Toyota 1 MZ–FE Manual page 448

EG2–448
3
Check voltage between terminal VG of ECM and body ground.
Check for open and short in harness and connector between mass
4
air flow meter and ECM (See page IN–31).
Replace mass air flow meter.
1MZ–FE ENGINE – CIRCUIT INSPECTION
(1) Remove glove compartment.
(See page EG2–309)
(2) Start the engine.
Measure voltage between terminal VG of ECM and
body ground while engine is idling.
Voltage: 1.1 – 1.5 V
Check and replace ECM (See page IN–36).
Repair or replace harness or connector.
(P position and A/C switch OFF)