Heated Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 1); Heated Oxygen Sensor Heater Circuit Malfunction (Bank 1 Sensor 2) - Toyota T100 1996 Service Manual

DTC P0135
DTC P0141
CIRCUIT DESCRIPTION
Refer to DTC P0125 on page DI−44.
DTC No.
When heater operates, heater current exceeds 2 A
(2 trip detection logic)
P0135
P0141
Heater current of 0.2 A or less when heater operates
(2 trip detection logic)
HINT:
Sensor 1 refers to the sensor closer to the engine body.
S
Sensor 2 refers to the sensor farther away from the engine body.
S
WIRING DIAGRAM
Refer to DTC P0125 on page DI−44.
1996 TOYOTA T100 (RM449U)
DIAGNOSTICS
Heated Oxygen Sensor Heater Circuit
Malfunction (Bank 1 Sensor 1)
Heated Oxygen Sensor Heater Circuit
Malfunction (Bank 1 Sensor 2)
DTC Detecting Condition
− ENGINE (3RZ−FE)
S Open or short in heater circuit of heated oxygen sensor
S Heated oxygen sensor heater
S ECM
Trouble Area
DI−51
DI0TM−03