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DTC codes / Ford codes / P1221

P1221 · FordTraction Control System Malfunction

P1221 on a Ford vehicle means the powertrain control module (PCM) has detected a fault within the traction control system, typically a mismatch between the requested and actual throttle position or an unexpected signal from the traction control switch. The PCM sets this code when it cannot confirm that the traction control system is functioning correctly, often due to a sensor or wiring issue rather than a mechanical failure.

SystemPowertrain
Code typeFord specific
SeverityMedium
Fix difficultyIntermediate
AreaFuel and air metering (injector circuits)
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