HONDA 2001 Accord Sedan - Owner's Manual - Manual (Page 315)

Malfunction Indicator Lamp
Readiness Codes
Your car 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 your car's battery has been
disconnected or gone dead, these
codes are erased. It takes several
days of driving under various
conditions to set the codes again.
If possible, do not take your car for a
state emissions test until the
readiness codes are set. See State
Emissions Testing on page 336 .
(For V6 and L4-ULEV)
To check if they are set, turn the
ignition ON (II), but do not start
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. See State
Emissions Testing on pages 301 and
302 .
Taking Care of the Unexpected
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