Actron GM Code Scanner CP9001 - Manual (Page 88)

88
OF
F ON
Code 3 looks like:
starts over pause
SHORT
Code 3
SHORT
FLASH
L O N G
FLASH
❊ ❊
FLASH
❊
Code 5 looks like:
starts over pause
SHORT
Code 5
SHORT
FLASH
SHORT SHORT L O N G
FLASH
❊ ❊
FLASH
❊
FLASH
❊
FLASH
❊
• The same code is flashed over
and over again. Note that the long
flash helps you tell when the code
is being repeated.
• Important: The code may be
flashed incorrectly the first time.
The code will be flashed correctly
the rest of the time. Count the flash
sequences a few times to verify
the code.
• Code flashing continues until the
ignition key is turned OFF or the
Code Scanner is unplugged.
8) Turn Ignition Key
OFF
9) Remove Code
Scanner and
Re-install
Connector
Cover, if
supplied
The computer system is now back
to normal operation.
10)Refer to ABS Code Meanings on
page 87 (Kelsey-Hayes RWAL)
This completes the code reading
procedure.
At this point you can either:
• Have your vehicle professionally
serviced. Trouble codes indicate
problems found by the computer.
or,
• Repair the vehicle yourself using
trouble codes to help pinpoint the
problem.
IMPORTANT: Always follow
OF
F ON
vehicle service manual proce-
dures for any ABS repairs!
(Manual listings on page 4.)
NOTE (multiple trouble code storage):
This ABS system is only capable of
displaying one code at a time. Repair
the failure which generated the
displayed trouble code, and then
repeat the READING ABS CODES
procedure to see if any more codes
are stored. Continue repeating the
procedure until all codes are dis-
played, diagnosed, and repaired.
Erasing ABS Codes from Computer
Memory: Kelsey-Hayes RWAL
Erase codes from memory when you
complete all repairs or to see if a
problem will occur again.
Proceed as follows:
1) Turn the ignition
key to the OFF
position.
2) Remove the indicated fuse from
the fuse block and wait at least 10
seconds.
• 1988–93 C & K Trucks:
Remove the STOP/HAZ fuse.
• 1989–92 Astro/Safari:
Remove the HORN/DM fuse.
• 1989 S Series Trucks:
Remove the ECM B fuse.
• 1990–92 G Series RWD Vans:
Remove the TAIL LPS fuse.
• 1990–91 R & V Series (Suburbans
etc.):
Remove the STOP/HAZ fuse.
• 1990–93 S & T Series Trucks:
Remove the ECM B fuse.
3) Replace fuse. Trouble codes are
now erased from computer memory!