC No. Trouble diagnosis name DTC detecting condition Possible cause P0335 Crankshaft position sensor • The crankshaft position sensor (POS) signal is not detected by the ECM during the first few • The proper pulse signal from the crankshaft position sensor (POS) is not sent to ECM while • The crankshaft position sensor (POS) signal is not in the normal pattern during engine run- • Harness or connectors (The sensor circuit is open or shorted) • Crankshaft position sensor (POS) August 2012 2012 Pathfinder |