EFI SYSTEM —
Troubleshooting with Volt/Ohmmeter
FI-37
No.
Terminals
Trouble
Condition
STD Voltage
5
THW -
E2
No voltage
Ignition switch
Coolant temperature 80°C
0.1 - 1.0 V
ON
(176°F)
ECU
w
F10487
1
There is no voltage between ECU terminals THW and E2.
(IG SW ON)
O
Check that there is voltage between ECU terminal + B
(
+ B1) and body ground.
(IG SW ON)
OK
NO
Refer to No. 1.
(See page Fl-30)
Check wiring between ECU terminal El and
body ground.
OK
BAD
Check water temp. sensor.
3
Fl-73)
-
FI
page
Repair or replace.
(See
BAD
OK
Replace water
Check wiring between ECU and
temp. sensor.
water temp. sensor.
OK
BAD
Try another ECU.
Repair or replace.
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