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

Mazda CX-5 Service & Repair Manual / Engine / Control / 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 ...

Crankshaft Position (CKP) Sensor Inspection

Visual Inspection CAUTION: When foreign material such as an iron chip is on the CKP sensor, it can cause abnormal output from the sensor because of flux turbulence and adversely affect ...

Other materials:

B Pillar Lower Trim Removal/Installation
1. Remove the front scuff plate.. 2. Remove the rear scuff plate.. 3. Partially peel back the seaming welt. 4. Take the shaded area shown in the figure, and pull the B-pillar lower trim in the direction of the arrow in the order of (1), (2) while detaching hooks A, pins B. 5. Take th ...

Front Lower Arm Inspection
1. Remove the front lower arm.. 2. Inspect the front lower arm for bending or damage, and the front lower arm ball joint for excessive looseness. If there is any malfunction, replace the front lower arm. 3. Rotate the front lower arm ball joint stud 5 times. Install the SST ...

Front Door Trim Removal/Installation
1. Disconnect the negative battery cable.. 2. Remove the inner garnish.. 3. Insert a tape-wrapped flathead screwdriver in the position indicated by the arrow (1) in the figure and remove the inner handle cover while detach tabs A, pin B. 4. Remove the screw C. 5. Remove the cover ...