4C20 Gasoline Engine Repair Manual
(4) Low level output: 0-400mV;
3. Pin arrangement
(5) High level output: 4.75V-5.25V (reference
voltage 5V).
1. Appointment
ÿ A: Signal
(a) Obtain a trouble code using a diagnostic scanner. This will allow you to
preliminarily determine the cause of a malfunction of the sensor, input or
output signal. Check the reliability of the electrical connections, the
condition of the contacts and the sensing element for damage.
5. Main faults:
ÿ B: signal ground
(a) The camshaft position sensor is a Hall effect sensor. It is installed close to
the camshaft and acts in conjunction with a target disk mounted on the
camshaft in a certain angular position. Using this sensor, the engine
control unit uses a voltage signal to determine the position of the pistons
in the cylinders in order to control each of the cylinders individually.
(a) An open or short in the circuit inside the sensor.
(b) Short circuit in the Hall sensor circuit to ground.
(c) Short circuit in the Hall sensor circuit to the reference voltage circuit
2. Working parameters
ÿC: +5V.
zheniya.
(1) Working temperature: -40-150°C;
(2) Operating voltage: 4.75V-5.25V;
(3) Working gap: 0.5-1.5mm;
4. Troubleshooting
08
A
06
42
B
4X
C
Camshaft position sensor
A
B
C
140
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