CM870 and ISX Engines – FAULT CODE 224

Centinel™ Oil Control Valve Circuit – Shorted High


Fault Code: 224
PID: S085
SPN: 1265
FMI: 3/3
LAMP: Amber

Centinel™ oil control valve circuit – shorted high. Open circuit or high signal voltage detected at Centinel™ oil control valve circuit.

None on performance. Centinel™ system deactivated.

Centinel™ Oil Control Valve Circuit

Circuit Description

The Centinel™ oil control valve is controlled by the ECM. The ECM sends a voltage signal to the valve which diverts a preset amount of engine oil into the fuel system to be burned.

Component Location

The Centinel™ oil control valve is mounted on the intake side of the engine below and towards the rear of the air compressor. Refer to Procedure 100-002 for a detailed component location view.

Shop Talk

The Centinel™ oil control valve, turbocharger control valve, and turbocharger control shutoff valve share the same return wire in the engine harness. If Fault Codes 224, 2355, and 2277 are all active, check the return ground terminal for a faulty ground connection.

Possible causes for this fault include:

  • Open circuit in the engine harness, connectors, or Centinel™ oil control valve.
  • Signal circuit shorted to a voltage source in the engine harness.

Refer to Troubleshooting Fault Code t05-224

Last Modified:  07-Oct-2010