Toyota 4A-F Repair Manual page 84

STOP
'SA
I(:;'-I. � '
Dillgnosis System
EFI SYSTEM
CANCELLING DIAGNOSTIC CODE
Alter repair
1.
memory by the ECU must be cancelled
the luse STOP !SA !AEI. EFI !SA tATI or AM2
!AWl. located In the eflgine compartment.elay bo�. lo.
seconds or more, depending o n ambient tempe'etu,e !the
lower the temperllture, the longer the fuse must be leh
out) with the ignition switch OFF.
NOTE:
• Cancellation cen IIlso be done by removing the bantry
neglltive
systems (clock. etd will also
in
• If the diagnostiC code is not cancelled out.
ret�ined by the ECU and appear IIlong with a new code
• If
the event
be
it is naceuary to wort<. on engine component, requir·
ing removal
made
recOrded.
2. Alter caneellation, road tell the vehicle to check that
normal code is now read on lt1e check engine warning
light.
If the same diagnostic code appe�. It indicates th�t
trouble ara� has not
7 5.61
01
trouble area. the diagnostiC code retained in
(OJ
terminel. but in Ihia case. other
01
future t.ouble.
01
the battery terminal. a check must
see if a diagnostic code is has been
10
been
repaired thoroughly.
1.SA
by removing
OYt
memory
be
cancelled oul.
it will
lirst
1 0
be
I
till