Toyota 3S-GE Repair Manual page 217

ENGINE —- EFI SYSTEM EG-203
No. 7
Terminals
Trouble
Condition I sto voltage
11
W — E1 No voltage
No trouble ("CHECK" engine warning light offl and
engine running.
I 9—14V
To .
Ignition Switch (I61) 4 o'\-0
GAUGE
10A ISTI
7.5A ISWI
. fi--Ii'
O II D W
ECU
/\ V in
i
Combination Meter I )E1
CHECK" Engine
Warning Light
FID728
Voltmeter
(D
(D There is no voltage between ECU terminals W and E1.
lldlingl
ECU W_
E
iii 4
Y
,, °,,;.,.,.,;., Check that there is voltage between ECU terminal W and body
" ' ' I " ® ground.
NO I OK
El Check wiring between ECU terminal E1 and body
@ ground.
P007 45
OK I BAD
ECU W
®
I Y
vohmeter Check GAUGE IUSG (10A or 7.5A) and "CHECK"
II OKIII I
4 1
/
P00744
Try another ECU. I Repair or replace.
engine warning light.
BAD
OhmmeterI —
E1
ECU
®
I-1 v u -v Er-r uir w-
l DDDDDDDDDDD ouuoou upon "iuuauooun =
'_=- -r-r---_--r.,--_ ---A... 5--A-i_l,
Vivi"
P00739
Repair or replace
I Fuse blows again
Check wiring between ECU terminal BAD .
W and fusel Repair or replace.
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