Code Definition

P0298 — Engine Oil Temperature Condition

System: Powertrain  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About P0298

P0298 is a generic (obd-ii standard) powertrain diagnostic trouble code. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

Because P0298 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The PCM has detected engine oil temperature exceeding a safe operating temperature.
Conditions to set this code may be mechanical or electrical.
Engine oil should be replaced after the fault has been rectified.
Engine oil temperature sensors are generally negative coefficient thermistors which decrease circuit resistance as oil temperature increases.

Quick Facts