Malfunction Indicator Light (MIL)

Discovery Series I models, are equipped with an Amber CHECK ENGINE MIL indicator and an Amber SERVICE ENGINE maintenance reminder light. Discovery Series II and Range Rover models, are equipped with an Amber SERVICE ENGINE SOON MIL indicator. On all models, as a bulb check, MIL indicators will illuminate when ignition switch is turned to ON position and go out when engine starts. If ECM detects an engine operation or emissions system problem, MIL indicator will be illuminated or flash, and a corresponding DTC will be stored in ECM memory. Not all DTCs will illuminate MIL. If MIL is on and no DTCs are in memory, problem may be intermittent. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES article.

At specified intervals, SERVICE ENGINE or SERVICE ENGINE SOON indicator will illuminate. When indicator illuminates a specified California and/or Federal emission system maintenance service is required. After emission systems check is completed, SERVICE ENGINE light must be reset. See RESETTING EMISSION MAINTENANCE REMINDER LIGHT  .