Mazda CX-5 Service & Repair Manual: Knock Sensor (Ks)

Mazda CX-5 Service & Repair Manual / Engine / Control / Knock Sensor (Ks)

Purpose/Function

Detects abnormal combustion in the cylinder as basic information for mainly determining the ignition timing.
Detects abnormal combustion in the combustion chamber and inputs it to the PCM as a knocking signal.

Construction

Installed on the cylinder block.
A piezoelectric element has been adopted as the detecting element for detecting abnormal combustion.

Operation

Inputs the signal, which fluctuates according to abnormal combustion, to the PCM.

KS characteristic

Fail-safe


DTC No.	Fail-safe function
P0327:00	Sets the knocking spark retard correction value of the ignition control to the fixed value.
P0328:00	Sets the knocking spark retard correction value of the ignition control to the fixed value.

Knock Sensor (Ks) Removal/Installation

1. Disconnect the negative battery cable.. 2. Remove the plug hole plate.. 3. Remove the intake manifold.. 4. Disconnect the KS connector. 5. Remove the KS.. 6. Install in the reverse or ...

Manifold Absolute Pressure (Map) Sensor/Intake Air Temperature (Iat) Sensor No.2 Removal/Installation

NOTE: Because the IAT sensor No.2 is integrated in the MAP sensor, replacing the IAT sensor No.2 includes replacement of the MAP sensor/IAT sensor No.2. 1. Disconnect the negative bat ...

Other materials:

Auto Leveling Sensor Inspection
1. Disconnect the negative battery cable.. 2. Remove the auto leveling sensor.. 3. Prepare three dry cell batteries (1.5 V). 4. Connect the three dry cell batteries in a series. 5. Connect the positive pole of the dry cell battery to auto leveling sensor terminal C, and the negative po ...

Air Fuel Ratio (A/F) Sensor
Purpose/Function Detects the oxygen concentration (all-range air/fuel ratio) in the exhaust gas as basic information for mainly determining the fuel injection amount. Detects the oxygen concentration (all-range air/fuel ratio) in the exhaust gas and inputs it to the PCM as an ox ...

Flywheel Inspection [C66 M R]
1. Remove the flywheel.. 2. Perform the following procedures to inspect the flywheel. If there is any malfunction or it exceeds the maximum specification, replace the flywheel.. a. Inspect the surface that contacts the clutch disc for scratches, nicks, and discoloration. ...