Toyota 4-Runner 1985 Repair Manual page 200

No.
EFI SYSTEM -
Troubleshooting for EFI Electronic Circuit with Volt/Ohmmeter
FI-31
Terminals Trouble Condition STD Voltage
BATT -
El No voltage 10 - 14 V
Fusible Link Fuse EF I (15A)
r---------~·~~~~~~J-------~~~~~~~o----------------------------------oBATT
--
~
I
I
Battery
i
...L
1
CD
(2)
FI0551
ECU
FI0552
ECU
------( , Eo
1
FI0605
No voltage between ECU terminals BATT and E
1 .
Check that there is voltage between ECU terminal BATT and
body ground.
NO
!
OK
@
Check wiring between ECU terminal El and
body ground.
J
OK
~BAD
r
Try another ECU.
. ~
Repair or replace
BAD
I
Check fuse and fusible link.
I
Replace
OK
Check wiring between fuse and BAD
Repair or replace
ECU.