This code indicates the engine control module detects the intake camshaft timing on bank 1 is more retarded than the commanded position. It typically points to a restriction in oil flow or a mechanical failure within the variable valve timing system. Immediate attention is recommended to prevent potential engine performance issues.
Insufficient hydraulic pressure prevents the variable valve timing actuator from adjusting camshaft position correctly.
Sludge and contaminants can clog the solenoid filter screen or restrict oil flow to the phaser.
The oil control valve may stick mechanically or fail electrically, stopping timing adjustments.
Internal wear or damage within the actuator can prevent it from moving to the advanced position.
Worn timing components create slack that disrupts the correlation between crankshaft and camshaft positions.
Corrosion or breaks in the harness connected to the timing solenoid can interrupt control signals.
The definition is universal; the diagnostics are engine-specific. Open your vehicle for the codes documented for it:
No, PCM failure is extremely rare for this code; oil system and timing components are the primary suspects.
Yes, sludge can block the small passages required for the variable valve timing system to function.
While possible, prolonged driving may lead to poor performance or further damage to timing components.
No, the underlying mechanical or hydraulic issue must be resolved to prevent the code from returning.