Actron GM Code Scanner CP9001 - Manual (Page 15)

15
T E S T
ABS ENGINE
–Open the in-line fuse holder going
to the positive battery terminal, OR
–Disconnect negative battery
terminal – but this will also erase
other items too, such as digital
clock settings and preset digital
radio tuning.
• All the trouble codes are now
erased from computer memory!
• Wait thirty (30)
seconds.
• Reconnect power
to the computer.
IMPORTANT: The
computer has a “learning” ability to
take care of minor variations in engine
control operation. Whenever you erase
the computer memory by disconnect-
ing power, the computer has to
“relearn” various things. Vehicle
performance may be noticeably
different until it “relearns.” This
temporary situation is normal. The
“learning” process takes place during
warm engine driving.
SATURN
Use the GM method, or proceed as
follows:
• Observe all safety precautions. (See
page 2.)
Warning: Stay away from the
engine cooling fan. It may turn on
during this procedure.
• Turn ignition key ON, but DO NOT
START THE
ENGINE.
• Put TEST switch
on ENGINE.
• Plug and
unplug the Code
Scanner
into the
test
connector
3 times
within 5
seconds.
• All the trouble codes are now
erased from computer memory!
• Turn ignition key OFF.
• Remove
Code
Scanner and
re-install
connector
cover, if
supplied.
NOTE:
• The engine control computer is
usually called ECM (Engine Control
Module) or PCM (Powertrain Control
Module) in the vehicle service
manuals.
• Information flags and “Intermittent”
codes may not by erased using this
procedure. The presence of these
codes will not cause any driveability
or future self-diagnostics problems.
TM
GM 1982 & higher - CP 9001
Car Computer Code Reader
SECONDS
30