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Getting Started:
Before you use Scan Tool on the vehicle, please ensure that mechanical problems such as low oil level, damaged hoses, wiring or electrical connections are fixed FIRST. They may cause a fault code to set.
The following Areas need to be checked before starting any test:
¾The levels of engine oil, power steering fluid, transmission fluid (if auto transmission), engine coolant and other fluids must be at proper level. Top up if necessary.
¾Check the condition of air hoses and the air filter must be cleaned. Replace if necessary.
¾Make sure the timing belts are in good condition and properly tensioned.
¾Make sure the spark plugs are cleaned and in good condition. Check for loose, damaged, disconnected or missing plug cables.
¾Make sure that all mechanical linkages to the engine sensors (throttle, gearshift position, transmission, etc) are secure and properly connected. Refer to Service Manuals for locations.
¾Check all electrical wirings and harnesses for proper connections and condition of its insulation.
¾Check all rubber hoses (radiator) and steel hoses (vacuum and fuel) for leaks, cracks, blockage or other damages.
¾Make sure the engine is mechanically sound. Do a compression check, engine vacuum check, timing check, etc.
¾Always refer to the manufacturer’s Service Manual
if you are not sure of the repair procedures.