DI
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46
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DIAGNOSTICS
ENGINE
1996 LAND CRUISER (RM451U)
DTC
P0133
Heated Oxygen Sensor Circuit Slow
Response (Bank 1 Sensor 1)
CIRCUIT DESCRIPTION
Refer to DTC P0125 (Insufficient Coolant Temp. for Closed Loop Fuel Control) on page
DI
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40
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DTC No.
DTC Detecting Condition
Trouble Area
P0133
Response time for the heated oxygen sensor’s voltage output
to change from rich to lean, or from lean to rich, is 1 sec. or
more during idling after the engine is warmed up
(2 trip detection logic)
S
Heated oxygen sensor (bank 1 sensor 1)
HINT:
Sensor 1 refers to the sensor closer to the engine body.
INSPECTION PROCEDURE
1
Are there any other codes (besides DTC P0133) being output?
YES
Go to relevant DTC chart.
NO
Replace heated oxygen sensor
(bank 1 sensor 1).
DI5PB
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02
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Version 1.00 - 12/21/2010