P265B"B" Rocker Arm Actuator Position Sensor Circuit Range/Performance (Bank 1)
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- Toyota documents this code on Valvematic engines, where an electric lift controller turns a shaft that alters rocker geometry and reports its angle back. P265B is set when that feedback stays electrically valid but does not track the target. Bulletin T-SB-0011-14 (2014 Corolla, 2ZR-FAE) pairs it with P2646 and fixes it by reflashing the ECM. T-SB-0098-19 (2018–19 C-HR with 3ZR-FAE, 2020 Corolla with 2ZR-FAE) adds the Valvematic angle codes P10A0 and P1055 and replaces the lift controller if the code returns. Both start with a learn value reset and an engine-off active test in which the actual angle should drop to about 105–106° and climb above 108°. CARB demands that such systems recognise deviations from the target and sluggish reaction.
- What you may notice
- MIL on, often together with P2646
- Reduced power and slower throttle response
- Fault may return after a short rev to 3,500 rpm
- Likely causes
- LikelyOutdated ECM calibration (Toyota 2014 Corolla)
- PossibleContinuously variable lift controller sticking or worn
- PossibleStored learn values no longer match the mechanism
- RareDrifting angle sensor in the controller
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €100 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.