What does code P1241 mean?

Q: What does code P1241 mean?

Sensor Power Supply Low Input. P1241 on a Jaguar means the engine control module (ECM) has detected that the voltage supply to one or more sensors has dropped below the expected threshold, typically around 5 volts. The ECM monitors this reference voltage and sets the code when the circuit is shorted to ground, overloaded, or the supply itself is failing.

DTC codes / Jaguar codes / P1241

P1241 · JaguarSensor Power Supply Low Input

P1241 on a Jaguar means the engine control module (ECM) has detected that the voltage supply to one or more sensors has dropped below the expected threshold, typically around 5 volts. The ECM monitors this reference voltage and sets the code when the circuit is shorted to ground, overloaded, or the supply itself is failing.

SystemPowertrain

Code typeJaguar specific

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering (injector circuits)

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