Check Engine MIL

Check Engine MIL

The CHECK ENGINE MIL (malfunction indicator lamp) will light for 5 seconds each time the ignition is switched ON to confirm that the bulb and the circuit are operating.

If the on-board diagnostic system detects an engine management fault, the CHECK ENGINE MIL will illuminate and one or more DTC(s) will be flagged by the ECM. The CHECK ENGINE MIL will remain illuminated until the fault is repaired and the ECM memory is cleared.

Only the highest priority DTC can be reported on the instrument pack display. To display the code, switch the ignition OFF; wait 5 seconds, then switch ON the ignition; do not crank the engine. On Sedan Range vehicles, press the VCM button. On XJS Range vehicles, a code is automatically displayed 5 seconds after the ignition is switched ON. If more than one code is flagged, the additional information can be accessed using JDS or PDU or with the DTC manual reset procedure.