There Is No Voltage Between Ecm Terminals Vcc And E2 (E21) (Ig Sw On); There Is No Specified Voltage Between Ecm Terminals Vta And E2 (E21) (Ig Sw On) - Toyota 22R-E Service Manual

EG1–146
ENGINE – MFI SYSTEM
Vcc – E2 (E21 )
(1) There is no voltage between ECM terminals Vcc and E2 (E21).
(IG SW ON)
Check that there is voltage between ECM terminals + B (+ B1)
and E1. (IG SW ON)
(2) Check throttle position sensor.
BAD
Repair or replace.
Try another ECM.
VTA – E2 (E21)
(1) There is no specified voltage between ECM terminals VTA and
E2 (E21).(IG SW ON)
(2) Check that there is voltage between ECM terminals Vcc and E2
(E21). (IG SW ON)
(3) Check throttle position sensor.
Check wiring between ECM and
throttle position sensor.
Try another ECM.
Refer to No. 1.
Check wiring between ECM and
throttle position sensor.
Repair or
replace wiring.
Perform inspection of
Vcc – E1 (E21)
BAD
Repair or replace.
BAD
Repair or replace.
BAD