Toyota Camry Manual page 1252

3 Check voltage between terminal VG of ECM connector and body ground.
VG (+)
NG
4 Check for open and short in harness and connector between mass air flow meter
and ECM (See page IN–31).
OK
Replace mass air flow meter.
DIAGNOSTICS – ENGINE (1MZ–FE)
PREPARATION:
(a) Remove the glove compartment (See page SF–73).
(b) Start the engine.
CHECK:
Measure voltage between terminal VG of the ECM connector
and body ground while engine is idling.
OK:
Voltage:
1.1 ∼ 1.5 V (P or N position and A/C switch OFF)
A02017
OK Check and replace ECM (See page IN–31).
NG Repair or replace harness or connector.
Author : Date :
DI–225
460