GOOGLE the code. Should get lots of hits.
example, GOOGLE search on... honda crv code p0416
That's how I look up codes for other vehicles.
But, it being an '02, is it realy blinking a code? Or is it just blinking a
bunch of time meaning it's time for an oil change?
Here is Honda's official list as of 2003.
It can't. The MIL either is on or it is off. Unless your friend is shorting
the Service Check connector to make the MIL flash...
As the other posters, I too wonder if your friend is mistaking the
"Maintenance Required" indicator for the MIL. If so:
If you just turn the key on and sit and watch it will flash readiness
codes , which indicate various systems are ready to run tests or not.
If it flashes while running it indicates a catalyst deteriorating
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