Toyota 1 MZ–FE Manual page 471

Check voltage between terminals VTA and E2 of ECM
(See page EG2–469, step 5).
Check and replace ECM (See page IN–36).
Check voltage terminals VC and E2 of ECM
(Seepage EG2–469, step 6).
Check for open in harness and connector between
ECM and sensor (VC line) (See page IN–31).
1MZ–FE ENGINE – CIRCUIT INSPECTION
Check for open and short in harness and
connector between ECM and throttle
position sensor (VTA line)
(See page IN–31).
Check and replace ECM (See page IN–36).
EG2–471