What does code P1581 mean?

Q: What does code P1581 mean?

Cruise Move Circuit High Voltage. P1581 on Chrysler vehicles means the powertrain control module (PCM) has detected a high-voltage condition on the cruise control servo movement circuit, which is the feedback line that reports the servo's actual position. The PCM expects a varying voltage as the servo moves; a reading above the normal range tells the module the circuit is shorted to voltage or the servo position sensor has failed.

DTC codes / Chrysler codes / P1581

P1581 · ChryslerCruise Move Circuit High Voltage

P1581 on Chrysler vehicles means the powertrain control module (PCM) has detected a high-voltage condition on the cruise control servo movement circuit, which is the feedback line that reports the servo's actual position. The PCM expects a varying voltage as the servo moves; a reading above the normal range tells the module the circuit is shorted to voltage or the servo position sensor has failed.

SystemPowertrain

Code typeChrysler specific

SeverityLow

Fix difficultyIntermediate

AreaVehicle speed, idle control and auxiliary inputs

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