OBD-II · Engine and powertrain (P)
P2562
Turbo boost control position sensor A circuit
What it means
The sensor that reports the turbo's variable vane position (usually built into the electronic turbo actuator) has an electrical fault.
Symptoms
- loss of power (limp mode)
- engine warning light
Likely causes, most likely first
| No. | Cause |
|---|---|
| 01 | failed position sensor inside the turbo actuator |
| 02 | corroded connector at the actuator |
| 03 | damaged wiring near the turbo |
| 04 | 5 V reference or ground fault |
What to check, step by step
- 01Inspect the actuator connector and wiring near the hot turbo.
- 02Check the 5 V reference, ground and signal with key on.
- 03Read position live data while running the actuator test.
- 04Replace the actuator (sensor is usually integrated); calibrate or program it as the maker requires.