Mazda CX-5 Service & Repair Manual: Camshaft Position (CMP) Sensor

Mazda CX-5 Service & Repair Manual / Engine / Engine Assembly / Valvetrain, Cylinder Head / Camshaft Position (CMP) Sensor

Purpose/Function

Detects the camshaft speed as basic information for mainly determining the fuel injection timing and ignition timing.
Detects the camshaft speed and inputs it to the PCM as a CMP signal.

Construction

Intake CMP sensor

Installed on the cylinder head.
A GMR element has been adopted as the detecting element for detecting the intake camshaft speed.

Exhaust CMP sensor

Installed on the rear housing.
A GMR element has been adopted as the detecting element for detecting the exhaust camshaft speed.

Operation

Inputs the signal, which fluctuates according to the camshaft speed, to the PCM.

CMP sensor characteristic

Fail-safe

Intake CMP sensor


DTC No.	Fail-safe function
P0340:00	Set the electric variable valve timing control to the maximum cam retard mode.

Exhaust CMP sensor


DTC No.	Fail-safe function
P0365:00	Stops the fuel injection. Stops the ignition.

Camshaft Position (CMP) Sensor Removal/Installation

CAUTION: When replacing the CMP sensor, make sure there is no foreign material on it such as metal shavings. If it is installed with foreign material, the sensor output signal will malfu ...

Camshaft

Purpose, Function The camshaft is rotated by receiving the rotation force of the crankshaft via the timing chain. The valve is opened and closed according to the cam shape at this time. ...

Other materials:

Traction Control System (TCS)
The Traction Control System (TCS) enhances traction and safety by controlling engine torque and braking. When the TCS detects driving wheel slippage, it lowers engine torque and operates the brakes to prevent loss of traction. This means that on a slick surface, the engine adjusts automaticall ...

Generator [Skyactiv G 2.0]
Purpose, Function The generator operates by obtaining drive force from the engine via the drive belt and generates the required electricity for electronic devices. Construction The generator is installed on the engine left front side. Output control is perfor ...

Passenger Compartment Temperature Sensor Inspection [Full Auto Air Conditioner]
1. Measure the temperature around the passenger compartment temperature sensor and measure the resistance between passenger compartment temperature sensor terminals A and B. If the characteristics of the passenger compartment temperature sensor are not as shown in the graph, replace t ...