Toyota 3VZ–FE Troubleshooting Manual page 458

2
Check voltage between terminal ISAAC of ECM connector and body ground.
NG
Check for open and short in harness and connector between SFI main relay and ECM (See page
3
IN–27).
OK
Check and replace ECM.
ENGINE TROUBLESHOOTING
P
C
OK
Hint
Check for vacuum tank. (See page EG–216).
OK
Repair or replace harness or connector.
NG
– CIRCUIT INSPECTION
1. Remove glove compartment. (See page BO–111).
2. Turn ignition switch on.
Measure voltage between terminals ISAAC of ECM
connector and body ground.
Voltage: 10 – 14 V
EG–455