Toyota DTC P0135- Manual
Toyota DTC P0135– Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
DI–56
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DIAGNOSTICS
ENGINE
2000 CELICA (RM744U)
DTC
P0135
Heated Oxygen Sensor Heater Circuit
Malfunction (Bank1 Sensor1)
DTC
P0141
Heated Oxygen Sensor Heated Circuit
Malfunction (Bank1 Sensor2)
CIRCUIT DESCRIPTION
Refer to DTC P0125 (Insufficient Coolant Temp. for Closed Loop Fuel Control) on page
DTC No.
DTC Detecting Condition
Trouble Area
P0135
When the heater operates, heater current exceeds 2 A
(2 trip detection logic)
S
Open or short in heater circuit of heated oxygen sensor
H
t d
h
t
P0135
P0141
Heater current of 0.2 A or less when the heater operates
(2 trip detection logic)
S
Heated oxygen sensor heater
S
ECM
HINT:
S
Bank 1 refers to the bank that includes cylinder No.1.
S
Sensor 1 refers to the sensor closer to the engine body.
S
Sensor 2 refers to the sensor farther away from the engine body.
WIRING DIAGRAM
Refer to DTC P0125 on page
for the WIRING DIAGRAM.
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.
DI1ED–07
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