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:

Front Bumper Reinforcement Removal/Installation
1. Disconnect the negative battery cable.. 2. Remove the following parts: a. Seal board upper. b. Front bumper. c. Front combination light. d. Set plate. e. Energy-absorbing form. f. Front under cover No.1. g. Bumper stiffener lower. 3. Support the shroud panel using a jack. CAUT ...

Washer Fluid Level Sensor Inspection
1. Disconnect the negative battery cable.. 2. Set the front over fender aside.. 3. Set the mudguard (RH) aside.. 4. Remove the front bumper.. 5. Inspect for continuity according to washer fluid level between the washer fluid-level sensor terminals. If not as indicated in th ...

Blower Unit Removal/Installation
1. Disconnect the negative battery cable.. 2. Remove the following parts: a. Front scuff plate (passenger-side). b. Front side trim (passenger-side). c. Dashboard under cover. d. Glove compartment. e. Decoration panel. f. Lower panel (passenger-side). 3. Disconnect the blower motor c ...