Toyota 22R-E Service Manual page 192

EG1–158
ENGINE – MFI SYSTEM
(1) There is no voltage between ECM terminals THG and E2 (E21)
(Engine running at 2,000 rpm)
(2) Check that there is voltage between ECM terminal + B (+ B1)
and body ground. (IG SW ON)
Check wiring between ECM terminal E, and body ground.
Check EGR system.
(3) Check EGR gas temp. sensor.
BAD
Replace EGR gas temp.
sensor.
Try another ECM.
Refer to No. 1.
BAD
Repair or replace.
BAD
Repair or replace.
Check wiring between ECM
and EGR gas temp. sensor.
BAD
Repair or replace.