Important - OTC Tools Code Scanner Manual Del Usuario

IMPORTANT: You must complete all steps in Self-Test Part 1 before
proceeding to Part 2.
Verify good battery in Code Scanner
(Section 2).
1) Verify
Ignition
Key is in
OFF
Position.
2) Put Code
Scanner
HOLD/TEST
Switch in
HOLD
Position.
• Do the following also:
– For 4.9L only, depress clutch until
Step 5 (codes sent).
– For 7.3L diesel only, completely
depress throttle until Step 5 (codes
sent).
– For 2.3L turbo with octane switch,
put switch in premium position.
3) Turn Ignition Key to ON Position
but DO NOT START THE ENGINE.
4) Put Code Scanner HOLD/TEST
Switch in TEST Position.
• This starts the KOEO Self-Test.
• Testing takes anywhere from 10
seconds to one minute before codes
are sent.
• You may hear clicking sounds in the
engine compartment as relays are
being tested.
AUDIO
ON TEST
ST0
TM
OFF HOLD
5) Get Codes from the Flashing STO
Light.
NOTE: If the light does not flash, go
back and repeat SELF-TEST PART 2
starting with Step 1. If the light still
does not flash, you have a problem
which must be repaired before
proceeding. Refer to the vehicle
service manual "No Codes" trouble-
shooting chart.
• Pay no attention to the brief, rapid
blinks which occur before the regular
codes are sent.
• Count flashes to get service codes.
Code 12 looks like:
❊
FLASH (pause) FLASH FLASH
(FLASH = 1, FLASH FLASH = 2.
Put 1 and 2 together = code 12.)
Code 23 looks like:
❊❊
FLASH FLASH (pause)
FLASH FLASH FLASH
NOTE: Certain 1991 and newer vehicles
use 3 digit codes (refer to vehicle service
manual to determine whether your
system uses 2 or 3 digit codes).
These codes are sent as follows:
Code 123 looks like:
❊ ❊❊
PAUSE
FLASH (pause) FLASH FLASH (pause)
FLASH FLASH FLASH
• Two groups of codes are sent at this
time. Each group is separated by a
single flash (called a "separator
code")
13
❊❊
PAUSE
❊❊❊
PAUSE
❊❊❊
PAUSE