HONDA 2008 Ridgeline - Manual (Page 295)

If the indicator comes on repeatedly,
even though it may turn off as you
continue driving, have your vehicle
checked by the dealer as soon as
possible.
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 this indicator comes on
while driving, it means one
of the engine’s emissions control
systems may have a problem. Even
though you may feel no difference in
your vehicle’s performance, it can
reduce your fuel economy and cause
increased emissions. Continued
operation may cause serious damage.
If you have recently refueled your
vehicle, the indicator could come on
because of a loose or missing fuel fill
cap. You will also see a ‘‘TIGHTEN
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.
The indicator may also come on with
the ‘‘D’’ indicator.
If the battery in your vehicle has
been disconnected or gone dead,
these codes may be erased. It can
take several days of driving under
various conditions to set the codes
again.
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 five 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 ). 315
Malfunction Indicator Lamp
Readiness Codes
Emissions
Testing
T
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ing
Ca
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of
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If you keep driving with the
malf unction indicator lamp on, you can
damage your vehicle’s emissions
controls and engine. Those repairs may
not be covered by your vehicle’s
warranties.
2008 Ridgeline
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