P2569Direct Ozone Reduction Catalyst Temperature Sensor Circuit Low
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- How the car detects it
- P2569 means the radiator-mounted sensor of a DOR system (direct ozone reduction: a radiator coating that breaks down ozone in the incoming air) shows an electrical fault toward ground. According to VW's 2014 data books for the CC with 2.0 L TSI (CBFA, CCTA) and the Tiguan (CCTA), the sensor talks to the engine computer over a LIN line, and P2569 is set when that link fails because the line is grounded. The same books assign an open line or a short to battery voltage to P2570, while P2568 covers the identity and function check. Typical triggers are a chafed LIN wire touching the body or a corroded radiator connector. The car drives normally, but the stored code can fail an emissions inspection.
- What you may notice
- Check engine light on
- No change in driveability or engine temperature
- Emissions inspection may be refused
- Likely causes
- LikelyLIN wire to the radiator sensor chafed and shorted to ground
- PossibleWater or salt corrosion in the radiator sensor connector
- RareInternal short in the radiator sensor
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €40 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.