CAMSHAFT POSITION SENSOR (CMPS)

Description and Operation

Description

The Camshaft Position Sensor (CMPS) is a Hall effect sensor that detects the camshaft position using a Hall effect element. It works together with the Crankshaft Position Sensor (CKPS) and identifies the piston position of each cylinder, which the CKPS system cannot detect. The CMPS is installed on the cylinder head cover and uses a vane-type target installed on the camshaft. The camshaft position sensor is a Hall effect sensor. When the target wheel passes the sensor, the change in magnetic field in the sensor activates the sensor, which generates a square wave signal.

Troubleshooting

Signal Waveform

Circuit Diagrams

Wiring Diagram

(B)

(MT)

Repair Procedures

Inspection

1. Check the CMPS and CKPS signal waveform using the GDS.

   Specification: Refer to "WAVEFORM"

DEPOSIT

[Bank 1 / Intake]

1. 1
   Turn the ignition switch to the OFF position and disconnect the negative (-) battery cable.
2. 2
   Disconnect the camshaft position sensor connector (A).
3. 3
   Remove the installation bolt (B), then remove the sensor.

   

[Bank 1 / Exhaust]

1. 1
   Turn the ignition switch to the OFF position and disconnect the negative (-) battery cable.
2. 2
   Disconnect the camshaft position sensor connector (A).
3. 3
   Remove the installation bolt (B), then remove the sensor.

   

REMEDY

1. To install, reverse the removal procedure. Camshaft position sensor mounting bolt: 9.8 – 11.8 N·m