Toyota Land Cruiser 1988 Repair Manual page 164

No.
Terminals
IDL- E2
VC-E2
2
VTA-E2
EFI SYSTEM- Troubleshooting with Volt/Ohmmeter Fl-33
Trouble Condition
STD Voltage
Throttle valve open 4-6V
Ignition
-
4-6V
No voltage
switch ON
Throttle valve fully closed
0.1 -1.0
v
Throttle valve fully open 4-5V
ECU
Throttle Position Sensor
+B
DE2
( + B1)
E2
(
~ ~
\IDL
IDL
" IVTA
vvc
VTA
vc
....--
E1
-.-
F1136E
CD •
IDL- E2
®
~[vc
i11~VTA
i
OJJf.l D L
d~E2
F12431
CD
There is no voltage between ECU terminals IDL and E2.
(IG S/W ON) (Throttle valve open)
®Check that there is voltage between ECU terminal + B
( + B1) and body ground. (IG S/W ON)
NO
i
OK
Check wiring between ECU terminal E1 and body
ground.
l
OK
BAD
Try another ECU.
I
I
Replace or repair.
BAD
I
Refer to No. 1.
I
-t
Replace or repair.
OK
@
Check throttle position sensor.
l
BAD
BAD
!
OK
Replace or repair throt· Check wiring between ECU and
tie position sensor. throttle position sensor.
10K
Try another ECU.