(1) There is no voltage between ECM terminals THA and E2 (E21).
(IG SW ON)
(1) There is no voltage between ECM terminals Vs and E2 (E21).
(IG SW ON)
(2) Check that there is voltage between ECM terminals Vc and E2
(E201). (IG SW ON)
Check that there is voltage between ECM terminal +B (+ B1 )
and body ground. (IG SW ON)
(2) Check intake air temp.
sensor.
Check wiring between ECM and
intake air temp. sensor.
Check wiring between ECM
and volume air flow meter.
Check volume air flow meter.
Replace volume air
flow meter.
Repair or replace
wiring.
Refer to Vcc – E2 (E21 ).
• THA – E2 (E21)
Try another ECM.
Try another ECM.
• Vs – E2 (E21)
Repair or replace.
Repair or replace.
Repair or replace.
Refer to No. 1.
BAD
BAD
BAD
BAD
BAD
–ENGINE MFI SYSTEM
EG1–166
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