Toyota Camry Manual page 1287

DI–260
2 Check the output voltage of heated oxygen sensors (bank1, 2 sensor1)
during idling.
PREPARATION:
Warm up the heated oxygen sensors (bank1, 2 sensor1) with the engine at 2,500 rpm for approx. 90 sec.
CHECK:
Use the OBD II scan tool or TOYOTA hand–held tester to read the output voltage of the heated oxygen sen-
sors (bank1, 2 sensor1) during idling.
OK:
Heated oxygen sensors (bank1, 2 sensor1) output voltage:
Alternates repeatedly between less than 0.4 V and more than 0.55 V (See the following table).
NG
3 Check for open and short in harness and connector between ECM and heated
oxygen sensors (bank1, 2 sensor1) (See page IN–31).
OK
4 Check air induction system (See page SF–1).
OK
DIAGNOSTICS – ENGINE (1MZ–FE)
OK Go to step 8.
NG Repair or replace harness or connector.
NG Repair or replace.
Author : Date :
P18349
495