ENGINE DIAGNOSTIC TROUBLE CODES (DTCs)

Engine diagnostic trouble codes are displayed in the instrument display panel.

Stored and active diagnostic trouble codes are displayed as a two-part code: Suspect Parameter Number (SPN) and Failure Mode Identifier (FMI), as shown on the tables on this and the following pages.

The first part is a Suspect Parameter Number (SPN) followed by a Failure Mode Identifier (FMI). To determine the exact type of failure, both parts (SPN and FMI) of the code are needed.

The SPN indentifies the system or the component that has the failure; for example, SPN 000110 indicates a failure in the engine coolant temperature circuit.

The FMI indentifies the type of failure that has occurred; for example, FMI 03 indicates a value above normal. Combining SPN 000110 with FMI 03 means the engine coolant temperature input voltage is too high.

Always contact your servicing engine dealer for help in correcting the diagnostic trouble codes that are displayed for the engine.

The fault codes listed in the following table are in ascending order.

NOTE: Not all of these codes are used on all engine applications.

Spnfmierror Description

274EGR Valve Position Circuit - Voltage Below Normal

1 Sensor Circuit - Voltage Above Normal

Oil Rifle Pressure 1 Sensor Circuit - Voltage Below Normal

Oil Rifle Pressure 1 Sensor Circuit - Below Normal Range - Moderately Severe

Oil Rifle Pressure 1 Sensor Circuit - Below Normal Range - Most Severe

Oil Rifle Pressure 1 Sensor Circuit - Date Erratic, Intermittent or Incorrect"