EFI SYSTEM — Electronic Control System
FI-79
2.
INSPECT RESISTANCE OF ECU
ECU
NOTICE:
• Do not touch the ECU terminals.
0
0
• The tester probe should be inserted into the wiring
DOD
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Ohmmeter
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connector from the wiring side.
Check the resistance between each terminal of the wiring
connectors.
• Disconnect the connectors from the ECU.
n
F10603
• Measure the resistance at each terminal.
Resistance of ECU Wiring Connectors
Terminals
Condition
Resistance (0)
I
DL
- E2
Throttle valve open
Throttle valve fully closed
Less than 2,300
VTA
- E2
Throttle valve fully open
3,500 -
10,300
Throttle valve fully closed
300 -
6,300
VC
- E2
—
4,250 -
8,250
VC-E22
—
200 -
400
VS -
E22
Measuring plate fully closed
200 -
600
Measuring plate fully open
20 -
1,200
THA -
E2
Intake air temperature 20°C (68°F)
2,000 -
3,000
THW -
E2
Coolant temperature 80°C (176°F)
200 -
400
G1 -GE)
1
85 -
265
NE-GO
ISC1, ISC2
ISC3, ISC4
+
B
—
1
0 -
30
ECU Terminals
E01
N10
HT1
STJ
T
11C
1s
GO
G1
—
NE
—
0X1
THw
E02
N
20
HT2
El
TWS
IS
3
C
IS4C
VF1
VF2
VTA
IDL
E11
OX2
E2
IGF IGT — REL EGRSPD FPUTHA VS VC
BATT
SV
E22 — 4WDSTP — W NSW STA Al — +B +E
F10574
tJ
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