Toyota 3S-GE Repair Manual page 214

EG-200
ENGINE — EFI SYSTEM
No.I Terminals I Trouble I STD voltage
aI STA—E1" I Novoltage I
Condition
Cranking 6 V or more
ignition Switch
AM2 ,
ST2
ECU
W K \
ST75A
ll!
AM2£'\
30A )7,
AM2 ' g V A
(S )
0./'~o
(ST)
1.5/\ . Q , (ST)
MAIN \\ |'-I A
50A ' Q
SW
I50
.OY FL
MAIN FL
-i
Battery
STA
Starter Relay
Starter
I I E1
ti '1
I
Z? I Q
P17821
G)
ECU I STA
There is no voltage between ECU terminals STA and E1.
® (IG SW START)
'1I
tie
'.:': Y - @=' = ==5°
Voltmeter "»;——-"1 be-—
E 1
P00749
®
ECU
' or -v u ' Y ' -r ' .. v L1 '
I DDUCICICIUDUDD DUDDDD Dflnuiinciuiiuinuu
. | - - e - - - - - . --.----our --no-!-1------en,-
-1 _ _ E 1 '7 it
Ohmmeter
Voltmeter ®
Terminal 50
T Starter
5"' 15!)!'-r
'*1 i i i »
I \
l
/
F|437'l
Y
Check starter OK Check wiring between ECU terminal STA
operation. and ignition switch terminal ST1.
BAD OK BAD
Repair or replace.
Check wiring between ECU terminal E1 and body
® ground.
OK BAD
Try another ECU. Repair or replace.
Y
Check fusible links, battery, wiring BAD .
. .. . Repair or replace.
and ignition switch. E .
I OK
Check that there is voltage at terminal 50 of starter.
® (IG SW START) STD voltage: 6 - 14 V
IOK INO
Check starter' Check wiring between 1). ST2 and 'starter
relay, and 2). battery and starter terminal 50.
V05424