Toyota Camry Manual page 1277

DI–250
HINT:
After confirming DTC P0125, use the OBD II scan tool or TOYOTA hand−held tester to confirm voltage
D
output of heated oxygen sensors (bank 1, 2 sensor 1) from CURRENT DATA.
D
The ECM controls the voltage of AFRu, AFLu, AFRy and AFLy terminals of ECM to the fixed volt-
age. Therefore, it is impossible to confirm the A/F sensor output voltage without OBD II scan tool or
TOYOTA hand–held tester.
D
OBD II scan tool (excluding TOYOTA hand–held tester) displays the one fifth of the A/F sensor output
voltage which is displayed on the TOYOTA hand–held tester.
WIRING DIAGRAM
A/F Sensor
(Bank 1, Sensor 1)
*: TMC Made
*: TMMK Made
DIAGNOSTICS –
A/F Sensor
(Bank 2, Sensor 1)
Engine Room J/B
EFI Relay
EFI
Engine Room
W–B
L
A/F HTR Relay
ENGINE (1MZ–FE)
A/F Sensor
(Bank 1, Sensor 2)
BR
B
Engine Room
A/F HTR
W
Author :
A07445
Date :
485