DTC P0012-00: Intake CMP Timing Over-Retarded: Notes

DETECTION CONDITION AND POSSIBLE CAUSE

DTC P0012:00	Intake CMP timing over-retarded
DETECTION CONDITION	The actual intake valve timing retard is the specification or more compared to the target intake valve timing for a continuous specified time with the following condition met. MONITORING CONDITIONS Engine speed: below 5,000 rpm ECT: above 60°C {140°F} Diagnostic support note This is a continuous monitor (CCM). The check engine light illuminates if the PCM detects the above malfunction condition during the first drive cycle. FREEZE FRAME DATA (Mode 2)/Snapshot data is available. The DTC is stored in the PCM memory.
FAIL-SAFE FUNCTION	Stops activation of the electric variable timing driver.
POSSIBLE CAUSE	Electric variable valve timing driver malfunction Electric variable valve timing actuator is stuck in retarded position Electric variable valve timing motor malfunction Electric variable valve timing actuator malfunction Loose timing chain or improper intake valve timing due to timing chain slippage PCM malfunction
SYSTEM WIRING DIAGRAM	-

CAUTION:

Verify the malfunction symptom according to not only the PID value but also the symptom troubleshooting.

RELATED PIDS

Monitor item (Definition)	Unit/Condition	Condition/Specification (Reference)
VT_IN_ACT	°	Displays the actual intake valve timing
VT_IN_DES	°	Displays the desired intake valve timing