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Toyota Corolla Repair Manual: Circuit description

The crankshaft position sensor (ne signal) consists of a magnet, iron core and pickup coil.

The ne signal plate (crankshaft position sensor plate) has 34 teeth and is installed on the crankshaft. The ne signal sensor generates 34 signals for each engine revolution. This sensor monitors a plate (timing rotor) located on the crankshaft timing pulley and is used by the ecm to detect crankshaft angle and engine speed (rpm/ne). As the crankshaft timing pulley rotates through an engine revolution, this sensor communicates the rotation of the ne signal plate as a pulse signal to the ecm. Based on the signal, the ecm controls fuel injection time and ignition timing.

Reference: inspection using the oscilloscope.

Reference: inspection using the oscilloscope.

Hint

: the correct waveform is as shown on the left.

Monitor description

Monitor description

If there is no signal from the crankshaft sensor despite the engine revolving, the ecm interprets this as a malfunction of the sensor.

Monitor strategy

Typical enabling conditions

Typical enabling conditions

Typical malfunction thresholds

Typical malfunction thresholds

Wiring diagram

Wiring diagram

Inspection procedure

Crankshaft position sensor a circuit
Dtc p0335 crankshaft position sensor a circuit Dtc p0339 crankshaft position sensor a circuit intermittent ...

Inspection procedure
Hint: perform the troubleshooting of dtc p0335 first. If no trouble is found, troubleshoot the engine mechanical systems. Read freeze frame data using the hand-held tester or the obd ii sca ...

Other materials:

Replacement
Hint: components: 1. Remove rear wheel 2. Remove rear brake drum subassy 3. Disconnect skid control sensor wire (w/ abs) 4. Remove rear axle hub & bearing assy lh Remove the 4 bolts and hub & bearing assy lh. 5. Install rear axle hub & bearing assy lh Install the ...

Rear view monitor system
The rear view monitor system assists the driver by displaying guide lines and an image of the view behind the vehicle while backing up, for example while parking. The screen illustrations used in this text are intended as examples, and may differ from the image that is actually displayed on t ...

Inspection procedure
1 Check voltage at ig2 of airbag sensor assy center Disconnect the negative () terminal cable from the battery, and wait at least for 90 seconds.  disconnect the connector of the airbag sensor assy center.  connect the negative () terminal cable to the battery, and wait a ...

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