(1) There is no voltage between ECM terminals THW and E2
(E21) (IG SW ON)
(2) Check that there is voltage between ECM terminal + B (+ B1)
and body ground. (IG SW ON)
Check wiring between ECM terminal E1 and body
ground.
Check wiring between ECM and
engine coolant temp. sensor.
Check engine coolant temp. sensor.
Coolant temperature 80C
(176F)
Replace engine coolant
temp. sensor.
Ignition switch
ON
Try another ECM.
Repair or replace.
Repair or replace.
Refer to No. 1.
STD Voltage
No voltage
Terminals
Condition
Trouble
BAD
BAD
BAD
No.
–ENGINE MFI SYSTEM
EG1–167
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