Toyota Celica Supra 1986 Service And Repair Manual page 134

Fl-32 EFI SYSTEM - Troubleshooting for EFI Electronic Circuit with Volt/Ohmmeter
No. Termlnell
BAT - E1
1
+ B - e.
IG SIW -
e,
M ·REL-
e,
v
Trouble Condftion STO Vohege
No voltage 10 - 14
No voltage
Ignition sw itch ON 10 - 14
No voltage Ignition switch ON 10 - 14
No voltage
Ignition switch ON 10 - 14
AM , STOP Fuse
ecu
BAT
IG SJW
IG
Cir~it
Opening
Main Relay
No.
1
SJW
I
Fuso
l
-
'
: Battery
-
......
...,!,-
-
I
Rolo
.a
I
M· REL
+ E,
•
BAT- E1
(D
There is no YC4t606 betwMn ECU terminats BAT end E•.
{2)
Cl\eck. that there It vo1t1ge between ECU terminal BAT ei'KI
body QfOUnd.
NO OK
L - - - - - - - - -- - - -.!.••!!:•:2J•J ® Check wiring between ECU terminal e, and
bodY ground.
Voltmtttr
v
ECU
n
...
"
Clleck fuse. fusible linkt and
wiring htuness.
NO
BAD
Repair
01
repl.ct
Repair