21
TEST RESULTS
COMMENTS
No indication on Super
Monitor Display
You have a problem with the Super Monitor Display
which needs repair before reading codes. Refer to
vehicle service manual.
E/G OK or ENG-OK
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 troubleshooting suggestions.
Any code(s)
Computer found problems in vehicle. Refer to “Toyota
Code Meanings.”, page 22.
What to do with the Trouble Codes
Look up the code definitions listed in
Section 6, “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
follows.
Erasing Trouble Codes after Repair
SECONDS
30
–
On 1985 & 1986 vehicles:
Remove the “STOP” 15 amp fuse from
the fuse block for a minimum of 30
seconds.
–
On 1987 & 1988 vehicles:
Remove the “EFI” 15 amp fuse from
the fuse block for a minimum of 30
seconds.
• All the trouble codes are now erased
from computer memory!
• Replace fuse. 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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