Toyota 3F-E - Voltage at ECU Wiring Connectors

EFI SYSTEM —
Troubleshooting with Volt/Ohmmeter
FI-29
Voltage at ECU Wiring Connectors
No.
Terminals
Condition
STD Voltage
See page
BATT-E1
—
10-14 FI-30
1
IG SW - El
Ignition switch ON
10 - 14
FI-31
M-REL - El
+B (+B1) - E1
FI-32
2
IDL - E2
Ignition switch ON
Throttle valve open
4 - 6
FI-33
VC-E2
—
4-6
FI-34
VTA -E2
Throttle valve fully closed
0.1 - 1.0
Throttle valve fully open
4 - 5
3
VC-E22
Ignition switch ON
—
4-6
FI-35
VS - E22
Measuring plate fully closed
4 - 5
Measuring plate fully open
0.02 - 0.08
Idling
2-4
3,000 rpm
0.3 - 1.0
4
THA - E2
Ignition switch ON
Intake air temperature 20°C (68°F)
1 -
3 FI-36
5
THW - E2
Ignition switch ON
Coolant temperature 80°C (176°F)
0.1 -1.0 FI-37
6
No. 10
E01
-
No.20
E02
Ignition switch ON
10-14
FI-38
7
STA - El
Cranking
6 - 14
FI-39
8
ISC1
Z
- El
ISC4
Ignition switch ON
10-14
FI-40
9
IGT - El
Idling
0.7 - 1.0
FI-41
10
W - El
No trouble ("CHECK" engine warning light off) and
engine running
10 14
FI 42
ECU Terminals
No
1
HT
STJ
T
SC
I ISC
Ge
G1
-
NE
-
OX1
rHw
IGF
IGT
-
M-
REL
EG
SP FP
TH
VS
VC
BArr
IG
SW
N
o
.
HT2
El
TWS
13C
ISC
VF1
VF2
VTA IDL
Ell
0X2
E2 E22
-
4WD
STP - W
NSWSTA
Al
-
+B
+B1
F10574
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