13
• After all trouble codes have been
written down, finish testing as follows:
6) Turn ignition key OFF
7) Remove Tool from Connector and
Replace Connector’s Protective
Cover
• The engine computer is now back to
normal.
What to do with the Trouble Codes
Look up the code definitions listed in
“Toyota Code Meanings.”
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. Refer to Section 3, “Using
Codes.” Be sure to erase any trouble
codes from the computer’s memory
after repairs are completed, as
indicated below.
Erasing Trouble Codes after Repair
• Disconnect the link or remove the
indicated fuse for a minimum of 30
seconds.
–
Camry: Remove the “ECU +B” 15
amp fuse from the fuse block.
TEST RESULTS
COMMENTS
No indication on
“CHECK” engine
light
You have a problem with the diagnostic circuit
which needs repair before using the code
scanner tools. Refer to vehicle service manual.
Code 1 only
Computer does NOT find a problem. If drive
symptom persists, be sure to perform a thorough
underhood inspection first. (Refer to page 7.)
Then refer to vehicle service manual for trouble-
shooting suggestions.
Any code(s)
Computer found problems in vehicle. Refer to
“Toyota Code Meanings”, page 22.
–
Celica, & Truck: Remove the “STOP”
15 amp fuse from the fuse block.
–
Starlet: Disconnect the fusible link
(YELLOW connector) near the
positive (+) battery terminal.
–
Van: Remove the “EFI” 15 amp fuse
from the fuse block.
• All the trouble codes are now erased
from computer memory!
• Replace fuse or link. You may have to
reset the vehicle clock, radio stations,
and so on.
Important: The computer has a
“learning” ability to take care of minor
variations in engine control operation.
Whenever you erase the computer
memory, 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.
TOYOTA
Summary of Contents for Code Scanner CP9025
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