Toyota 2VZ-FE Manual page 280

INSPECTION PROCEDURE
Check intake air temp. sensor.
Check voltage between terminals THA and E2 of ECU connector.
Check harness and connector between ECU and intake air temp.
sensor.
Replace ECU.
* When diagnostic code 24 is not displayed, proceed to next circuit inspection shown on matrix chart (See
page TR–21).
ENGINE TROUBLESHOOTING – Circuit Inspection
Disconnect air flow meter connector.
Using an ohmmeter, measure resistance between
terminals THA and E2.
Replace air flow meter.
(1) Connect air flow meter connector.
(2) Turn ignition switch ON.
Measure voltage between terminals THA and E2 of
ECU connector.
Voltage: Neither 0V nor 5V
Replace ECU. *
Repair or replace harness or connector.
TR–43