HONDA 00X31-S9V-6502 - Manual (Page 289)

To check if they are set, turn the
ignition switch to the ON (II)
position without starting the engine.
The malfunction indicator lamp will
come on for 20 seconds. If it then
goes off, the readiness codes are set.
If it blinks 5 times, the readiness
codes are not set. If possible, do not
take your vehicle for a state
emissions test until the readiness
codes are set. Refer to
for more information (see
page ).
If this indicator comes on
while driving, it means one
of the engine’s emission control
systems may have a problem. Even
though you may feel no difference in
your vehicle’s performance,
continued operation may cause
serious damage.
If the malfunction indicator lamp
comes on along with the ‘‘D’’
indicator, there is a problem in the
automatic transmission control
system.
Your vehicle has certain ‘‘readiness
codes’’ that are part of the on-board
diagnostics for the emissions
systems. In some states, part of the
emissions testing is to make sure
these codes are set. If they are not
set, the test cannot be completed.
If you have recently refueled your
vehicle, the indicator coming on
could be due to a loose or missing
fuel fill cap. You will also see a
‘‘CHECK FUEL CAP’’ message on
the information display. Tighten the
cap until it clicks at least once.
Tightening the cap will not turn the
indicator off immediately; it can take
several days of normal driving.
If the indicator comes on repeatedly,
even though it may turn off as you
continue driving, have your vehicle
checked by your dealer as soon as
possible.
If the battery in your vehicle has
been disconnected or gone dead,
these codes may be erased. It takes
several days of driving under various
conditions to set the codes again.
305
Emissions
Testing
Readiness Codes
Malfunction Indicator Lamp
T
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If you keep driving with the
malf unction indicator lamp on, you can
damage your vehicle’s emissions
controls and the engine. Those repairs
may not be covered by your vehicle’s
warranties.