Source-backed diagnostic reference
P1221 EV diagnostic code
Pedal Position Sensor 2 Range Performance Problem
Reference status: This page preserves source-backed code definitions for discovery. Manufacturer/model applicability, repair steps and safety conclusions are not treated as verified unless a manufacturer-specific verified report is available.
Reference definitions
- BMW: Pedal Position Sensor 2 Range Performance Problem Source
- BUICK: Throttle Position (TP) Sensor 1- 2 Correlation Source
- CADILLAC: Throttle Position (TP) Sensor 1-2 Correlation Source
- CHEVY: Throttle Position (TP) Sensor 1-2 Correlation Source
- CHRYSLER: Throttle Position (TP) Sensor 1-2 Correlation Source
- FORD: Traction Control System Malfunction Source
- GM: Throttle Position (TP) Sensor 1 2 Correlation Source
- GMC: Throttle Position (TP) Sensor 1 2 Correlation Source
- JAGUAR: Pedal Demand Sensor B Circuit Range Performance Source
- LINCOLN: Traction Control System Malfunction Source
- MAZDA: Traction Control System Source
- MERCEDES: CAN Communication ETC Or ETS Interrupted Source
- MERCURY: Traction Control System Malfunction Source
- OLDSMOBILE: Throttle Position TP Sensor 1-2 Correlation Source
- OTHER: Traction Control System Malfunction Source
- SATURN: Throttle Position TP Sensor 1-2 Correlation Source
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