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HOMESERVICE MANUALSMAZDA20086 S SPORT, 4D HATCHBACK, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 17 (ON-BOARD DIAGNOSTIC (ENGINE CONTROL SYSTEM L3) (2 OF 5))DTC P0012 [L3]NOTES
2008 Mazda 6 s Sport, 4D Hatchback, Standard

DTC P0012 [L3]: Notes

2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Notes
WARNING: This page is about a different variant/trim than selected.
DTC P0012 [L3] DETECTION CONDITION AND POSSIBLE CAUSES

DTC P0012 CMP Timing over-retarded
DETECTION CONDITION  California emission regulation applicable ATX model 
  • Actual valve timing is over-retarded by 10  ° (when the following conditions are met) from target valve timing for 5 s  when the OCV system control is within feedback range.

    MONITORING CONDITION 

    • Engine coolant temperature is above 20 °C {68 °F}  .

Diagnostic support note 
  • This is a continuous monitor (CCM).
  • MIL illuminates if PCM detects above malfunction condition in two consecutive drive cycles or in one drive cycle while DTC for the same malfunction has been stored in PCM.
  • PENDING CODE is available if PCM detects the above malfunction condition during first drive cycle.
  • FREEZE FRAME DATA is available.
  • DTC is stored in the PCM memory.
Except for California emission regulation applicable ATX model 
  • Actual valve timing is over-retarded by 10  ° (when the following conditions are met) from target valve timing for 5 s  when the OCV system control is within feedback range.

    MONITORING CONDITION 

    • Engine speed is below 4, 000 RPM. 
    • Engine coolant temperature is above 70-110 °C {158-230 °F}. 

Diagnostic support note 
  • This is a continuous monitor (CCM).
  • MIL illuminates if PCM detects above malfunction condition in two consecutive drive cycles or in one drive cycle while DTC for the same malfunction has been stored in PCM.
  • PENDING CODE is available if PCM detects the above malfunction condition during first drive cycle.
  • FREEZE FRAME DATA is available.
  • DTC is stored in the PCM memory.
POSSIBLE CAUSE 
  • OCV (oil control valve) malfunction
  • Low engine oil pressure
  • Spool valve in OCV (oil control valve) is stuck in retard position.
  • Variable valve timing actuator is stuck in retard position.
  • Following oil runners are clogged or have leakage.

    Oil runners 

    • Between oil pressure switch and OCV (oil control valve)
    • Between OCV (oil control valve) and variable valve timing actuator
    • In variable valve timing actuator
  • Loose timing chain or improper valve timing due to timing chain slippage
  • PCM malfunction
RENDER: 1.0x

NO RELATED

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