Toyota 3S-GE Repair Manual page 215

ENGINE — EFI SYSTEM
EG-201
No.I Terminals I Trouble I Condition STD voltage
9I IGT-E1 I Novoltage I
Idling
Pulse generation
AM2 30A '
\\
0
MAIN 60A
\\ MAIN FL
-i
Battery
Ignition Switch
Ignition Coil
AM2: I62
§ (ST)
Q " e 5 U)
I '
I -
' O 0' I
(SW) .
n
__,\_,
lgniter
ignition Main
Relay
(SW)
To Tachometer
_:Ii—(>E1 I
ECU
JIGT
>IGF
T P1782O
ECU
i (D
UUUDUUUUUUCI DU
U0 UDDEIDLIUU DUI]
_ fli-
:3
mu run as I
J
élm
iii
-v
noun i:i ciuuoa
ouou El ociuou r
P17778
+
0000
Voltmeter I
I/GT W
or l
_ I
I Check distributor.
ECU
®
. . . . M C
DDIJIJEIDEIEIEIOIJ':ii:iuoun
non EIDDEIDDDIJ gqurginq
_ t " I
I 1
DIIIDD CIDDUDUUIJD
DEICIEI II DODEIDCIUDD
I
. %
/ //\
P17782
ECU
®
cionuuuuunuuuuouoci :iciociu'iui:inuuuuui:it
_- . - . - . . . - - . . . . . . . . . ., . . . . . . , . . . . . . . . . .1 5.
Ohmmeter "Q"i"_"'5"' "
E1 W afi-
/
ii
P007 39
I O) (Idling)
There is no voltage between ECU terminals IGT and E1.
ound fldhngl
I. Z. " " " Y
Voltmeter -;Ii——-—'- ' i ' ' Check that there is voltage between ECU terminal IGT and body
E1lGT ll ® gr - ' '
NO I OK
Check wiring between ECU BAD Repair or
terminal E1 and body ground. replace.
Ioi<
I Try another ECU.
Y
Check fusible links and ignition
switch.
BAD
——-—> Repair or replace.
OK
(See page IG-12)
BAD
:_-> Repair or replace.
Ioi<
Check wiring between ECU and
battery.
BAD
-—_> Repair or replace.
_ _ IOK
Check igniter. (See page IG-13)
BAD
F?-I Repair or replace.
VO5425