What does code P03D1 mean?

Q: What does code P03D1 mean?

Cylinder 7 Pressure Sensor Circuit. P03D1 indicates that the powertrain control module (PCM) has detected an abnormal electrical condition on the circuit for the cylinder 7 pressure sensor, which is used on engines with cylinder pressure monitoring for combustion feedback. The PCM monitors the sensor signal voltage and sets this code when the voltage falls outside the expected range or the circuit has an open, short, or excessive resistance.

DTC codes / P03xx · Ignition system and misfire / P03D1

P03D1Cylinder 7 Pressure Sensor Circuit

P03D1 indicates that the powertrain control module (PCM) has detected an abnormal electrical condition on the circuit for the cylinder 7 pressure sensor, which is used on engines with cylinder pressure monitoring for combustion feedback. The PCM monitors the sensor signal voltage and sets this code when the voltage falls outside the expected range or the circuit has an open, short, or excessive resistance.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaIgnition system and misfire

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