DTC P0012:00: Notes

DTC P0012:00	CMP timing over-retarded
DETECTION CONDITION	The actual valve timing is over-retarded by 16 ° from the target valve timing for specified period when the OCV system control is within the feedback range. Diagnostic support note This is a continuous monitor (CCM). The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM. PENDING CODE is available if the PCM detects the above malfunction condition during first drive cycle. FREEZE FRAME DATA (Mode 2)/Snapshot data is available. The DTC is stored in the PCM memory.
POSSIBLE CAUSE	Low engine oil pressure Loose timing chain or improper valve timing due to timing chain slippage OCV malfunction Spool valve in OCV is stuck in retard position Variable valve timing actuator is stuck in retard position Following engine oil runners are clogged or have leakage: Between oil pressure switch and OCV Between OCV and variable valve timing actuator In variable valve timing actuator PCM malfunction

DTC P0012:00

CMP timing over-retarded

DETECTION CONDITION

The actual valve timing is over-retarded by 16 ° from the target valve timing for specified period when the OCV system control is within the feedback range.
Diagnostic support note
This is a continuous monitor (CCM).
The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
PENDING CODE is available if the PCM detects the above malfunction condition during first drive cycle.
FREEZE FRAME DATA (Mode 2)/Snapshot data is available.
The DTC is stored in the PCM memory.

POSSIBLE CAUSE

Low engine oil pressure
Loose timing chain or improper valve timing due to timing chain slippage
OCV malfunction
- Spool valve in OCV is stuck in retard position
Variable valve timing actuator is stuck in retard position
Following engine oil runners are clogged or have leakage:
- Between oil pressure switch and OCV
- Between OCV and variable valve timing actuator
- In variable valve timing actuator
PCM malfunction