Obd SATURN ION 2005 Owners Manual

Engine Coolant Temperature Gage
This gage on the left
measures the temperature
of the vehicle’s engine
coolant. If the pointer
moves into the shaded
area, your engine is
too hot!
If the engine coolant temperature reaches 253° (123°C)
the CHK GAGE message will appear and a chime
will sound to alert you to the engine coolant temperature
gage. SeeMessage Center on page 3-39. If you have
been operating your vehicle under normal driving
conditions, you should pull off the road and stop your
vehicle, be sure the air conditioning is off, let the engine
idle for a few minutes, then turn off the engine.
If your engine control system detects a failure in the
engine coolant temperature circuit, the malfunction
indicator lamp (service engine soon) light will come on.
The coolant gage may read all the way hot or cold.The engine cooling fan will be turned on to protect the
engine and transmission. SeeMalfunction Indicator
Lamp on page 3-33for more information.
Malfunction Indicator Lamp
Check Engine Light
Your vehicle is equipped
with a computer which
monitors operation of the
fuel, ignition, and emission
control systems.
This system is called OBD II (On-Board
Diagnostics-Second Generation) and is intended to
assure that emissions are at acceptable levels for the
life of the vehicle, helping to produce a cleaner
environment. The check engine light comes on to
indicate that there is a problem and service is required.
Malfunctions often will be indicated by the system
before any problem is apparent. This may prevent more
serious damage to your vehicle. This system is also
designed to assist your service technician in correctly
diagnosing any malfunction.
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Your vehicle will not pass this inspection if the OBD
(on-board diagnostic) system determines that critical
emission control systems have not been completely
diagnosed by the system. The vehicle would be
considered not ready for inspection. This can happen if
you have recently replaced your battery or if your
battery has run down. The diagnostic system is
designed to evaluate critical emission control systems
during normal driving. This may take several days
of routine driving. If you have done this and your vehicle
still does not pass the inspection for lack of OBD
system readiness, your retailer can prepare the vehicle
for inspection.
Oil Pressure Light
If you have a low engine
oil pressure problem, this
light will stay on after
you start your engine, or
come on when you
are driving. This indicates
that your engine is not
receiving enough oil.The engine could be low on oil, or could have some
other oil problem. Have it xed immediately.
The oil light may also come on when the ignition is on
but the engine is not running, the light will come on as a
test to show you it is working, but the light will go out
when you turn the ignition to START. If it doesn’t come
on with the ignition on, you may have a problem with
the fuse or bulb. Have it xed right away.
{CAUTION:
Do not keep driving if the oil pressure is low. If
you do, your engine can become so hot that it
catches re. You or others could be burned.
Check your oil as soon as possible and have
your vehicle serviced.
Notice:Lack of proper engine oil maintenance may
damage the engine. The repairs would not be
covered by your warranty. Always follow the
maintenance schedule in this manual for changing
engine oil.
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