Toyota Land Cruiser 1988 Repair Manual page 165

Fl-34
•·.:..:,
EFI SYSTEM -Troubleshooting with Volt/Ohmmeter
CD •
vc-
E2
F10325
CID
vc
'VTA
IDL
E2
Fl2431
CD
There is no voltage between ECU terminals VC and E2.
(IG S/W ON}
~
Check that there is voltage between ECU terminal
+
B
( +
B1) and body ground. (IG S/W ON)
~OK ~NO
CID
Check throttle position sensor. Refer to No. 1.
(See page Fl-68) (See page Fl-30)
~BAD
l
OK
Repair or replace.
Check wiring between ECU and
throttle position sensor.
~OK
!
BAD
Try another ECU.
Repair or replace
wiring.
CD •
VTA- E2
F11268
FI0325
@
mvc
I II~VTA
~IDL
~E2
F12431
CD
THere is no specified voltage at ECU terminals VTA and E2.
(IG S/W ON)
!
®Check that there is voltage between ECU terminal VC and
E2. (IG S/W ON)
t
NO
OK
Refer to VC - E2
trouble section.
l
OK
BAD
@
Check throttle position sensor.
L
Repair or replace.
l
OK
BAD
Check wiring between ECU and
Repair or replace.
throttle position sensor.
!
OK
Try another ECU.