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:

M Position Switch Inspection [Fw6 A EL, Fw6 Ax EL]
Continuity Inspection NOTE: The M position switch is built into the selector lever component. 1. Disconnect the negative battery cable.. 2. Remove the front console.. 3. Disconnect the selector lever component connector. 4. Verify that the continuity between selector lever c ...

Plug Hole Plate Removal/Installation
CAUTION: If the rubber on only one side of the plug hole plate front is lifted up, it could damage the adapter at the location shown in the figure. When removing the plug hole plate, lift up the rubbers at the same time. Removal 1. Pull up the front part of the plug hole p ...

Starter Interlock Switch Inspection [Skyactiv G 2.0]
CAUTION: Do not reuse the starter interlock switch if it is removed from the vehicle even once. Replace with a new starter interlock switch when installing. 1. Disconnect the negative battery cable.. 2. Disconnect the starter interlock switch connector. 3. Verify that the contin ...