Terminals
No.
ENGINE
Trouble
Ignition switch
No voltage
ON
(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 engine coolant temp. sensor.
Replace engine
coolant temp. sensor.
Try another ECM.
–
MFI SYSTEM
Condition
Coolant temperature 80_C
BAD
Check wiring between ECM and
engine coolant temp. sensor.
EG1–149
STD– Voltage
(176_)
Refer to No. 1.
BAD
Repair or replace.
BAD
Repair or replace.