replace rear o2 sensor.
what is p0138 code mean on 2005 toyota tundra
Not likely. Code P0138 is------O2 Sensor Circuit High Voltage (Bank 1 Sensor 2).
Trouble code P0138 means:O2 sensor circuit high voltage (Bank 1 Sensor 2)
Trouble code P0138 means:O2 sensor circuit high voltage (Bank 1 Sensor 2)
It's your 02 sensor.
Trouble code P0138 means: O2 (B1 S2) Sensor Voltage High Condition
Trouble code P0138 means:O2 sensor circuit high voltage (Bank 1 Sensor 2)
Trouble code P0138 means:O2 sensor circuit high voltage (Bank 1 Sensor 2)
Engine code P0138 indicates a high voltage signal from the oxygen sensor circuit, specifically from the bank 1 sensor 2 (after the catalytic converter). To fix this issue on a Jeep Liberty, first inspect the wiring and connectors for damage or corrosion. If those are in good condition, test the oxygen sensor itself and consider replacing it if it's faulty. Additionally, check the exhaust system for any leaks that could affect sensor readings.
They can be cleared, but will return if not repaired.
it's the code for bad o2 sensor. i think its the downstream one. take it to autozone and have them check it for free. then they can tell you which o2 is bad. change it and reset the code. good luck.
That is behind the catalytic converter.