(2) Check that there is voltage between ECM terminal STP and
body ground when the brake pedal is depressed.
(3) Check wiring between ECM terminal E1 and body
ground.
(1) There is no voltage between ECM terminals STP and E1.
Check STOP fuse (15A) and stop
light switch.
Check wiring between ECM
terminal STP and battery.
Repair or replace.
Stop light switch ON
Try another ECM.
Repair or replace.
Repair or replace.
STD Voltage
Condition
No voltage
Terminals Trouble
BAD
BAD
BAD
No.
–ENGINE MFI SYSTEM
EG1–173
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