Instruction manual

29
HONDA
4) Access the Computer for Testing
8421
Trouble codes are “read” by noting
which LED’s are “ON” (4 LED system)
or by observing the flash pattern of a
single LED (1 LED system). These
LED’s are mounted inside the
computer. They can be seen through a
“sight window” (an opening in the
computer housing) or reflected by a
small mirror in some cases.
Remove any vehicle parts such as
kick panels or other plastic pieces
which would restrict access to the
LED sight window. Carefully turn back
the carpeting if necessary.
The computer itself may have to be
removed from its mounting location.
– Make note of wire harness position
before moving computer. Harness
should be replaced in original
position when computer remounted.
Do not disconnect any of the
wiring harness connectors which
plug into the computer. You may
lose stored trouble codes!
5) Have pencil, and paper on hand
• These are for writing down all the
codes.
This completes the vehicle preparation.
Proceed to “Reading Trouble Codes”,
page 30.