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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q
^ ao
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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
Summary of Contents for 3F-E
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