2023 Mazda CX-50 SFACTORY OEM SERVICE PROCEDURE

Crankshaft Position (CKP) Sensor Removal/Installation: Notes

Replacement Part 

O-ring
Quantity: 1
Location of use: CKP sensor

Oil and Chemical Type 

Engine oil
Type: Recommended oil
CAUTION:
  • If foreign matter such as metal shaving adhere to the CKP sensor, it can cause abnormal output from the sensor because of flux turbulence, which can negatively affect the engine control. Verify that there is no foreign matter on the CKP sensor when replacing.
  • When replacing the CKP sensor with a new one, perform the CKP sensor learning value clearing procedure to clear the learning value stored in the PCM. If the stored learning value is not cleared, the engine performance may not function at its full capability. (See CKP SENSOR LEARNING VALUE CLEARING PROCEDURE .)
  1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION .)
  2. Lift up the vehicle.
  3. Remove the following parts for easier access.
    1. Front under cover No. 2 (See FRONT UNDER COVER No. 2 REMOVAL/INSTALLATION .)
    2. Front splash shield (RH) (See SPLASH SHIELD REMOVAL/INSTALLATION .)
  4. Disconnect the CKP sensor connector.
  5. Remove the CKP sensor.
    Fig 1: CKP Sensor Bolt With Torque Specification
    G12184579Courtesy of MAZDA MOTORS CORP.
  6. Install in the reverse order of removal.
  7. When replacing the CKP sensor with a new one, clear the learning value. (See CKP SENSOR LEARNING VALUE CLEARING PROCEDURE .)
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.