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
r
Summary of Contents for 3F-E
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