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Home >> Mazda >> 2021 >> CX-5 Sport, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 22 (On-Board Diagnostic - Engine Control (VIN Y) (1 Of 3)) >> DTC P0011-00, P0012-00: Electric Variable Valve Timing Control System >> Details On DTCs

Details On DTCs

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DTC P0011:00, P0012:00 (PCM, VIN Y) DETECTION CONDITION AND POSSIBLE CAUSE

DESCRIPTION Electric variable valve timing control system:
  • P0011:00: Over-advanced
  • P0012:00: Over-retarded
DETECTION CONDITION Determination conditions
  • P0011:00: For the advance amount from the maximum intake valve retard position, a condition in which the actual advance amount is larger than the target value continues for a specified period of time.
  • P0012:00: For the advance amount from the maximum intake valve retard position, a condition in which the actual advance amount is smaller than the target value continues for a specified period of time.
Preconditions
  • Battery voltage: above 11 V*1
  • Engine speed: 5, 000 rpm or less*1
  • Engine coolant temperature: 20 °C {68 °F} or more*1
  • The following DTCs are not detected:
    • P0010:00, P0335:00, P0340:00
*1 : Standard can be verified by displaying PIDs using MMDS
Malfunction determination period
  • 10 s period
Drive cycle
  • 1
Self test type
  • CMDTC self test
Sensor used
  • CKP sensor
  • Intake CMP sensor
FAIL-SAFE FUNCTION
  • Not applicable
VEHICLE STATUS WHEN DTCs ARE OUTPUT
  • Illuminates check engine light.
POSSIBLE CAUSE
  • Electric variable valve timing motor/driver connectors or terminals malfunction
  • Short to ground or open circuit in electric variable valve timing relay power supply circuit
    • Short to ground in wiring harness between MAIN 200 A fuse and electric variable valve timing relay terminal D
    • MAIN 200 A fuse and/or EVVT 20 A fuse malfunction
      • Open circuit in wiring harness between battery positive terminal and electric variable valve timing relay terminal D
  • Short to ground in wiring harness between the following terminals:
    • Electric variable valve timing relay terminal C-Electric variable valve timing motor/driver terminal 2B
      • Electric variable valve timing relay terminal C-Electric variable valve timing motor/driver terminal 1C
  • Open circuit in wiring harness between the following terminals:
    • Electric variable valve timing relay terminal C-Electric variable valve timing motor/driver terminal 2B
      • Electric variable valve timing relay terminal C-Electric variable valve timing motor/driver terminal 1C
  • PCM connector or terminals malfunction
  • Electric variable valve timing relay malfunction
  • Electric variable valve timing motor malfunction
  • Electric variable valve timing actuator malfunction
    • Electric variable valve timing actuator is stuck in advanced position
      • Electric variable valve timing actuator is stuck in retarded position
  • Timing chain malfunction
    • Poor assembly of timing chain
      • Looseness or jumping
  • Mis-detection of intake CMP sensor
  • Mis-detection of CKP sensor
  • PCM malfunction