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– Tap on
end of
exten-
sion
with a
light (4
oz.)
hammer for 15 seconds.
– DO NOT TAP SENSOR!
7) Get Service Codes From the
Flashing STO Light.
• Count flashes on the STO light. This
is done the same way as in Self-Test
Part 2. (Ignore any flashes lasting
longer than 1 second.)
Code 12 looks like:
PAUSE
FLASH (pause) FLASH FLASH
(FLASH = 1, FLASH FLASH = 2.
(Put 1 and 2 together = code 12.)
• All codes are 2 digits long.
• After all codes are sent, the whole
group is sent again just one more
time (so you can double check your
code list).
Example of code series 12 and 42:
PAUSE
FLASH (pause) FLASH FLASH
(longer pause)
FLASH FLASH FLASH FLASH (pause)
FLASH FLASH
(longer pause)
PAUSE
FLASH (pause) FLASH FLASH
(longer pause)
FLASH FLASH FLASH FLASH (pause)
FLASH FLASH
PAUSE
PAUSE
8) Turn Ignition Key to OFF Position.
9) Remove Code Scanner.
At this point you can either:
• Have your vehicle professionally
serviced. Codes indicate problems
found by the computer.
or,
• Repair the vehicle yourself using
service codes to help pinpoint the
problem. Refer to Test Results Chart.
Code definitions are listed in Section
8, "Code Meanings (MCU system)."
47
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