Powertrain, generic (extended)

P212B Throttle Position Sensor/Switch G Circuit Range/Performance

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modePossible

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.

Likely causes

ECM software setting the code without a real fault (update available)
Sensor G drifted or worn, disagreeing with its partner sensor
Deposits or sticking plate making the angle disagree with airflow
Contact resistance at the throttle body connector

Symptoms

  • MIL on, often without noticeable driving problems
  • Reduced power if the plausibility fault persists
  • Uneven idle on twin-throttle engines

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€0–700
Time0.5–2.5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

throttle position sensor gelectronic throttle bodyecm

Related codes

P212AP212CP212DP212EP212FP2135

References: gsi.ext.gm.com, gsi.ext.gm.com, static.nhtsa.gov.