Due to there being many potential faults, diagnostic equipment is required to read fault codes. Some of the more frequent faults include broken gas cap, faulty oxygen sensor or mass airflow sensor. On some models, the engine fault light illuminates due to a malfunction in the DPF system. The light may also illuminate on certain versions of the Hilux due to a malfunction in the electronic automatic transmission control system or on diesel versions, where the boost pressure in the turbocharger is abnormally high. It indicates a malfunction in the emission control system or emission control system or electronic engine control system. The Toyota Hilux engine malfunction warning light (often called the check engine warning light) has many potential faults associated with it. Note: Stopping on a steep slope can cause the oil pressure light to come on. If you have added engine oil, only continue driving if the light has gone out. Engine lubrication has malfunctioned and severe damage will result in running the engine. If levels are normal, do not restart the engine and arrange for recovery. If the light comes on while driving, immediately stop the vehicle and switch off the engine. The Toyota Hilux oil pressure warning light is not generally an indication of low oil level, though low engine oil level can cause the light to illuminate. The Toyota Hilux rear differential lock warning light rapidly flashes to indicate a malfunction in the rear differential lock system. The rear differential lock system is ideal to help prevent the rear wheels from spinning on a slippery / muddy surface. Have vehicle diagnostics to read fault codes. It indicates a malfunction in the electronic engine control system, the electronic throttle control system, or the Brake Override System. The spanner / wrench with exclamation mark is a required service fault warning light. For further information, see red engine coolant warning light on or flashing. Do not continue driving if warning light remains on. Check coolant levels, cooling fans and belts are at acceptable levels and/or are working. Stop the vehicle immediately and allow engine to cool. If the warning light goes from flashing to constant, it means the temperature has increased. If the temperature warning light begins flashing or the temperature gauge increases, it means the engine is beginning to overheat. High Coolant Temperature Warning Light / Gauge In this instance, only drive the vehicle a low speeds to a repair workshop if the vehicle has working brakes.
It may also indicate low negative pressure in the vacuum tank on diesel engine versions on Hilux. If the parking brake is properly released and fluid levels are within acceptable limits, it indicates a malfunction with the vehicle braking system. Secondly, it may indicate low levels of brake fluid. First check that the parking brake has been properly released. This red warning light indicates a fault with the Toyota Hilux brake system. See why is my car battery warning light on for further information. Check battery wiring / connections, alternator, drive belts and battery for malfunction. Due to a malfunction in the vehicle charging system, immediately turn off any vehicle utilities that consume electricity and make your way to the nearest vehicle repair workshop. High probability of engine stall once battery charge depleted. If Toyota Hilux battery warning light comes on while driving, it means the engine is running on battery power alone due to the alternator not charging it.
Have airbag SRS system serviced by a qualified Toyota workshop as soon as possible. The front passenger occupant classification system.The warning light indicates a malfunction in: If this light remains on while driving or fails to come on at ignition, it means there’s a fault with the Toyota Hilux SRS airbag system.
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