P212BThrottle Position Sensor/Switch G Circuit Range/Performance
- 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
- P212B means throttle signal G is electrically valid but its value does not fit. GM's 2023 table 23OBDG07 applies it to sensor 2 of the bank 2 throttle body on a twin-throttle engine: the code sets when the angle derived from sensor 2 differs from that of sensor 1 by more than about 5-6.25 %, or from the angle modelled from manifold pressure by more than 9 %, in one trip; the 2024 table repeats the check. Nissan uses P212B on the 2021-2023 Rogue with the 1.5 L KR15DDT engine; bulletin NTB23-021 cures a lit MIL without drivability complaints by ECM reprogramming. Circuit faults are P212A and P212C-P212E. Depending on the cause the engine may run normally or limit power.
- What you may notice
- MIL on, often without noticeable driving problems
- Reduced power if the plausibility fault persists
- Uneven idle on twin-throttle engines
- Likely causes
- PossibleECM software setting the code without a real fault (update available)
- PossibleSensor G drifted or worn, disagreeing with its partner sensor
- PossibleDeposits or sticking plate making the angle disagree with airflow
- RareContact resistance at the throttle body connector
- 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: €0 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.