P2567: Direct Ozone Reduction Catalyst Temperature Sensor Circuit

P2567 is the general circuit fault of the sensor fitted to a direct ozone reduction (DOR) radiator - a radiator with a catalytic coating that converts ground-level ozone in the passing air and earns low-emission vehicles an NMOG credit. CARB section (e)(14) requires the OBD system to detect a missing or deteriorated DOR function. No manufacturer publicly documents P2567 itself. VW's 2014 books (CC, Tiguan) use the siblings P2568-P2570 for this sensor, with an identity check and LIN bus faults; MINI's 2015-2016 Cooper S with the B46M PZEV engine carries a LIN-linked catalyst sensor fixed to the radiator, logged under BMW's own fault codes. P2568 is the plausibility fault, P2569-P2571 low, high and intermittent. Often the radiator with its bonded sensor is replaced.

Medium severity. Can I keep driving?You can usually keep driving, unless you notice a loss of power, which may point to a blockage. The car may not pass an emissions inspection.

Symptoms

Check engine light
No change in driveability or engine cooling
Possible failed emissions inspection because of the stored code

Most likely causes

Failed radiator identification/temperature sensor
Damaged sensor wiring or connector at the radiator
Replacement radiator without coating or without sensor fitted

What to check, in order

Start with the simplest. You can tick off each step.

First resolve any misfire or fuel mixture codes
Look for exhaust leaks between the engine and the second sensor
Use live data to compare the signals from both oxygen sensors
Check for a blockage by measuring exhaust back pressure
Replace the catalytic converter only at the end of the diagnosis

Good to know

Repair difficulty: medium
It affects emissions.

What each character of P2567 means

P: Powertrain: engine and transmission
2: Generic code: same on every make
5: Speed and idle
67: Specific fault in that system

Frequently asked questions

Can I keep driving with code P2567?

You can usually keep driving, unless you notice a loss of power, which may point to a blockage. The car may not pass an emissions inspection.

What causes code P2567?

The most common causes are: failed radiator identification/temperature sensor; damaged sensor wiring or connector at the radiator; replacement radiator without coating or without sensor fitted.

Related codes

Sources

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.