Toyota 4A-F, Руководство по ремонту

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R-22
to
EI
"-,
DIAGNOSIS SYSTEM
DESCRIPTION
The
ECU
contaif'ls 0 buill_if'l self-dia9f'lOsi. aYltem by
which troubles with the ef'lgiM .igmill f'letwonr.
81"
detected 8f'ld a che<:k engif'le wemif'l9 light Of'l the if'lltlU­
maf'l! pef'lel flashes.
By af'lalyzing various sigmll. as show" if'l the Ister table
(See page fl-26 or 261 the ECU detects syltem mlllt.,lIlt·
tiof'ls which are related to the various operlllif'lg pafamt!11If
5ensors or actuator. The ECU storea tha fllilure code
associated with the dete<:ted failure uf'ltil the diagnosis
Iystem is clellred by removing the fuse stop
15A (AE), EFl
15A
tAT)
0'
AM2 7.5A IAWl with the igniliof'l switch
OFF.
The check mgi'" wlIl"f1ifIQ light
0"
the inllrumef'll pIIfIfII
If'lfOfms the driver that a malfunction has beef'l detected
The light goes out automatically wheo the mellul'IC t ioll
has
beer!
cleared.
CHECK ENGINE WARNING LIGHT CHECK
1 .
The Check e"9ine wal"f1irog light will come on whef'l thl
igf'lltiof'l switch is pleo::ed at
ON
and the engif'le is not
roo­
f'ling.
2. Whef'l the ''''9'f'le is stMti!ld. thl chllCk If'lgif'le wllmirog lig�.l
should go oul.
If the light remaif'lS Of'l. the diagf'lo,i, system has detected
a malfuf'lClion or abf'lormality If'l the syslem
OUTPUT OF DIAGNOSTIC CODES
To obtain 9f1 output of diagnostic codes. proceed as follow:
1
If'litial conditions
(al
Batte<y voltage
1 1
voltl or more
hI
Throttle valve fullv cloud (throttle poliliof'l sensor
!
tOl points closedl
lei T.ansmissiof'l in f'leutlal posiTion
lei) Accessories switched
OFf
lei Engine aT reach normal operating tempe.sture
2. Tum the ignition SWilCh to ON. 00 not start the engilV!
3. Using a servic8 wi'e, short termif'l,ls T and El of the chea
Conf'le<:tor.
LOCATION: See p!lge FI-89
4.
Read the diagnosTic code
n
indicated by the
number of
flashes of The check engif'l' wamif'lg light.