Crankshaft Position Sensor (CKPS)

Description and Operation

Description

The crankshaft position sensor (CKPS) detects the crankshaft position and is one of the most important sensors in the engine control system. Loss of the CKPS signal may cause the engine to stop. Installed on the cylinder block or transaxle housing, it generates an alternating current by the magnetic flux field created by the sensor and the target wheel while the engine is running. The target wheel has 58 slots and 2 missing slots at 360 degrees CA (crank angle).

Specifications

Specification

Item	Specification
Coil Resistance (Ω)	500–620 [25 °C]
Pin	2

Circuit Diagrams

Wiring Diagram

Harness Connector

Repair Procedures

Inspection

1. Check the CMPS and CKPS signal waveforms using the diagnostic tool.

   Specification: Refer to "Waveform"

Removal

1. 1
   Turn the ignition switch OFF and disconnect the negative (-) battery terminal.
2. 2
   Remove the air cleaner assembly. (Refer to Engine Mechanical System - "Air Cleaner")
3. 3
   Remove the battery tray. (Refer to Engine Electrical System - "Battery")
4. 4
   Disconnect the crankshaft position sensor connector.
5. 5
   Remove the mounting bolt (B), then pull the sensor straight out of the transaxle case. Crankshaft Position Sensor Mounting Bolt: 6.8–9.8 N·m

   

Installation

Install the component to the specified torque. Be aware that internal damage may occur if the component is dropped. In this case, inspect the component before installation. Insert the sensor into the mounting hole, taking care not to damage it during installation.

1. Install in the reverse order of removal.