Toyota Camry Manual page 1290

DTC P0135
DTC P0141
DTC P0155
CIRCUIT DESCRIPTION
Refer to DTC P0125 (Insufficient Coolant Temp. for Closed Loop Fuel Control (Except California Spec.)) on
page DI–244.
DTC No.
When heater operates, heater current exceeds 2.35 A
P0135
(2 trip detection logic)
P0141 P0141
Heater current of 0.2 A or less when heater operates
P0155
(2 trip detection logic)
HINT:
Bank 1 refers to the bank that includes cylinder No.1.
D
Bank 2 refers to the bank that does not include cylinder No.1.
D
Sensor 1 refers to the sensor closer to the engine body.
D
Sensor 2 refers to the sensor farther away from the engine body.
D
WIRING DIAGRAM
Refer to DTC P0125 (Insufficient Coolant Temp. for Closed Loop Fuel Control (Except California Spec.))
on page DI–244.
INSPECTION PROCEDURE
HINT:
Read freeze frame data using TOYOTA hand–held tester or OBD II scan tool. Because freeze frame records
the engine conditions when the malfunction is detected, when troubleshooting it is useful for determining
whether the vehicle was running or stopped, the engine warmed up or not, the air–fuel ratio lean or rich, etc.
at the time of the malfunction.
DIAGNOSTICS
Heated Oxygen Sensor Heater Circuit Mal-
function (Bank 1 Sensor 1) (EX. CA Spec.)
Heated Oxygen Sensor Heater Circuit Mal-
function (Bank 1 Sensor 2)
Heated Oxygen Sensor Heater Circuit Mal-
function (Bank 2 Sensor 1) (EX. CA Spec.)
DTC Detecting Condition
– ENGINE (1MZ–FE)
D Open or short in heater circuit of heated oxygen sensor
D Heated oxygen sensor heater
H t d
D ECM
Author :
Trouble Area
h t
Date :
DI–263
DI07P–06
498