P2595Turbocharger Speed Sensor B Circuit Low
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2595 is logged when the signal of turbocharger speed sensor B stays below the range the engine computer accepts, as with a short to ground or a sensor whose output has collapsed. Bentley names it for the W12 in Continental GT, GTC and Flying Spur from 2018 and later also in the Bentayga, stored in engine control unit 1 or 2. Unlike the plausibility code P2594, which may first be cleared and retested, the bulletin goes straight to the replacement of the affected sensor (G688 or G689) once wiring tests for opens and shorts pass; on the Bentayga the bank 1 sensor is much harder to reach. The opposite electrical fault is P2596, sensor A reports the same condition as P2580.
- What you may notice
- Malfunction indicator lamp on
- Speed of the second turbo shown as zero or very low
- Possible reduction of boost
- Likely causes
- LikelySpeed sensor B with collapsed output
- PossibleSignal wire of sensor B shorted to ground
- RareCorroded or contaminated connector at sensor B
- 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 – €1,200
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.