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Information only. This page provides general educational information about fault code P1195. We do not assess the urgency or safety implications of any specific fault. That requires in-person diagnosis by a qualified mechanic. Full terms.

Recommended next steps

Whether a fault is urgent, drivable, or routine depends entirely on the cause on a specific vehicle, and that can only be determined by a qualified mechanic with diagnostic equipment. If a warning light is illuminated, the most reliable next step is professional diagnosis.

What does P1195 mean?

P1195 is a Powertrain (engine, transmission, fuel system) fault code. It indicates: O2 (B1 S1) Circuit Insufficient Activity.

Manufacturer-specific notes

Some manufacturers publish additional definitions or variations for this code. Always cross-check with your vehicle's own service documentation.

Chrysler O2 (B1 S1) Circuit Insufficient Activity
Dodge O2 (B1 S1) Circuit Insufficient Activity
Fiat EGR Boost Or Pressure Sensor Circuit Malfunction
Ford EGR Boost Or Pressure Sensor Circuit Malfunction
Hyundai EGR Boost Or Pressure Sensor Circuit Malfunction
Jeep O2 (B1 S1) Circuit Insufficient Activity
Kia EGR Boost Or Pressure Sensor Circuit Malfunction
Lexus O2 (B1 S1) Circuit Insufficient Activity
Mazda EGR Boost Sensor Circuit Malfunction
RAM EGR Boost Or Pressure Sensor Circuit Malfunction
Toyota EGR Boost Or Pressure Sensor Circuit Malfunction

About Electrical & Sensors codes

Codes in the Electrical & Sensors category.

P1195 is one of 4,010 codes in this category. Browse all Electrical & Sensors codes →

What we know about P1195 specifically

We record the SAE J2012 standardised definition and the system this code belongs to, but we have not yet published detailed driver-reported symptoms, common causes, or step-by-step diagnostic guidance for P1195.

Rather than invent that information by generating generic content from a template, we leave it out. For specific guidance, the most reliable sources are:

  • your vehicle's own service manual or manufacturer-specific technical bulletins
  • a qualified mechanic with a manufacturer-level diagnostic tool
  • a marque specialist familiar with your make and model

Spotted an issue or have something to add? Mechanics, technicians, and drivers who have first-hand experience with P1195 can submit a correction or expansion. We review every submission before publishing, mechanic submissions are prioritised.

Information only, not professional advice

The information on this page is provided for general guidance and educational purposes only. It is not a substitute for diagnosis or repair advice from a qualified mechanic. Always verify any fault before paying for repairs. carfaultcodes.co.uk accepts no liability for decisions made based on this information. Full terms →

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