Toyota 3VZ–FE Troubleshooting Manual page 378

INSPECTION PROCEDURE
1
Check voltage between terminals THA and E2 of ECM connector.
NG
2
Check intake air temp. sensor.
OK
Check for open and short in harness and connector between ECM and intake air temp. sensor
3
(See page IN–27).
OK
Check and replace ECM.
ENGINE TROUBLESHOOTING
P
C
OK
Check for momentary interruption (See page EG–333).
OK
P
C
OK
Replace intake air temp. sensor (Replace volume air flow
NG
meter).
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 THA and E2 of
ECM connector.
Disconnect he volume air flow meter connector.
Measure resistance between terminals THA and E2 of
volume air flow meter connector.
Resistance is within Acceptable Zone on chart.
EG–375