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) - Toyota 22R-E Service Manual

EG1–130
ENGINE – MFI SYSTEM
Vs – E2 (E21)
(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
(E12). (IG SW ON)
Refer to Vc – E2 (E21 ).
(3) Check volume air flow meter.
Check wiring between ECM
and volume air flow meter.
Try another ECM.
THA – E2 (E21)
(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)
Check intake air temp. sensor.
BAD
Replace volume
air flow meter.
Try another ECM.
BAD
Repair or replace.
BAD
Repair or replace.
BAD
Repair or replace.
Refer to No. 1.
Check wiring between ECM and
intake air temp. sensor.
BAD
Repair or replace
wiring.