Camshaft Position Sensor (CMPS) is a hall sensor and detects the camshaft position by using a hall element.
It is related with Crankshaft Position Sensor (CKPS) and
detects the piston position of each cylinder which the CKPS can''t
detect.
The two CMPS are installed on engine head cover of bank 1 and
2 respectively and uses a target wheel installed on the camshaft. The
Cam Position sensor is a hall-effect type sensor. As the target wheel
passes the Hall sensor, the magnetic field changes in the sensor. The
sensor then switches a signal which creates a square wave.
Inspection
1.
Check the signal waveform of the CMPS and CKPS using the GDS.
Specification: Refer to “Wave Form”
Removal
1.
Turn the ignition switch OFF and disconnect the battery negative (-) cable.
Instructions
When Handling Refrigerant
1.
R-134a liquid refrigerant is highly volatile. A drop on the
skin of your hand could result in localized frostbite. When handling the
refrigerant, be sure to wear gloves.
2.
It is standard practice to wear goggles or glasses to protect
your eyes, and gloves to protect your hands.