Toyota Land Cruiser 1988 Repair Manual page 172

EFI SYSTEM -Troubleshooting with Volt/ Ohmmeter Fl-41
No. Terminals Trouble Condition STD Voltage
9 IGT- E1 No voltage Idling 0.7-1.0
v
ECU
Ignition Switch
AM21 -====' -
1
I G2
I
J
To
Tachometer
Fusible (
) 0.5G
Igniter w/
g
Link
Ignition Coil I<
>I
"'';;;:;;;;JJ'
r-- ~
--r
IGF
Battery
I
-1-
.
IGT
.....
~
~
E1
~~
Fl2438
CD
There is no voltage between ECU terminals IGT and E1.
(Idling)
®
Check that there is voltage between ECU terminal IGT and
body ground. (Idling)
NO
!
OK
@
Check wiring between ECU
BAD
Repair or
terminal E1 and body ground. replace.
F12446
l
OK
Try another ECU.
Check fusible link and ignition
BAD
switch.
Repair or replace.
OK
BAD
Check distributor. (See page IG-7)
l l
Repair or replace.
F12445
OK
®
Check wiring between ECU and
BAD
battery.
Repair or replace.
OK
Check igniter. (See page IG-7)
I BAD J
Repair or replace.
I I
F10311