Troubleshooting

P0335 - Crankshaft Position Sensor "A" Circuit Malfunction

CIRCUIT DESCRIPTION

DTC Detecting Condition:

The crankshaft position sensor built in the oil pump body detects the engine speed and crankshaft angle signal (NE signal), The NE signal plate has 34 teeth and is installed in the crankshaft timing pulley. The NE signal sensor generates 34 signals at every engine revolution. The ECM detects the standard crankshaft angle based on the G signal, the actual crankshaft angle and the engine speed by the NE signal.

Wiring Diagram:

Step 1 - 3:

INSPECTION PROCEDURE

HINT:
- Perform a troubleshooting of DTC P0335 first. If no trouble is found, troubleshoot the following mechanical systems.
- Read freeze frame data using LEXUS hand-held tester or OBD II scan tool. Because freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is useful for determining whether the vehicle was running or stopped, the engine was warmed up or not, the air-fuel ratio was lean or rich, etc. at the time of the malfunction.