(2) Check that there is voltage between ECM terminals VC and E2 (E21).
(IG SW ON)
Check that there is voltage between ECM terminal + B (+ B1) and
body ground. (IG SW ON)
(1) There is no voltage between ECM terminals VS and E2 (E21).
(IG SW ON)
(1) There is no voltage between ECM terminals THA and E2 (E21).
(IG SW ON)
Check wiring between ECM and
volume air flow meter.
Check wiring between ECM
and volume air flow meter.
(2) Check intake air temp.
sensor.
b Check volume air flow meter.
Replace volume air flow
meter.
Repair or replace
wiring.
Refer to VC – E2 (E21).
• THA – E2 (E21)
• VS – E2 (E21)
Repair or replace.
Try another ECM.
Repair or replace.
Repair or replace.
Try another ECM.
Refer to No. 1.
BAD
BAD
BAD
BAD
BAD
–ENGINE MFI SYSTEM
EG2–191