Toyota Tacoma manuals

Toyota Corolla Repair Manual: Circuit description

The camshaft position sensor (g22+ signal) consists of a magnet, iron core and pickup coil.

The g22+ signal plate has 3 teeth on its outer circumference and is installed on the camshaft timing pulley.

When the camshafts rotate, the protrusion on the signal plate and the air gap on the pickup coil changes, causing fluctuations in the magnetic field and generating an electromotive force in the pickup coil.

The ne+ signal plate (crankshaft timing pulley) has 34 teeth and is installed to the crankshaft. The ne+ signal sensor generates 34 signals at every engine revolution. The ecm detects the crankshaft angle and the engine revolution based on the ne+ signals, and the cylinder and the angle of the vvt based on the combination of the g22+ and ne+ signals.

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 camshaft position sensor despite the engine revolving, or if the rotation of the camshaft and the crankshaft is not synchronized, the ecm interprets this as a malfunction of the sensor.

Monitor strategy

Typical enabling conditions

Typical enabling conditions

Typical malfunction thresholds

Typical malfunction thresholds

Component operating range

Component operating range

Wiring diagram

Wiring diagram

Refer to dtc p0335

Camshaft position sensor a circuit
Dtc p0340 camshaft position sensor a circuit (bank 1 or single sensor) Dtc p0341 camshaft position sensor a circuit range/performance (bank 1 or single sensor) ...

Inspection procedure
Hint: read freeze frame data using the hand-held tester or the obd ii scan tool. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, it is usefu ...

Other materials:

Replacement
1. Discharge refrigerant from refrigeration system  turn the a/c switch on.  operating the cooler compressor at the engine rpm of approx. 1000 For 5 to 6 min., Circulate the refrigerant and collect compressor oil remaining in each component into the cooler compressor as much ...

Replacement
1. Drain brake fluid Notice: wash the brake fluid off immediately if it comes into contact with any painted surface. 2. Remove air cleaner cap subassy 3. Remove air cleaner case subassy  remove the air cleaner element, then remove the 3 bolts and air cleaner case subassy. 4. ...

Mechanical system tests
1. Perform mechanical system tests Measure the stall speed. The object of this test is to check the overall performance of the transaxle and engine by measuring the stall speeds in the d and r positions. Notice: Do the test at normal operating atf temperature 50 to 80 c (122 to ...

2011-2019 Copyright www.tcorolla.net