Toyota 22R-E - Vs-E2 (E21); Tha-E2 (E21); There Is no Voltage between ECM Terminals Vs and E2 (E21) (IG SW ON); There Is no Voltage between ECM Terminals THA and E2 (E21) (IG SW ON)

(2) Check that there is voltage between ECM terminals Vc and E2
(E12). (IG SW ON)
(1) There is no voltage between ECM terminals THA and E2(E21).
(IG SW ON)
Check that there is voltage between ECM terminals + B (+ B1)
and body ground. (IG SW ON)
(1) There is no voltage between ECM terminals Vs and E2 (E21)
(IG SW ON)
Check wiring between ECM and
intake air temp. sensor.
Check wiring between ECM
and volume air flow meter.
Check intake air temp. sensor.
(3) Check volume air flow meter.
Repair or replace
wiring.
Replace volume
air flow meter.
Refer to Vc – 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
EG1–130