Toyota 3VZ–FE Troubleshooting Manual page 375

EG–372
INSPECTION PROCEDURE
HINT: If diagnostic trouble codes 22, 24, 32 and 41 are output simultaneously, E2 (sensor ground) may be open.
1
Check voltage between terminals THW and E2 of ECM connector.
NG
2
Check engine coolant temp. sensor.
OK
Check for open and short in harness and connector between ECM and water temp. sensor (See
3
page IN–27).
OK
Check and replace ECM.
ENGINE TROUBLESHOOTING
P
OK
OK
P
OK
NG
NG
– CIRCUIT INSPECTION
1. Remove glove compartment (See page BO–111).
2. Turn ignition switch on.
Measure voltage between terminals THW and E2 of
C
ECM connector.
Check for momentary interruption (See page EG–333).
Disconnect the engine coolant temp. sensor connector,
(See page EG–224).
C
Measure resistance between terminals.
Resistance is within Acceptable Zone on chart.
Replace engine coolant temp. sensor.
Repair or replace harness or connector.