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:

Brake Fluid Air Bleeding
CAUTION: Brake fluid will damage painted surfaces. Be careful not to spill any on painted surfaces. If it is spilled, wipe it off immediately. NOTE: Keep the fluid level in the brake fluid reserve tank at 3/4 full or more during the air bleeding. Begin air bleedin ...

Upper Panel Removal/Installation
1. Disconnect the negative battery cable.. 2. Remove the following parts: a. Front console box. b. Shift lever knob (MTX). c. Shift panel. 3. Open the console lid. 4. Remove the button, then open the fastener. 5. Take the shaded area shown in the figure, and remove the upper panel ...

Rear Seat Center Armrest Removal/Installation
1. Operate the push knob (RH) and lower the rear seat back (RH). 2. Remove screw A. 3. Remove the rear seat center armrest hinge cover (RH) in the direction of the arrow (1) shown in the figure while setting hook A aside. 4. Remove bolt B. 5. Remove the rear seat center armrest in ...