What the OBD-II code p0138 means

Fault code P0138 – a step-by-step guide to diagnosing and fixing it

The meaning of error code P0138 – O2 Sensor Circuit High Voltage (Bank 1, Sensor 2)
P0138
Search your trouble code

Cars the fault code P0138 is most commonly found on

Fault code P0138 - O2 Sensor Circuit High Voltage (Bank 1, Sensor 2) can occur with any car but is most often found on the following cars:

  • Ford
  • Nissan: Micra, Qashqai
  • Toyota: Prius, Corolla
  • Honda: Civic, Accord, Jazz
  • Jeep: Wrangler, Cherokee

If you get the code P0138 on your car, make sure that the diagnostics are carried out correctly and the error is still relevant. Check for symptoms associated with the problem and explore options for resolving it.

What to do if the fault code p 0138 appears

Most viewed car repair videos

  • Error p0138: a step-by-step diagnosis and repair guide
    How to change front wheel bearing on MERCEDES-BENZ M W163 TUTORIAL | AUTODOC
  • Error p0138: a step-by-step diagnosis and repair guide
    How to change fuel filter BMW 3 (E90) [TUTORIAL AUTODOC]
  • Error p0138: a step-by-step diagnosis and repair guide
    How to change Front wheel bearing on VW GOLF 4 TUTORIAL | AUTODOC
  • Error p0138: a step-by-step diagnosis and repair guide
    How to change a rear brake pads FORD FOCUS 3 TUTORIAL | AUTODOC
  • Error p0138: a step-by-step diagnosis and repair guide
    How to change pollen filter / cabin filter on AUDI A6 (C6) [TUTORIAL AUTODOC]
  • Error p0138: a step-by-step diagnosis and repair guide
    How to change rear brake discs and brake pads on PEUGEOT 307 [TUTORIAL AUTODOC]
  • Error p0138: a step-by-step diagnosis and repair guide
    How to change fuel filter NISSAN X-TRAIL T30 TUTORIAL | AUTODOC
  • Error p0138: a step-by-step diagnosis and repair guide
    How to change front wheel bearing TOYOTA YARIS XP10 TUTORIAL | AUTODOC
Want to get more useful information?

Ask questions or share your repair experience on the car forum. Subscribe to updates so you don't miss out on new guides.

Everything you need to know about the code P0138
Tips from AUTODOC CLUB
View more
  • Life hacks for the code P0138
    How to polish your car | AUTODOC tips
  • Fast fixes for the OBD2 code p0138
    How to check your head gasket | AUTODOC
  • The most common causes of code p 0138
    Top 5 tips to prevent car rust | AUTODOC tips
  • Advice on what to do about the error P0138
    How do EGR valves work? | AUTODOC
Install the AUTODOC CLUB app!
Your personal car expenses manager, maintenance tips, reminders about upcoming appointments and service intervals, DIY repair instructions – all this on your phone.
QR-code scan for AUTODOC CLUB app
Scan

To download the app:

  • - scan the QR code
  • - download from App Store
  • - download from Google Play
Autodoc CLUB App icon
Your profile is your personal assistant.

It can track car expenses, keep a car log and replacement schedule, and save favourite materials, notes and documents