P1682 indicates a malfunction in the metering oil pump control circuit or the pump assembly itself. The metering oil pump regulates oil pressure for variable valve timing and other engine systems, and this code sets when the control module detects an electrical fault or performance issue with the pump circuit.
The pump motor or internal mechanical components have failed, preventing proper oil pressure regulation.
Open, shorted, or corroded wiring and connectors in the pump control circuit disrupt communication or power delivery.
The solenoid that regulates pump output is stuck, leaking, or electrically defective.
Insufficient oil or wrong viscosity prevents the pump from developing required pressure.
Internal driver circuit failure in the control module is possible but rare; verify all other causes first.
No. Control module failure is rare; the pump assembly, wiring, or oil condition are far more likely.
Yes. Insufficient oil prevents the pump from building pressure, which can trigger the code.
Yes. Loss of oil pressure control can lead to engine damage if not addressed promptly.
No. The code will return if the underlying fault is not repaired.