Toyota Land Cruiser 1988 Repair Manual page 160

EFI SYSTEM -Troubleshooting with Volt/ Ohmmeter Fl-29
Voltage at ECU Wiring Connectors
No. Terminals
Condition STD Voltage See page
8ATI- E1 10-14
Fl-30
IGS/W-E1
1
FI-31
M-REL- E1 Ignition S/W ON 10-14
+
8 (
+
81)- E1 FI-32
IDL- E2 Throttle valve open 4-6
Fl-33
VC- E2
-
4-6
2
Ignition S/W ON
VTA -E2 Throttle valve fully closed 0.1 -1.0 FI-34
Throttle valve fully open 4-5
VC- E22
-
4-6
Ignition S/W ON
Measuring plate fully closed
4
5
3 Measuring plate fully open
VS- E22
0.02-0.08 FI-35
Idling
2-4
3,000 rpm 0.3-1.0
4
THA- E2
IgnitionS/WON Intake air temperature 20"C (68"F) 1-3 FI-36
5 THW- E2 Ignition S/W ON Coolant temperature 80"C (176"F) 0.1 -1.0 Fl-37
No. 10 E01
6
-
IgnitionS/WON 9-14 Fl-38
No. 20 E02
7 STA- E1 Cranking 6-14 Fl-39
ISC1
8
I
- E1 IgnitionS/WON
9-14 Fl-40
ISC4
9 IGT- E1 Idling 0.7 -1.0 Fl-41
10 W- E1
No trouble ("CHECK" engine warning light off) and
8-14 Fl-42
engine running
11 A/C- E1 Air conditioning ON 10-14 Fl-43
ECU Terminals
...........
I I
..___,
1
.........
E01 No. HT1 STJ
T
ISC ISC G8 G1
NE THG OX1
THW
IGF IGT
M-
EGR SPD FPU THA
vs vc
BATT
IG
10
1
2 REL SIW
E02 No. HT2
E1 TWS
ISC ISC VF1 VF2 VTA IDL E11 OX2 E2
E22
4WD
STP A/C
w
NS\1 STA AI
+B +81
20
3 4
*
California vehicles only
FI0574