What does code P1247 mean?

Q: What does code P1247 mean?

Accelerator Position Sensor 2 Circuit Malfunction. P1247 on a Honda means the powertrain control module (PCM) has detected an electrical fault in the signal circuit for accelerator pedal position sensor 2, the secondary track of the drive-by-wire throttle system. The PCM compares this signal against sensor 1 and expects a specific mathematical relationship; when the voltage or correlation falls outside the allowed range, it stores P1247 and typically commands reduced engine power.

DTC codes / Honda codes / P1247

P1247 · HondaAccelerator Position Sensor 2 Circuit Malfunction

P1247 on a Honda means the powertrain control module (PCM) has detected an electrical fault in the signal circuit for accelerator pedal position sensor 2, the secondary track of the drive-by-wire throttle system. The PCM compares this signal against sensor 1 and expects a specific mathematical relationship; when the voltage or correlation falls outside the allowed range, it stores P1247 and typically commands reduced engine power.

SystemPowertrain

Code typeHonda specific

SeverityHigh

Fix difficultyProfessional

AreaFuel and air metering (injector circuits)

Guidance is general and written for Honda vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.