Actron GM Code Scanner CP9001 - Manual (Page 78)

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9) Get a Trouble
Code from
Flashing “Anti-
Lock” Light
• All codes are two (2) digits long.
• Count flashes to get trouble
codes. Flashes start after about a
4 second delay.
– The first digit is flashed, then...
– there is a 3 second pause,
then...
– the second digit is flashed,
then...
– the anti-lock light turns ON and
stays ON. Do not count this
steady light as a “flash.”
• EXAMPLES:
Code 12 looks like:
❊
PAUSE
❊❊
FLASH (3 second pause) FLASH
FLASH
(then light stays on.)
(FLASH = 1, FLASH FLASH = 2.
Put 1 and 2 together = code 12.)
Code 23 looks like:
❊❊
PAUSE
❊❊❊
FLASH FLASH (3 second pause)
FLASH FLASH FLASH
(then light stays on.)
10)Get More Codes (if any) from
Flashing “Anti-Lock” Light
• Do this step after first code has
been flashed and anti-lock light is
ON steadily.
• Do NOT turn ignition switch off.
– Remove
Code
Scanner from
test connec-
tor. Then...
– Re-install Code Scanner into
test connector.
– The next ABS trouble code (if
TM
GM 1982 & higher - CP 9001 Ca r C om pu ter C od e R ead er
any) will be flashed in the same
manner as the first code.
• Repeat this step until all trouble
codes have been read. The ABS
computer can store up to 7 trouble
codes.
11)Turn Ignition Key
OFF
12)Remove Code
Scanner and
Re-install
Connector
Cover, if
supplied
The computer system is now back to
normal operation.
13)Refer to ABS Code Meanings on
page 77 (Teves Mark ll, Version A)
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
vehicle service manual proce-
dures for any ABS repairs!
(Manual listings on page 4.)
Erasing ABS Codes from Computer
Memory: Teves Mark II (Version A)
Erase codes from memory whenever
you complete a repair or to see if a
problem will occur again.
1) IMPORTANT! - Trouble codes
cannot be cleared until they have
been read! Refer to READING ABS
CODES, page 75.
2) Drive the vehicle at a speed of
greater than 18 MPH. Trouble
codes should automatically clear.
OF
F ON