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Home >> Mazda >> 2024 >> CX-30 Preferred >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (On-Board Diagnostic - Engine Control (VIN Y) (3 Of 6)) >> DTC P0340-00: Intake CMP Sensor System: Circuit Malfunction

DTC P0340-00: Intake CMP Sensor System: Circuit Malfunction

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P0340-00: (PCM - VIN Y) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location Intake CMP sensor system: Circuit malfunction
Detection condition
  • The intake camshaft position sensor input signal pattern received during specified rotation of the crankshaft is incorrect.
Fail-safe
  • Sets the electric variable valve timing control to the maximum cam retard mode.
  • Inhibits traction control.
Possible cause
  1. Malfunction in wiring harness (including connector/terminal) between main relay and intake CMP sensor (see CIRCUIT INSPECTION .) (see CLEARING DTC .)
  2. Malfunction in wiring harness (including connector/terminal) between intake CMP sensor and PCM (see CIRCUIT INSPECTION .) (see CLEARING DTC .)
  3. Intake CMP sensor malfunction (Refer to CAMSHAFT POSITION (CMP) SENSOR INSPECTION (VIN Y) in the service information.)
  4. Dirt on intake CKP sensor detection area
  5. Intake CMP sensor pulse wheel malfunction
  6. Damage on intake CMP sensor detection area
  7. Loose timing chain or improper valve timing (Refer to TIMING CHAIN REMOVAL/INSTALLATION (VIN Y) in the service information.)
  8. PCM malfunction (Refer to applicable PCM REMOVAL/INSTALLATION (VIN Y) in the service information.)
Repeatability verification procedure
  1. Clear the DTC recorded in the memory. (see CLEARING DTC .)
  2. Perform the KOER self test. (See DTC INSPECTION .)
G16378205Courtesy of MAZDA MOTORS CORP.
1 Battery
2 Main relay
3 Intake CMP sensor
4 PCM
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