What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer communications
2Original wording in English
LEXUS
Reported code forms P0138
LEXUS: MIL ON DTC P2195, P2197, P0138, P0158, P0031, OR P0051. ENGINE/HYBRID SYSTEM. ENGINE CONTROL. SOME VEHICLES MAY EXHIBIT A MIL ON CONDITION WITH ONE OR MORE OF THE DIAGNOSTIC TROUBLE CODES (DTCS) STORED IN THE…
LEXUS
Reported code forms P0138
LEXUS: ENGINE CONTROL. SOME VEHICLES MAY EXHIBIT A MIL ON DIAGNOSTIC TROUBLE CODE (DTC) P0138 AND/OR P0158 (OXYGEN SENSOR CIRCUIT HIGH VOLTAGE BANK 1 OR 2). IN SOME INSTANCES A P2195 OR 02197 (A/F SENSOR SIGNAL STUCK…
Check vehicle applicability
4A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.