What does code P1903 mean?

Q: What does code P1903 mean?

Kickdown Solenoid Circuit Low Voltage. P1903 on a Ford vehicle means the powertrain control module (PCM) has detected a low-voltage condition on the kickdown solenoid circuit, which is the wire path that commands a forced downshift when you press the accelerator past its normal travel. The PCM monitors the circuit and sets this code when the voltage on the solenoid control wire falls below the expected threshold, indicating a short to ground, an open circuit, or a failed solenoid coil.

DTC codes / Ford codes / P1903

P1903 · FordKickdown Solenoid Circuit Low Voltage

P1903 on a Ford vehicle means the powertrain control module (PCM) has detected a low-voltage condition on the kickdown solenoid circuit, which is the wire path that commands a forced downshift when you press the accelerator past its normal travel. The PCM monitors the circuit and sets this code when the voltage on the solenoid control wire falls below the expected threshold, indicating a short to ground, an open circuit, or a failed solenoid coil.

SystemPowertrain

Code typeFord specific

SeverityMedium

Fix difficultyIntermediate

AreaTransmission

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